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Service bulletins for the 2018 Chevrolet Volt

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

850 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PI0754C2018-05-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. This PI bulletin provides information on Rear and Side Tempered Glass Spots (Quench Marks) and they are normal characteristic.
PI0281G2018-05-21. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
150603002M2018-05-21. Service bulletin. EQUIPMENT. This bulletin provides information on approved warranty part numbers for original equipment batteries.
150603002L2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
130089010B2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information to dealership personnel on policies regarding a Product Assistance Claim (PAC) within the Courtesy Transportation Assistance Program.
1208132001E2018-05-21. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin explains to the dealer how to cover a possible customers mistake when a fuse has been blown.
080730035C2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
18NA0992018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim.
PIP5321F2018-05-21. Service bulletin. POWER TRAIN. 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.
PIC63302018-05-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates is to commuate teardown finds. As we move away from Transmisison Replacements to internal service.
PIC6262B2018-05-21. Service bulletin. ELECTRICAL 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.
PIT5411L2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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.
18NA0962018-05-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL. This Bulletin provides information for clearing DTC U016B that was inadvertently set when the Technician was servicing the vehicle.
18NA0892018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). 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.
18NA0872018-05-21. Service bulletin. ELECTRICAL SYSTEM:HORN; EQUIPMENT:ELECTRICAL. This informational bulletin provides information on Phantom Three Beeps or Horn Chirps Heard After Turning Off Vehicle and that it should be considered normal.
110849001W2018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.
110089002C2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin was created to inform that any accessories that are installed from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be covered for a full year (12 months).
060089031E2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
030089006P2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
010310003Q2018-05-21. Service bulletin. TIRES. 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.
000089027J2018-05-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information to dealership personnel on properly eliminating unwanted odors in vehicles.
17NA2152018-05-21. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to properly reprogram an onstar module to correct a condition of Red LED, No WiFi Operation, and/or Limited OnStar® Module Functionality After OnStar Module Replacement for Another Condition.
110089005L2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm.
090604015C2018-05-21. Service bulletin. ENGINE. This informational bulletin provides a revision for 09-06-04-015B (Vehicles Sitting Outside on Dealer Lots for Extended Periods with Hard Start/No Start Condition) to add the 2015-2018 model years.
030603004W2018-05-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.