2018 Chevrolet Volt Technical Service Bulletins

850 technical service bulletins (TSBs) are on record for the 2018 Chevrolet Volt. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10147361Oct 9, 2018Electrical system, Engine cooling, Engine. This Preliminary Information communication advises the technician that the drive motor generator control module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10147360Oct 9, 2018Engine. This Preliminary Information communication provides information to the technician about vehicles that have unwanted engine flairs while the vehicle is at steady state speed or while the vehicle is slowing. Dealer should communicate to the customer this behavior is a normal operating characteristic of the 5ET50/MKV drive unit.
• 10147359Oct 9, 2018Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review the latest version of PIP5321 for the Volt and PIP5390 for the Malibu.
• 10147348Oct 3, 2018Fuel system. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
• 10147340Oct 1, 2018Transmission and drivetrain. This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, and P1E22. Technician will need to replace the transmission. Technician will need to review the latest version of PIP5321 for the Volt and PIP5390 for the Malibu.
• 10147339Oct 1, 2018Electrical system. This Preliminary information communicates more information to help diagnoseP1AEE and P1AEF. It Gives 3 possible reason for the codes to set and areas to look.
• 10145495Sep 19, 2018Electrical system. This Preliminary Information communication advises the technician on the steps to diagnose the concern and the steps to repair the concern. Customer states that they are unable to select delayed or delayed/rate based charging. They will also state that the buttons that show up on the energy screen are greyed out.
• 10145494Sep 18, 2018Electrical system. This Preliminary Information communication advises the technician that the accessory power module is being placed on part restriction. Dealer will need to call General Motors Technical Assistance Center for part replacement authorization.
• 10207717Sep 6, 2018Electrical system. Emission Recall. Customer Mailing completed September 4, 2018.
• 10144480Aug 30, 2018Electrical system. This Preliminary Information communication advises the technician the Battery Charge Module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10144479Aug 29, 2018Electrical system. This Preliminary Information communication advises the technician that the High Voltage Drive Motor Battery hasbeen placed on part restriction by General Motors Technical Assistance. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10144476Aug 28, 2018Equipment. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
• 10144475Aug 28, 2018Engine cooling, Engine. This Preliminary Information communication provides information to the technician related to vehicles that have a Malfunction Indicator Lamp on. A technician may find Diagnostic Trouble Code P050D set as current or history. The technician is advised to first perform the SI diagnostic. That if the diagnostic fails to isolate the concern, then replace only the exhaust side SHLA's (Stationary Hydraulic Lash…
• 10144470Aug 24, 2018Transmission and drivetrain, Electrical system. This Preliminary Information communication advises the technician the 5ET50 electric variable automatic transmission assembly and component is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10144465Aug 20, 2018Equipment. This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for preparation & washing of the bright aluminum moldings.
• 10144451Aug 8, 2018Engine. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
• 10145170Aug 7, 2018Engine cooling. 18239 - Emissions Recall - General Motors has decided to conduct a Voluntary Emission Recall involving certain 2018 model year vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may…
• 10143776Jul 23, 2018Engine cooling. This Preliminary Information communication advises the technician that the drive motor generator control module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10143758Jul 9, 2018Equipment. This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. There are pictures of all the individual modules for identification purposes.
• 10143752Jul 3, 2018Visibility (wipers, defrost, mirrors). This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
• 10143449Jun 20, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
• 10143443Jun 14, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
• 10143429Jun 11, 2018Engine, Electrical system. This Preliminary Information communication provides the technician with steps on how to program an Engine Control Module when getting a Service Programming System error code E4491 or E4423. In some cases Techline Customer Support Center may need to be contacted to resolve the issue.
• 10143427Jun 8, 2018Equipment. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10141371May 23, 2018Equipment, Electrical system. This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
• 10141363May 17, 2018Transmission and drivetrain. This Preliminary Information communication advises the technician the 5ET50 electric variable automatic transmission assembly and component is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10141354May 15, 2018Equipment, Engine cooling. This Preliminary information communicates the possibility of the timing chain tesnioner gasket being improperly installed or mis-positioned after major engine repairs causing a low engine oil pressure and dtc p06DE.
• 10141351May 11, 2018Forward collision avoidance. This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
• 10137599Apr 27, 2018Equipment. This informational bulletin provides information on Audio Volume Stuck High or Low with No DTCs and that this is a normal characteristic.
• 10137523Apr 27, 2018Transmission and drivetrain. This Preliminary Information communication advises the technician the 5ET50 electric variable automatic transmission assembly and component is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance Center for further assistance.
• 10137519Apr 27, 2018Transmission and drivetrain. This Preliminary information communicates is to commuate teardown finds. As we move away from Transmisison Replacements to internal service.
• 10137598Apr 26, 2018Electrical system, Equipment. This technical bulletin provides a procedure to replace the HMI module to correct a condition of Radio Control (ICS) Display Does Not Remain Off at Times after it Has Been Turned Off in the Radio Settings Menu due to a software concern.
• 10137595Apr 26, 2018Equipment. This technical bulletin provides a procedure to test the radios receiver if certain XM channels cut out (mutes) depending on location of the vehicle.
• 10137559Apr 25, 2018Equipment. This bulletin provides information on approved warranty part numbers for original equipment batteries.
• 10137516Apr 23, 2018Electrical system. This Preliminary Information communication advises the technician that the Cabin Heater Control Module part number 22816851 and 84351883 will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact for further assistance.
• 10137556Apr 20, 2018Electrical system. This informational bulletin explains to the dealer how to cover a possible customers mistake when a fuse has been blown.
• 10137589Apr 19, 2018Engine cooling. This informational bulletin provides information for engine oil life monitor operation calculation.
• 10137562Apr 13, 2018Visibility (wipers, defrost, mirrors). This PI bulletin provides information on Rear and Side Tempered Glass Spots (Quench Marks) and they are normal characteristic.
• 10137495Apr 10, 2018Equipment. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10137558Apr 9, 2018Equipment. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
• 10137554Apr 9, 2018Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10137560Apr 6, 2018Body and structure. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10137537Apr 4, 2018Equipment. This informational bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim.
• 10137557Apr 3, 2018Equipment. This informational bulletin provides information to dealership personnel on policies regarding a Product Assistance Claim (PAC) within the Courtesy Transportation Assistance Program.
• 10137427Mar 29, 2018Equipment. This Bulletin provides information for clearing DTC U016B that was inadvertently set when the Technician was servicing the vehicle.
• 10137383Mar 28, 2018Transmission and drivetrain, Engine. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
• 10137386Mar 27, 2018Electrical system, Equipment. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off.
• 10137381Mar 26, 2018Tires. This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (in Canada, the Base Warranty Coverage). For vehicles within this warranty period, defective tires will be replaced on a pro rata adjustment basis according to the published distance-based schedule.
• 10137422Mar 22, 2018Engine cooling. This informational bulletin provides information for higher mileage Volts that are having the EGR cooler being plugged not allowing sufficient flow with DTC being set.
• 10137194Mar 22, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that in the radio settings some of the vehicle personalization selections within the Comfort and Convenience menu are missing at times. Technician will need to perform a scan for Diagnostic Trouble Codes. Technician will need to follow published Service Information diagnostics if there are Diagnostic Trouble Codes…

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