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Service bulletins for the 2018 GMC Terrain

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.

1345 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
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.
18NA0572018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin explains to the technician not to replace parts if the codes listed have been set.
18NA0542018-05-21. Service bulletin. POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to replace the transmission valve body separator plate for an upshift condition.
18NA0512018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to update the radio with the latest calibrations to correct a condition of TTY Phone Feature Icon Missing from Radio Display Setting due to a software abnormality.
18NA0422018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. This technical bulletin provides a procedure on reprogramming the ICS to correct a condition of Air Filter Life Check System Message Displayed due to a software anomaly.
18NA0412018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to reprogram the HVAC module to correct a condition of HVAC Inoperative during Remote Start Event with Accessory Remote Start Kit due to a calibration concern.
17NA4052018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This technical bulletin provides a procedure to replace the radio to correct the condition of Intermittent White Radio Screen When Starting Vehicle and/or Radio Resets Shortly After Start-Up with a Phone Paired due to an internal radio concern.
18NA0802018-05-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. This technical bulletin provides a procedure on how to install an oil heater on the oil pan and how to route/mount the wiring harness.
18NA0732018-05-21. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Bulletin provides graphics, information and guidelines for engine component wear that require repair and not engine replacement.
17NA4112018-05-21. Service bulletin. STRUCTURE; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of the headliner sagging at the front.
PIC63262018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates to the technician that GM is investigating a condition of a red OnStar LED. The technician is advised what DTC codes may be present, and not to replace any components at this time. Further information will be provided when the investigation is concluded.
PIT5411K2018-05-21. 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.
PIC63252018-05-21. 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, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance. When the Technician is working on the Regular Production Option Code (IOR) radio, the Technician should review the Diagnostic Starting Point Chart
17396 (Bulletin2018-05-07. Service bulletin. TRAILER HITCHES; EQUIPMENT. 17396- Customer Satisfaction. Certain vehicles were supplied with a vehicle owner manual that overstates the intended un-braked trailer weight by up to 1000 lbs. Dealers should print and insert the revised owner manual page(s) included in this bulletin.
PIE04362018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. This engineering information is requesting information from the field on vehicles that have the condition of Speaker Rattle, Speaker Crackle, Poor Sound Quality, Speaker Pop, or Speaker Distortion.
070849020M2018-04-23. Service bulletin. EQUIPMENT. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
17NA3302018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. This informational bulletin provides information for the customer to pair their phone in order for the push to talk button on the steering wheel control to work.
150603002H2018-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
150089005A2018-04-23. Service bulletin. EQUIPMENT; ENGINE. This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only).
150089004B2018-04-23. Service bulletin. EQUIPMENT. This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage.
174652018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 17465 - Service Update. Certain vehicles equipped with air conditioning (RPO C4P or C67) and Engine Remote Start (RPO BTV) or Accessory Remote Start Kit (RPO S6P), when outside temperatures are below 42 degrees F (6 deg. C) may have a condition in which the heating, ventilation, air conditioning (HVAC) blower motor and defrost will not operate during an engine remote start event. Reprogram the HVAC control module.
PIT5607A2018-03-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This preliminary information was created to express that engineering is investigating the issue of a service engine soon lamp on and a code P050F low vacuum code storing.
PIP5512B2018-03-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates that the restriction for the GF9 trans assembly has ended.
PIT5411J2018-03-12. 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, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIC63222018-03-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This PI was created to inform the customer of a possible concern with phone contacts not being listed when using bluetooth. The bulletin provides information and a work around while Engineering investigates

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