Service bulletins for the 2021 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.
696 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 00-03-10-002M | 2024-08-13. Service bulletin. WHEELS. This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels. |
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| 16-NA-158 | 2024-08-13. Service bulletin. UNKNOWN OR OTHER. This service bulletin describes the U.S. Dealer Special Tool Loan Program process. |
| PIT5195H | 2024-08-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle. |
| 17-NA-157 | 2024-07-30. Service bulletin. ENGINE. This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter. |
| 99-04-20-002O | 2024-07-30. Service bulletin. POWER TRAIN. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. |
| 21-NA-268 | 2024-07-16. Service bulletin. SERVICE BRAKES; ENGINE. This service bulletin provides diagnostic/repair information to correct customer concerns of a Crank No Start or Extended Crank, Malfunction Indicator Lamp (MIL) Illuminated or Possible Increased Brake Pedal Effort. |
| 16-NA-383 | 2024-07-16. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| 04-06-04-051I | 2024-07-16. Service bulletin. FUEL/PROPULSION SYSTEM. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive. |
| 22-NA-070 | 2024-07-12. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 22-NA-018 | 2024-07-12. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only). |
| 18-NA-099 | 2024-07-12. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 18-NA-125 | 2024-06-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation. |
| 24-NA-098 | 2024-06-25. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information. |
| 21-NA-276 | 2024-06-24. Service bulletin. POWER TRAIN; ENGINE; ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct a customer concern of Starter Not Cranking Engine, Starter Inoperative, Grinding Noise When Starting. |
| 21-NA-068 | 2024-06-22. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ. |
| 20-NA-016 | 2024-06-22. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle. |
| 18-NA-020 | 2024-06-18. Service bulletin. ENGINE; STRUCTURE:BODY. This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227. |
| 23-NA-064 | 2024-06-10. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships. |
| 18-NA-125 | 2024-06-08. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides information for engine oil life monitor operation calculation. |
| 16-NA-119 | 2024-06-07. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. |
| 08-07-30-035H | 2024-06-07. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 22-NA-070 | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 18-NA-067 | 2024-05-31. Service bulletin. WHEELS. This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels. |
| 09-00-89-008G | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process. |
| 23-NA-154 | 2024-05-31. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.