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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
21-NA-1812023-09-09. Service bulletin. POWER TRAIN. This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.
15-00-89-004F2023-09-08. Service bulletin. STEERING; SUSPENSION; ENGINE AND ENGINE COOLING; POWER TRAIN. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
21-NA-1692023-09-06. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION. This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves.
17-NA-0662023-07-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
PIP59272023-07-17. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This Preliminary information communicates the possibility of reduced power with dtc P0237 and/or p0299 due to damaged Charge Air Inlet Pipe connection at Turbocharger
04-07-30-013E2023-06-19. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.
08-07-30-026H2023-06-06. Service bulletin. POWER TRAIN. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
PIT5887C2023-05-15. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN. This preliminary information discusses an intermittent power up but no crank concern that could be the B+ stud on the starter oxidation.
PI0281J2023-05-04. Service bulletin. POWER TRAIN; STEERING; STRUCTURE; SUSPENSION; ENGINE AND ENGINE COOLING. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
08-07-30-035G2023-04-22. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
PIT59942023-04-17. Service bulletin. AIR BAGS; POWER TRAIN. This Preliminary information communication provides information to the technician with diagnostic tips for diagnosing reduced or low engine power with no Driver Information Center messages, that may be caused by an inaccurate brake pedal position sensor.
PIT5887B2023-04-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This preliminary information discusses an intermittent power up but no crank concern that could be the B+ stud on the starter oxidation.
PIP5885A2023-03-13. Service bulletin. POWER TRAIN. This Preliminary information communicates possible transmission fluid leak underneath the vehicle that may be root cause as a trans not being cleaned after production.
99-04-20-002N2023-03-03. Service bulletin. POWER TRAIN. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
18-NA-0352023-02-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information on a normal characteristic of a transmission that will not shift into overdrive range during cold ambient temperatures.
16-NA-3382023-01-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
20-NA-1382022-12-06. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
PIP58852022-11-21. Service bulletin. POWER TRAIN. This Preliminary information communicates possible transmission fluid leak underneath the vehicle that may be root cause as a trans not being cleaned after production.

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