July 2013, Volume 15, No. 7

Contents

The 2014 Chevrolet Spark EV . . . . . . . . . . . . . . . . . 1Solving Service Programming System Errors . . . . . 12014 Spark EV Safety Precautions . . . . . . . . . . . . . 32014 Spark EV Bulletin Information . . . . . . . . . . . . 4Finding Diesel Fuel Stations . . . . . . . . . . . . . . . . . . 5Exterior Roof Panel Sag . . . . . . . . . . . . . . . . . . . . . 5Radio Amplifier Performance . . . . . . . . . . . . . . . . . . 6Rattle or Thump Noise above 45 MPH . . . . . . . . . . 6Full Blower/Heat from Vents at Start-up . . . . . . . . 6Connect Back-up Alarm during PDI . . . . . . . . . . . . . 6Insufficient Cooling when the A/C Compressor is On . . . . . . . . . . . . . . . . . . . . . . 7Battery Drain during Dinghy Towing . . . . . . . . . . . . 7Service Stability Message Condition . . . . . . . . . . . . 8Reduced Audio Volume from Rear Speakers . . . . . . 8Engine Bulletins Summary . . . . . . . . . . . . . . . . . . . . 8Inspect Grounds G100 through G107 for Electrical Conditions . . . . . . . . . . . . . . . . . . . . . . . . 8Car Issues Fix It Right the First Time . . . . . . . . . . 9Truck Issues Fix It Right the First Time . . . . . . . . . 9Service Know-How . . . . . . . . . . . . . . . . . . . . . . . . . 9

Customer Care and Aftersales

TECHLINEnewsSolving Service Programming System ErrorsService Programming System (SPS) errors that are received during pro-gramming may be the result of several different occurrences that can be solved without replacing the control module . Most errors can be resolved by follow-ing some basic troubleshooting steps .

Following are several specific SPS programming errors (E4398, E4399, E4403, E4404 E4413, E4414, E4423 or E4491, E4494) and how to resolve the issue .

E4398 No Calibration Data

This error is the result of a missing or incomplete data record . It is not related to the control module being programmed or a vehicle issue . Contact the Techline Customer Support Center (TCSC) .

E4399/E4403 Severe Error

These general programming errors are typically the result of a loss of com-munication between the programming device and the control module . The loss of communication can be caused by a drop in battery voltage, delay in communication with the module, or a

continued on page 4

No calibration error

continued on page 2

The 2014 Chevrolet Spark EV (Electric Vehicle) builds on the technology and innovation the Volt has brought to Chevrolet . The Spark EV does not have a gasoline engine or a gasoline fuel system . It is a five door, four passenger vehicle that is being sold only in California and Oregon .

The Spark EV uses GMs Global A electrical architecture, which is common with many other Chevrolet models, such as the Camaro, Cruze, and Volt . This requires the use of the Global Diagnostic System 2 (GDS 2) software and the Multiple Diagnostic Interface (MDI) module .

Electric Drive Unit

The propulsion of the Spark EV is achieved by an electric drive transmission . The transmission is a fully automatic, front wheel drive transaxle . It consists primarily of an 85kW drive motor, a planetary gear set, high voltage electric auxiliary transmission fluid pump and housing, a differential gear set, and two axles .

All Electric All the Time The 2014 Chevrolet Spark EV

2 July 2013

The 2014 Chevrolet Spark EV continued from page 1The planetary gear set provides fixed forward and reverse ratios . Changing speed and torque is fully automatic and is accom-plished through the use of a drive motor generator power inverter control module that receives and monitors various electronic sensor inputs and uses this informa-tion to vary the torque output to the drive axles based on throttle position .

360V High-Voltage Battery

The Spark EV is powered by a 21 .4 kilowatt hour (kW/h) lithium-ion high-voltage battery pack located beneath the vehicle, strad-dling the rear axle .

The heart of the Spark EV electric propulsion system is its ad-vanced Li-Ion drive motor battery system . The high-voltage (HV) battery is liquid cooled for long life and optimum performance . It contains 336 cells with a nomi-nal system volt-age of 369V DC . The battery cell groups are joined to form four equal sections .

Battery system diagnostics and system status is communicated from the hybrid/EV battery energy control module to the hybrid/EV powertrain control module 2 through serial data . The hybrid/EV powertrain control module 2 is the host controller for Diagnostic Trouble Code (DTC) information .

Driving the Spark EV

To start the Spark EV, with the vehicle in Park or Neutral, press the brake pedal and then press the POWER button on the center of the instrument panel .

The Remote Keyless Entry transmitter (key fob) must be in the vehicle to turn on the vehicle . If the transmitter battery is weak, a NO REMOTE DETECTED message may be displayed . To start the vehicle with the key, remove the rubber cap on the right side of the steering column and insert the key into the slot to start the vehicle . The key cylinder DOES NOT rotate . Press the POWER button to start the car .

To turn off the car, shift to Park and press the POWER button .

The Spark EV uses a 12V battery to wake up and initialize the control modules . If the vehicle does not power-up, ensure that the 12V battery is sufficiently charged . The 12V bat-tery, located in the front compartment, is an AGM (Absorbed Gas Mat) type that requires different charging voltages than conventional lead acid batteries .

TIP: When using essential tool EL-50313 (GR-8), select AGM when prompted or damage to the battery will result .

When driving the Spark EV, the transmission should be placed in the Drive (D) position for all normal driving conditions . This provides maximum efficiency and range economy and enables the drive unit to operate in a forward direction by electronically varying the output torque and speed of the electric motor .

The transmission can be placed in Low (L) for the feel of engine braking and to slow the vehicle once the throttle is lifted . While in the Low position, the vehicle will slow more quickly and use the motor to more aggressively collect energy during a regenerative braking event .

The Spark EV also features a Pedestrian Friendly Alert Function (PFAF) to alert those nearby of the vehicles presence . To acti-vate a friendly horn, pull the turn signal lever toward you like you are flashing the headlights . The alert will only work in Drive .

The PFAF also can be set to activate automatically . It is active in Drive and Reverse at speeds below 18 mph (28 km/h) . The sound is intended to be barely audible in the cabin .

Operating Characteristics

Due to the quiet nature of the Spark EV propulsion system, certain sounds will be apparent that may have been masked by a gasoline engines natural harmonics . Among them are the electric engine cooling fan, coolant pumps, the air conditioning com-pressor and the HVAC blower . The drive motor battery cooling system may be operational during charging or when the vehicle is powered down . This may be more evident when charging or during remote cabin conditioning .

An electric motor whine sound may be heard as the vehicle moves . This is a normal operating characteristic .

The Spark EV has a unique brake pedal feel . The hydraulic sys-tem is not the lone means of vehicle deceleration . Regenerative and hydraulic braking forces are blended, depending upon vehicle conditions .

The hydraulic braking system uses a high-speed electric motor/pump . Pump operation can sometimes be heard and felt in the brake pedal as the system builds pressure .

Drive unit components: 1. Drive motor generator

2. Planetary gears 3. Differential

4. Auxiliary transmission fluid pump 5. 3-Phase cable connections

continued on page 3

High-voltage battery

Remove the rubber cap on the steering column to start the vehicle with the key.

The key cylinder does not rotate.

July 2013 3

TIP: Over several braking events, drivers may perceive that they are applying a consistent brake force and yet the vehicle may decelerate at slightly different rates . This is a normal operating characteristic to maximize battery efficiency .

Charging

There are cur-rently two ways to charge the Spark EV: 120V outlet and 240V outlet .

The provided 120-volt AC portable vehicle charge cord is located in the storage com-partment under the cargo floor .

With the vehicle parked, press the Leaf button on the center stack to review the Charge Level Preference on the touch screen for the selected Charge Mode . There are three different charge modes: Immediate; Delayed based on departure time; and Delayed based on electric rate and departure time .

Select the Change Charge Level screen button if an increased charging level is desired . Once the charge level is selected, turn off the vehicle .

TIP: The Charge Level selection re-turns to the reduced level (8 amps) each time the vehicle is cycled on/off .

Do not use an extension cord when plugging the AC charge cord into an electrical outlet . Charge cord indica-tors should be green .

With the charge cord plugged into the vehicles charge port, the Charge Status Indicator on top of the instrument panel will illumi-nate . The Charge Status Indicator will be green and the horn will chirp when properly connected .

The Charge Status Indicator glows green or yellow to display the charging status . If there is no indicator, the drive motor battery charger cable is not working properly or is not connected .

Wheels and Tires

The 2014 Spark EV features low rolling resistance Bridges-tone ECOPIA tires . The sizes are P185/55R15 in the front and P195/55R15 in the rear, to handle the additional weight from the battery pack .

TIP: Because the tires are different sizes, they cannot be rotated front to back .

If the vehicle will be driven in snow or mud, all-season tires are recommended . Both front and rear tires must be replaced with all-season tires .

Special Tools and Technical Support

Essential tools will be shipped to selling and servicing dealers .

A specialized Technical Assistance Center (TAC) team has been established to provide diagnostic support for the Spark EV . All issues are encouraged to be reported to TAC .

Thanks to Kristin Curran, Chuck Wieseckel

Special safety precautions are required during service of the 2014 Spark EV .

To reduce the risk of severe shock and burns, treat all high voltage cables and connectors as though they are energized until it can be verified that they are not .

Always perform the High Voltage Disabling procedure outlined in the appropriate Service Information before servicing any High Voltage component or connection . The High Voltage Disabling procedure involves:

Identifyinghowtodisablehighvoltage

Identifyinghowtotestforthepresenceofhigh voltage

Identifyingconditionsunderwhichhighvoltage is always present and Personal Protection Equipment (PPE) and proper procedures must be followed .

Before working on any high voltage system, be sure to wear the following personal protection equipment:

Safetyglasseswithappropriatesideshields when within 50 feet (15 m) of the vehicle, either indoors or outdoors

Certifiedandup-to-dateClass0insula-tion gloves rated at 1000V with leather protectors

Visuallyandfunctionallyinspectthegloves before use

Weartheinsulationglovesatalltimeswhen working with the high voltage battery assembly, whether the system is energized or not

Thanks to Kristin Curran and Chuck Wieseckel

2014 Spark EV Safety Precautions

120-volt AC portable vehicle charge cord

Charge Status Indicator

Charging Volts Charging Time

120V 8 amps 12 amps

Greater than 20 hours Less than 20 hours

240V 7 hours

Light Indication

Solid green Vehicle charging

Fast flashing green Charging delayed

Slow flashing green Charging complete

Solid yellow Vehicle not able to accept charge

4 July 2013

2014 Spark EV Bulletin InformationThe following bulletins have been released to provide information about the Spark EV . Be sure to read each bulletin for full information .

11-08-49-001H Transport Mode On Message covers how to turn off Transport Mode .

PI1012 Spark EV New Model Features and Service Guide high-lights the operation and service features of the new Spark EV .

PI0994 Normal Characteristic Electric Parking Brake (EPB) Auto-Apply for System Self Test explains that the EPB will perform a self test if it has not been applied during the past 50 ignition cycles . This is normal operation and no service is required .

PI0985A High Voltage Battery Gauge Displaying Less Than Full Charge (10 Bars) explains that this

may occur at low battery tem-peratures (below 32F, 0C) and when charg-ing in cold ambient tempera-tures (less than 32F, 0C) at 240 volts . The vehicles control system must learn the state of charge of the new battery pack . This is accomplished by fully charging the battery pack . If a new battery pack is charged for the first time when the battery is less than 32F (0C), the control system is unable to complete the learn process . Repeated charge attempts or a warmer battery pack are required to finish the learn process .

PIC5880 Spark EV TAC Parts Restriction Program explains that certain listed components are on restric-tion through the TAC .

PIP5112 Spark EV High Voltage Drive Motor Battery Restriction and Exchange Process explains how to establish a case number and obtain authorization for replacing the drive motor battery . It also provides diagnos-tic information, safety procedures and service procedures to be followed for the exchange process .

Do not remove the Drive Motor Battery assembly covers unless instructed to do so by TAC or Engineering . The Drive Motor Battery may also be referred to as the Rechargeable Energy Storage System (RESS) . If the failure is due to one of the non-serviceable components, the battery will be exchanged .

TECHLINEnews

vehicle issue such as interruption on the BUS (wiring, connector issue, aftermar-ket components, etc .) .

Make sure a minimum of 12 .5 volts is maintained during programming . Attempt to re-establish communication with the control module using GDS2 or a Tech 2 . If communication can be established, reattempt programming using Replace and Program ECU as the programming method . If communica-tion cannot be re-established, deplete retained power by disconnecting the negative battery terminal for a minimum of five minutes . Re-establish and main-tain battery power, attempt to commu-nicate with the control module using the MDI or Tech 2 . Reattempt programming using Replace and Program ECU .

TIP: Some pre-2007 model vehicles may require using the Tech2 and the Legacy Tech 2 programming option in SPS in order to use a slower programming communication speed .

E4413/E4414 Calibrations marked with an ( * )

An asterisk ( * ) indicates that the SPS application is not recognizing the cali-

brations being read from the control module, which can be caused by a non-GM calibration programmed into the control module or an incomplete SPS data record .

Refer to the latest version of Bulletin #08-06-04-006 . If this bulletin does not apply, restart the SPS application and select Replace and Reprogram as the programming method . This procedure will overwrite the unidentified software and calibrations .

E4404/E4494 No Communication with Diagnostic Tool

This is a loss of communication between the programming device (MDI or Tech 2) and the Techline PC . It is not a mod-ule or vehicle problem .

Confirm the connection from the PC . If the programming device is connected by USB, select a different USB port on the

Techline PC . If using a wireless network for the MDI connection, confirm the wireless connection or switch to a USB connection . Disable the MDI wireless connection in the MDI wireless manager when using a USB connection .

If programming with a Tech 2, per-form a Tech 2 self-test, found in SPS under Settings > Diagnostics > Test Connections . Be sure to use a known good Techline PC serial port connector and RS232 cable .

Confirm and maintain proper battery voltage before attempting programming .

E4491/E4423 Programming Failed

These programming errors can occur from different areas . If encountered on a service module, confirm the correct part number is being used and confirm programming is possible by attempting to program the original module .

For assistance from TCSC, be sure to have the original and service module part numbers and error detail available .

If a programming error cannot be resolved, do not replace the control module before contacting TCSC . TCSC can be reached at 1-800-828-6860 (English) or 1-800-503-3222 (French) .

Thanks to Bob Kerzka

continued from page 1

continued on page 5

Check for a loss of communication with the programming device.

Solving Service Programming System Errors

High-voltage battery gauge

July 2013 5

Exterior Roof Panel SagA sag/depression area may appear on the roof of 2013 Express and Savana vans with 15 passenger seating (RPO ZP3) at times and then go away . This condition is most prevalent on dark colored vehicles . The affected area is 3 to 7 feet (0 .9-2 .1 m) from the rear edge of the roof with the deepest depression at 5 feet (1 .5 m) from rear edge .

The sag appears when the van is sitting outside in the sun and will go away when van roof surface cools down, but will reap-pear when parked back in the sun . This sag is most prevalent on the passengers side of the vehicle, but may also appear on the drivers side .

The sag on the roof is caused by an insufficient amount of (anti-flutter) sealer between the third and fourth roof bows and the outer panel . As the roof panel expands in the sunlight, the sealer does not expand as intended, causing the low areas to appear .

Remove the (anti-flutter) sealer in the affected area and install shim material . If possible, perform the repair in direct sunlight . This will cause the roof outer skin to expand and increase the gap between the roof panel and the roof bows for easier installation of the shim material .

TIP: Use care to not damage the roof outer sheet metal while cutting the sealer . Do not use utility knives, putty knives or any hard metal tools to cut the sealer material, which may create out dings in the roof panel .

The sealer can be cut using a wire windshield cut out tool . The loose sealer can be removed using a plastic trim stick or plastic putty knife .

Install 3/4 x 5/16 inch adhesive-backed foam shim stock and 3/4 x 7/16 inch adhesive-backed foam shim stock between the roof panel and the third roof bow and fourth roof bow . Position the 5/16-inch mate-rial closest to the outer end of the roof bow . The 7/16-inch mate-rial should be positioned toward the center of the roof bow .

Refer to #PI1005 for complete repair instructions and adhesive-backed foam shim stock information .

Thanks to Gary Kirrkamm

The sag may appear when the van is sitting in the sun.

Cut the sealer using a wire windshield cut out tool.

Position the 5/16-inch material closest to the outer end of the roof bow.

Finding Diesel Fuel Stations using XM Travel LinkThe new 2014 Cruze Clean Turbo Diesel model is available with XM Travel Link (subscription required) . XM Travel Link provides fuel loca-tions and prices as well as weather and other travel information . By configuring XM Travel Link to show fuel stations that sell diesel fuel, owners have access to a conve-nient list of local diesel fuel stations (omitting from the list those that do not .) .

To customize the menu to show only diesel fuel stations:

1 . From the main menu on the touch screen, select Fuel (the Fuel selection may be on the second or third page of the main menu depending on how the menu has been configured)

2 . Select Menu

3 . Select Fuel Type

4 . Select Diesel

Thanks to Tod Stump

Select the Fuel icon to access the fuel menu.

PIP5131 SPARK EV 1ET35 Drive Unit Exchange Program explains the exchange program for the Spark EV drive unit . It also pro-vides diagnostic information, safety procedures and service procedures to be followed for the exchange process .

Current serviceable Drive Unit-related compo-nents:

DriveUnit

Oilcoolerlines

Replacementsealsforoilcoolerjoints

ExternalwiringharnessfromthevehicletotheDrive Unit

DriveMotor/GeneratorPowerInverterModuleCable Housing Cover Seal

DriveUnitmount

Repairs involving any other Drive Unit components may require a Drive Unit exchange . Serviceable components are subject to change as the program progresses .

Thanks to Kristin Curran and Chuck Wieseckel

6 July 2013

Full Blower/Heat from Vents at Start-upWhen the 2013 Malibu with manual HVAC (RPO C67) is started, the HVAC blower may be at full speed and/or full heat may be coming from the vents . This intermit-tent condition may be present with the blower and temperature knobs in any position .

Reprogram the Electronic Climate Control Module (ECC) using the Service Program-ming System (SPS); select ECC Remote Heater and Air Condition Control Module Programming . Once completed, perform ECC Remote Heater and Air Condition Control Module Setup . Evaluate the performance of both systems .

Thanks to Christopher Crumb

Trunk-Mounted Radio Amplifier PerformanceOn some 2010-2013 LaCrosse; 2011-2013 Regal; 2013 ATS, XTS, Malibu; and 2014 Impala models equipped with a trunk-mounted radio speaker amplifier, the speakers may have intermit-tent poor audio quality, such as a buzz, pop, or static noise .

Check the trunk-mounted radio amplifier for any signs of moisture . Remove all connectors and inspect the terminals for corrosion .

If evidence of moisture is present, or it appears water may have run over the amplifier, inspect the rear sunroof drain tubes, if equipped, for leaks or blockage . Also water test the trunk, sunroof, back glass and roof areas . Repair any leaks identified .

Replace the amplifier if water is present and replace any corroded termi-nals that have corrosion .

Thanks to David Roat

Rattle or Thump Noise above 45 MPHA flutter or thumping noise may be heard on some 2011-2014 Cruze and 2012-2014 Verano models from the side or underneath of the vehicle at speeds of 45 mph and above . If this condition is present, check the air deflectors mounted on either side under the vehicle . Make sure that all fasteners are in place and secure . Replace any fasteners as needed .

If all fasteners are secure, it may be necessary to apply felt to the underbody of the vehicle above the inside edge of each air deflector (between each fastener loca-tion) to eliminate the noise .

TIP: If the customer makes frequent trips on a gravel road, it may be necessary to remove the deflectors, clean off any debris and reinstall before making any repairs .

Thanks to Christopher Crumb

Amplifier location on the Malibu

Apply felt to the underbody of the vehicle above each air deflector.

Connect Backup Alarm during PDIOn 2014 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the Backup Alarm (RPO 8S3), it may be noticed during PDI that the backup alarm is inoperative . The backup alarm also is available on the 2008-2013 Silverado and Sierra .

The backup alarm is inten-tionally left disconnected at the assembly plant . It must be connected at the dealership .

The alarm is located on the right rear of the frame and the chassis harness alarm connector is located on the left rear of the frame . Route the harness up and over the spare tire hoist tube and con-nect it to the backup alarm .

Thanks to Scott Fibranz

A. Backup Alarm/Connector B. Spare Tire Hoist Tube

July 2013 7

Insufficient Cooling when the A/C Compressor is OnThe 2012-2013 Equinox and Terrain equipped with the V6 engine (RPO LFX) may have erratic or insuffi-cient cooling when the A/C compressor is turned on .

This condition may be due to the A/C compressor not being torqued properly at the time of assembly, causing a load on the compressor shaft .

Loosen the A/C com-pressor mounting bolts and re-torque . The A/C compressor should be held tight/flush to the engine block during the final torque sequence to ensure proper align-ment . Refer to the appropriate Service Information for the A/C Compressor Mounting torque and tightening sequences .

After the compressor mounting bolts have been torqued, run the vehicle with the A/C on for a minimum of two minutes to ensure sufficient A/C performance .

Thanks to Doug Daugherty

Battery Drain during Dinghy TowingAfter several hours of dingy towing (i .e . being towed behind another vehicle with all four wheels on the ground), the battery of the 2010-2011 LaCrosse may be completely dis-charged . The reason for this is because the ve-hicles transmission must remain in Neutral and the ignition mode must remain in Accessory while dinghy towing the vehicle .

TIP: As stated in the vehicles owner manual, 2012-2014 LaCrosse models should NOT be dinghy towed .

For 2010-2011 LaCrosse models, the owner manual does not provide instructions on dinghy towing . The following procedures should be followed to avoid battery drain while dinghy towing a 2010-2011 LaCrosse .

Key Ignition Vehicles To prevent the battery from draining, remove fuse #22 (Discrete Logic Ignition Switch) from the instrument panel fuse block .

Pushbutton Ignition Vehicles To prevent the battery from draining, disconnect the negative battery cable from the battery .

In each of these cases, the vehicle should be securely connected to the tow vehicle and the transmission placed in Neutral before disabling the electrical system .

Thanks to David Roat

1. A/C compressor upper bolt 2. A/C compressor rear bolt

3. A/C compressor lower bolt

GM TechLink is published for all GM retail technicians and service consultants to provide timely information to help increase know-ledge about GM products and improve the performance of the service department .

Publisher:John Meade GM Customer Care and Aftersales

Editor:Lisa G . Scott GM Customer Care and Aftersales

Technical Editor:Mark Spencer /mspencer@gpstrategies .com

Production Manager:Marie Meredith

Desktop Publishing:5by5 Design LLC /dkelly@5by5dzign .com

FAX number: 3 1-248-729-4704

Write to: * TechLink PO Box 500 Troy, MI 48007-0500

GM TechLink on the Web: : GM GlobalConnect

General Motors service tips are intended for use by professional technicians, not a do-it-yourselfer . T hey are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle . Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely . If a condition is described, do not assume that the information applies to your vehicle or that your vehicle will have that condition . See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information .Inclusion in this publication is not necessarily an endorsement of the individual or the company .

Copyright 2013 General Motors All rights reserved .

A. Fuse 22 in the instrument panel fuse block

8 July 2013

Service Stability Message ConditionIf the 2013 LaCrosse, Regal, or Malibu dis-plays a Service Stability message on the Driver Information Center and has an illuminated ABS MIL, check for DTC C0800 Symptom 07 (Control Module Power Circuit High Voltage) . DTC C0800 may be set along with any of the following wheel speed sensor DTCs:

C0035(LeftFrontWheelSpeedSensor Circuit)

C0040(RightFrontWheelSpeedSensor Circuit)

C0045(LeftRearWheelSpeedSensorCircuit)

C0050(RightRearWheelSpeedSensorCircuit

TIP: Do not replace the Electronic Brake Control Module (EBCM) for DTC C0800 .

Diagnose and repair any wheel speed sensor fault before addressing DTC C0800 .

Thanks to Christopher Crumb

Engine Bulletins SummaryA summary of important engine-related bulletins and Preliminary Information (PI) has been recently released to help build awareness of the latest engine informa-tion available . The list provides a convenient resource for engine technicians when performing engine repairs .

In the Inspect Grounds article, in the second image caption, delete G104 with glue contamination . The caption should read: Clean or repair any poor connections .

Prior to beginning any repairs, its critical to always follow Strategy-Based Diagnostics and check the appropriate Service Information for any bulletins or PIs that may apply .

Thanks to the TAC team

Reduced Audio Volume from Rear SpeakersOwners of the 2011-2013 Cruze equipped with Premium Audio (RPO UQA) may notice a volume difference between the front and rear speakers .

With the Premium Audio option, the audio is filtered through the amplifier, which separates the high, midrange and low frequencies .

If this condition is present, compare the audio system operation with a like vehicle with the same RPO . Use the same music selection to get a good comparison between the two vehicles . If the comparison results are identical, no further repairs are necessary . This is a normal characteristic of the audio system .

Thanks to Christopher Hightower

Inspect Grounds G100 through G107 for Electrical ConditionsWhen diagnosing electrical conditions, such as no air condi-tioning; air conditioning performance; engine crank, no start; en-gine no crank; instrument panel cluster concerns, etc ., on some 2012-2013 Sonics, inspect grounds G100 through G107 .

If an electrical condition cannot be verified during diagnosis and/or if the appropriate Service Information does not easily isolate the cause, refer to the Service Information locations and inspect grounds G100 through G107 .

Check the grounds for any condi-tions may that affect electrical performance, such as glue contamina-tion, loose or disconnected, or poor termi-nal crimp or contact .

If necessary, follow the Measuring Voltage Drop procedure in the Service Information to determine if excessive voltage drop is present, which is also an indication of a poor ground connection .

Clean, repair and/or torque the ground as necessary and re-evaluate the concern .

Thanks to James Parkhurst

G104 with glue contamination Clean or repair any poor connections.

July 2013 9

Car Issues Fix It Right the First Time

Model Year(s) Vehicle Line(s)/Condition Do This Dont Do This

Reference Information/Bulletin

2013 Sonic Unable to make a call using phone icon on radio

Reprogram the radio using the SPS with the latest calibrations available on TIS2Web .

Replace the radio . PI0953

2012-2013 Sonic Hatchback liftgate will not open using remote key fob and touchpad

New software update . Replace BCM . PI0945

2012-2013 Sonic Engineering Information Front compartment (underhood) fuse block replacement

Engineering phone call . Replace UBEC . PIE0252

2013 ATS Front brake squeal or squeak noise intermittently on initial brake applies

Apply grease as specified . Replace brake pads or rotors . PI0917A

2013 ATS Driver or passenger power seatback recliner stuck and/or will not recline

Free the recliner following this procedure .

Replace the seat back frame . PI0948A

2013 ATS Engineering Information Active grille aero shutter malfunction

Call engineer before work on aero shutter if DTCs P069E and P059F or P069E and U0284 are present .

Grab or attempt to move the shutter louvers, disassemble the shutter assembly, or remove the actuator from the shutter assembly .

PIE0256

2011-2013 Trax, Sonic, Cruze, Encore Diagnostic tips for front cover oil leak

Use oil dye to determine the leak location and repair as necessary .

Replace front timing chain cover for oil leak .

PI0957

2012-2013 Cruze Pulsating/rotational noise from right rear of vehicle on brake apply

Replace right rear brake drum, shoes, and apply high temp grease .

Don't turn the drum . PI0887B

2010-2014 LaCrosse, Verano, Sonic, Regal, Malibu, Impala, Cruze Intermittent unwanted trunk opening while vehicle is parked

Install "2-Shot" trunk relay per PI . Replace any other component .

PI0924

Truck Issues Fix It Right the First Time

Model Year(s) Vehicle Line(s)/Condition Do This Dont Do This

Reference Information/Bulletin

2011-2013 Captiva Engine no crank/no start and/or inoperative HVAC control

Replace module with new part number known .

Use the old part number . PI0944A

2012-2013 Captiva Engineering Information Power rear door lock difficult to operate, binds

Call the Engineer prior to repair . Repair car prior to calling the engineer .

PIE0244A

2012 Traverse, Acadia Left rear side door molding loose at front edge, contacting rear edge of left front door or door side molding

Modify molding before installing . Use the locator on the molding to align the molding .

PI0947

2007-2014 Enclave, Acadia, Outlook Diagnostic Tip DIC switch buttons are inoperative

Remove battery power to the IPC after service is performed to either the DIC switch or the IPC for return of DIC function .

Replace multiple modules for DIC function to return .

PIT4534D

2013 Traverse, Acadia, Enclave Diagnostic Tip No communication with the right side blind zone module

Follow instructions for programming module .

Replace multiple modules because of inability to communicate .

PIT5211

Customer Care and Aftersales Service

Know-How

10213.07D Emerging Issues

To view Emerging Issues seminars: Logintowww.centerlearning.com

Select Resources, and then Video on Demand; or Select Catalog to search for the course number, and then

select View > Take or Continue Course

July 11, 2013

1

Important Bulletins and PIs for Engine Technicians

This listing is based on information available as of June 15, 2013. Follow strategy-based diagnostics and check the Service Information for the latest bulletins and PIs.

Engine RPO Models Bulletin/PI Subject

4 CYL

1.4 LUV/LUJ

2011 Chevrolet Cruze PIP5036D Possible oil consumption or blue smoke from the exhaust CEL or fuel trim codes

2011 2012 Chevrolet Cruze 2012 Sonic

PI0851A Turbocharger oil feed and return line inspection when servicing turbocharger assembly

2011-2012 Chevrolet Cruze PI0850 Whistle noise heard from engine compartment, rough idle and/or DTC P0171 set

1.6 LXV 1.8 LUW/2H0

2009-2011 Chevrolet Aveo 2011-2013 Chevrolet Cruze 20122013 Chevrolet Sonic 2009-2010 Pontiac Wave/G3 2008-2009 Saturn Astra

PIP4977A Diagnostic Tip - Information regarding oil flow and the oil restrictor orifice in the engine block deck

2009-2011 Chevrolet Aveo 2011-2012 Chevrolet Cruze 2012 Chevrolet Sonic 2009-2010 Pontiac G3, Wave

PI0725 Normal engine cylinder bore marks

2009-2011 Chevrolet Aveo 2011-2013 Chevrolet Cruze 2012-2013 Chevrolet Sonic

PI0867 Intermittent engine no crank, intermittent exhaust Camshaft Position (CMP) sensor signal

1.8 LAY 2009 Pontiac Vibe AIP3423 MIL on after CMP actuator gear replacement

2.0L LTG 2013 Cadillac ATS 2013 Chevrolet Malibu

PI0768C Engine exchange

2.4 LAF/LUK/LEA 2011-2012 Buick LaCrosse, Regal 2011-2012 Chevrolet Equinox 2011-2012 GMC Terrain

PI0562F Cold start rattle noise

2.4 LAF 2010-2011 Buick Lacrosse 2011 Buick Regal 2010-2011 GMC Terrain

PIP5025A Oil consumption

2.4 LAF 2010 Buick LaCrosse 2010 Chevrolet Equinox 2010 GMC Terrain

PIP4872 MIL on with P0171 P0089 and/or P228d and high fuel pressure after engine replacement

2.5L LCV 2013 Cadillac ATS 2013 Chevrolet Malibu

PI0768C Engine exchange

2.5 LKW 2014 Chevrolet Impala PIP5106 Engine exchange

2

Engine RPO Models Bulletin/PI Subject

6 CYL

All HFV6

2013 Cadillac ATS 2007-2013 Cadillac CTS 2007-2013 Cadillac SRX 2007-2011 Cadillac STS 2013 Cadillac XTS 2007-2013 GMC Acadia 2010-2013 GMC Terrain 2007-2009 Pontiac G6 2007-2010 Saturn Outlook 2007-2009 Saturn Aura 2007-2013 Buick Lacrosse, Allure (Canada only) 2008-2013 Buick Enclave 2008-2010 Saturn Vue 2010-2013 Chevrolet Camaro 2012-2013 Chevrolet Impala 2008-2012 Chevrolet Malibu 2008-2013 Chevrolet Equinox 2009-2013 Chevrolet Traverse 2008-2009 Pontiac Torrent

PIP4384G Supplement to SI timing procedure for high feature V-6 engine

3.0 LF1/LFW 3.6 LFX/LLT

2011-2013 Buick Enclave 2011-2013 Buick LaCrosse 2013 Cadillac ATS 2011-2013 Cadillac CTS 2011 Cadillac STS 2011-2013 Cadillac SRX 2013 Cadillac XTS 2011-2013 Chevrolet Camaro 2012-2013 Chevrolet Caprice PPV 2012-2013 Chevrolet Captiva Sport 2011-2013 Chevrolet Equinox 2012-2013 Chevrolet Impala 2011-2013 Chevrolet Traverse 2011-2013 GMC Terrain

PIP4959C Cold start misfires

LY7, LLT

2008-2011 Buick Enclave 2007-2011 Chevrolet Malibu 2009-2011 Chevrolet Traverse 2007-2011 GMC Acadia 2007-2010 Saturn OUTLOOK

PI0746C Poor acceleration, throttle body freezing, multiple DTCs set, ice deposits and/or oil deposits present in air inlet duct

3

Engine RPO Models Bulletin/PI Subject

6 CYL

ALL HVV6 3.5 /3.9

2009-2011 Buick Lucerne 2006 Buick Rendezvous 2005-2006 Buick Terraza 2007-2011 Chevrolet Impala 2007-2010 Chevrolet Malibu 2006-2007 Chevrolet Monte Carlo 2005-2006 Chevrolet Uplander 2005-2008 Pontiac G6 2005-2006 Pontiac Montana SV6 2007-2008 Saturn Aura 2005-2006 Saturn Relay 2007 Saturn Vue

PIP5064C Rough running - idle surge - CEL on or CMP actuator codes after installation of reman HVV6

4.3LVIN H RPO LV3

2014 Chevrolet Silverado, GMC Sierra PIP5114 Engine exchange

4.6 LHU 2007 - 2009 Cadillac SRX, STS, XLR PIP4577M SES light with DTCs P0171 and P0174 - Possible air leaks

L52/LL8/LLR/LK5/LLV

2004-2009 Chevrolet TrailBlazer 2004-2011 Chevrolet Colorado 2004-2011 GMC Envoy 2004-2011 GMC Canyon 2004-2009 Hummer H3

PIP3694E Belt noise rough idle and/or SES light with DTC P0014 and/or P0017 - Inspect CMP actuator solenoid and crankshaft end play

2006 - 2009 Buick Rainier 2006 - 2011 Chevrolet Colorado 2006 - 2009 Chevrolet TrailBlazer 2006 - 2011 GMC Canyon 2006 - 2009 GMC Envoy

PIP4913 SES light intermittent DTC P0017 after cylinder head replacement engine oil debris contamination

5.3LVIN C RPO L83 2014 Chevrolet Silverado, GMC Sierra PIP5114 Engine exchange

L76, L77, L94, L99, LC9, LFA, LH6, LMG, LS 4, LY5, LZ1

2008 - 2009 Buick LaCrosse, Allure (Canada Only) 2007 Buick Rainier 2007 - 2012 Cadillac Escalade 2010 - 2012 Chevrolet Camaro SS 2007 - 2012 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2006 - 2009 Chevrolet Trailblazer 2006 - 2009 Chevrolet Impala SS 2006 - 2007 Chevrolet Monte Carlo SS 2006 - 2009 GMC Envoy 2007 - 2012 GMC Sierra, Yukon 2008 - 2009 Pontiac G8 2005 - 2008 Pontiac Grand Prix GXP 2006 - 2009 Saab 97x

PIP4568L Tick noise and/or misfires on AFM cylinders 1 4 6 and/or 7

4

Engine RPO Models Bulletin/PI Subject

8 CYL

L94, L99, LZ1, LC9, LH6, L76, L92, LFA, LMG, LY5

2007-2011 Cadillac Escalade Models 2007-2011 Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe 2010-2011 Chevrolet Camaro 2007-2011 GMC Sierra 1500, Sierra Denali, Yukon Models 2008-2009 Pontiac G8 GT

10-06-01-008I

Oil consumption AFM engines

V8 engine

2004-2007 Buick Rainier 2008-2009 Buick LaCrosse, Allure (Canada Only) 2006-2013 Cadillac CTS-V 2002-2013 Cadillac Escalade 2010-2013 Chevrolet Camaro 2011-2013 Chevrolet Caprice 2002-2013 Chevrolet Avalanche 1999-2013 Chevrolet Express, Silverado, Suburban, Tahoe 2009-2013 Chevrolet Colorado 2003-2009 Chevrolet Trailblazer 2006-2009 Chevrolet Impala SS 2006-2007 Chevrolet Monte Carlo SS 2003-2006 Chevrolet SSR 2005-2013 Chevrolet Corvette 2009-2013 GMC Canyon 2003-2009 GMC Envoy 1999-2013 GMC Savana, Sierra, Yukon 2003-2010 Hummer H2 2008-2010 Hummer H3 2008-2010 Pontiac G8 2005-2006 Pontiac GTO 2005-2008 Pontiac Grand Prix GXP 2005-2009 Saab 97x

PIP4138M SES light, misfire, DTC P0300, and/or a chirp, squeak, squeal, or tick noise

6.0 LC8

2012 Chevrolet Express 2012 GMC Savana

PI0802 Fuel gauge inoperative, P0463 DTC set, Malfunction Indicator Lamp (MIL) light on, fuel gauge drops to empty after 1/2 tank

2013 and Prior GM Passenger Cars and Trucks 01-00-89-010I

Comeback prevention information and using Customer Concern Verification Sheets (CCVS)

2011 Chevrolet Express 2500, 3500 Cargo Vans 2011 GMC Savana 2500, 3500 Cargo Vans

PI0528A Intermittent engine flutter during hard braking maneuver, engine hard to start

5

Engine RPO Models Bulletin/PI Subject

8 CYL

LFA, LY2, L20, LMG LC9, LH6, LMF, LH8 LH9, L76, LS2, LY5, LY6, L92, L96 LZ1, L94, L9H

2008-2011 Cadillac Escalade Models 2009-2011 Cadillac Escalade Two-Mode Hybrid 2008-2009 Chevrolet TrailBlazer 2008-2011 Chevrolet Avalanche, Colorado, Express, Silverado, Suburban, Tahoe 2008-2011 Chevrolet Tahoe Two-Mode Hybrid 2009-2011 Chevrolet Silverado Two-Mode Hybrid 2008-2009 GMC Envoy 2008-2011 GMC Canyon, Savana, Sierra, Sierra Denali, Yukon Models 2008-2011 GMC Yukon Two-Mode Hybrid 2009-2011 GMC Sierra Two-Mode Hybrid 2008-2009 HUMMER H2 2008-2010 HUMMER H3

11-06-04-007c

Malfunction Indicator Lamp (MIL) illuminated, reduced engine power message displayed, DTC P2135 set

DIESEL 2.0 (LUZ) 2014 Chevrolet Cruze PIP5116 Engine exchange

6.6 LLY

2004-2005 Chevrolet Silverado 2500HD, 3500 2004-2005 GMC Sierra 2500 HD, 3500 2004-2005 Chevrolet Kodiak 2004-2005GMC TopKick

PIP3129B Smoke, fuel knock, surging and high injector balance rates

20042005 Chevrolet Silverado 20042005 Chevrolet Kodiak C4500/C5500 Series 20042005 GMC Sierra 20042005 GMC Topkick C4500/C5500 Series

05-06-04-047B

Service Engine Soon (SES) light on with reduction in engine power, DTCs P0202 and P2149 or P0207 and P2146 or P1294 set (Install revised 90 degree injector connector w/harness support bracket kit)

2004-2009 Chevrolet Express, Kodiak, Silverado, Silverado Classic 2004-2009 GMC Savana, Sierra, Sierra Classic, Topkick

PIP4629A Diesel engine turbo DTC P2563 or P003A

6.6L ( LGH, LML)

2010 - 2013 Chevrolet Express 2010 - 2013 GMC Savana 2011 - 2013 Chevrolet Silverado 2011 - 2013 GMC Sierra Equipped with the 6.6 Duramax Diesel Engine (RPO codes LML and LGH)

PIP5088 6.6L Duramax diesel engine (RPO LGH and LML) part number 12638502

6

Engine RPO Models Bulletin/PI Subject

DIESEL

6.6 LMM

2007-2009 Chevrolet Kodiak, Silverado 2007-2009 GMC Sierra, Topkick

PIP4516D Light and medium duty trucks EGR DTC P0401

20062007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic

08-06-04-029C

LBZ, LLY, LMM MIL/SES Light On, DTC P0087-Fuel Rail Pressure (FRP) too low, lack of performance, no power, engine runs rough, no start (diagnose fuel system components)

2001-2007 Chevrolet Silverado Classic 2001-2007 GMC Sierra Classic 2007-2009 Chevrolet Silverado 2007-2009 GMC Sierra

PIP4526 Diesel engine fuel line repairs

6.6 LML

2011 - 2013 Chevrolet Silverado and GMC Sierra PIP5007A Exhaust fluid quality poor message difficult to clear

2010-2011 Chevrolet Express, Silverado PIP4829B Service exhaust fluid message will not clear

2010-2011 GMC Savana, Sierra PIP4949C Duramax diesel hard start no start or DTC P0087 injection pump replacement

ALL ENGINES All engines 2013 and Prior GM Passenger Cars and Trucks 00-06-01-

012D Use of surface conditioning disks when cleaning engine gasket sealing surfaces and/or reused engine parts