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.
By type
By component
By trouble code
By topic
| PIC6402B | 2020-05-11. Service bulletin. EQUIPMENT. This Preliminary information communicates a workaround that will lessen the occurrence of the XM presets greying out (19-NA-249) until Engineering comes up with a permanant repair. |
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| PIT5739 | 2020-05-11. Service bulletin. STEERING; ELECTRICAL SYSTEM. This preliminary information discusses the possibility of a momentary loss of steering assist and ABS or stability system messages possibly caused by a battery concern. |
| PIC5650G | 2020-05-11. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies. |
| PIT5195F | 2020-05-11. 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. |
| PIP5647A | 2020-05-11. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level will be found over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. Small gas engines (SGE) May only have the engine oil level over full and have a fuel odor. It will be found that the Engine oil is diluted with fuel. This concern is caused by marshalling the vehicle around the lot before it is sold and/or short driver cycles. |
| 990089019S | 2020-04-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. |
| 100089005I | 2020-04-27. Service bulletin. EQUIPMENT:ELECTRICAL. This warranty administration bulletin explains to the technician that when using wiring repair labor operations, additional information may be needed when submitting Global Warranty transactions when doing wiring repairs. |
| 070089037O | 2020-04-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information for courtesy transportation and roadside assistance programs. |
| 060089029P | 2020-04-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles. |
| 060089026P | 2020-04-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Warranty Administration ? Customer Concern Not Duplicated (CCND) Labor Operation Numbers. |
| 050310020G | 2020-04-27. Service bulletin. TIRES. This informational bulletin provides information for dealers/technicians on Use of Nitrogen Gas in Tires. |
| 020089002S | 2020-04-27. Service bulletin. EQUIPMENT. This informational bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). |
| 20NA014 | 2020-04-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin is providing a procedure to reprogram the ECM to correct a condition of Runs Rough Cold or Stall Condition Upon Cold Start and/or DTC U18A2 Set (North America /Middle East- Terrain Only). |
| 19NA243 | 2020-04-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin provides a procedure for replacing the body plugs due to water leaking through the body plug above the connector X500 causing the connector to be corroded. |
| 19NA176 | 2020-04-27. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides a procedure to replace the fuel pump and fuel feed front pipe if found the cause of the customers concern. |
| 17NA198 | 2020-04-27. Service bulletin. EQUIPMENT:MECHANICAL; SEATS:FRONT ASSEMBLY:POWER ADJUST. This technical bulletin provides a procedure to disengage the jammed parts and release the gears for proper function caused by the mechanical of the height adjustment being jammed, not broken creating a condition of difficult to adjust the seat height and/or seat stuck mostly in lowest position. |
| 20NA067 | 2020-04-27. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Accessory Rear Seat Infotainment (RSI) Shuts Off, Coinciding with Closing of Door or Liftgate. |
| 20NA054 | 2020-04-27. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION: CAMERA SYSTEM. This informational bulletin provides information for dealers/technicians on Rear View Camera Guidance Lines Dim After Radio Replacement or Programming. |
| 20NA047 | 2020-04-27. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR. This technical bulletin provides a service procedure to correct conditions of Front or Rear Crankshaft Oil Leak, MIL Illuminated with DTC P1101 Set. |
| N192273630-02 | 2020-04-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. Emission - General Motors has decided to conduct a voluntary emissions recall involving certain 2016-2019 model year diesel engine vehicles. The engine control module (ECM) in these vehicles may not adequately diagnose or illuminate the malfunction indicator lamp (Check Engine Light) when frequent regeneration of the diesel particulate filter (DPF) occurs. Dealers are to program the engine control module (ECM) with corrected software. |
| PIP5697B | 2020-04-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
| PIP5697A | 2020-04-13. Service bulletin. ENGINE; EQUIPMENT; POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
| PIP5704B | 2020-04-13. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This Preliminary information communicates a work around when only 11 digit PUN (Part Unique Number) is seen on Service Solenoid Body Assembly. |
| PIT5696D | 2020-04-13. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely or is induced by the customer. |
| 150089005C | 2020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.