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
| PIT3099R | 2019-08-12. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Technicians may also contact Partech and/or the Techline Customer Support Center for additional support. |
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| 1308116001E | 2019-07-29. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. |
| 100845001G | 2019-07-29. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish. |
| 090604026Q | 2019-07-29. Service bulletin. ENGINE; EQUIPMENT. This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 060847001O | 2019-07-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. |
| 050604022Q | 2019-07-29. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL. |
| 000601012J | 2019-07-29. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts. |
| 19NA104 | 2019-07-29. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. |
| 16NA338 | 2019-07-29. Service bulletin. POWER TRAIN. This 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. |
| 19NA013 | 2019-07-29. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This technical bulletin provides repair information to correct a customer concern of hearing a ticking or popping noise at roof rail assist handle(s). |
| 19NA006 | 2019-07-29. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This technical bulletin provides a procedure to replace the HVAC case with the redesigned part. |
| 16NA222 | 2019-07-29. Service bulletin. EQUIPMENT. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations. |
| PIT5696 | 2019-07-08. Service bulletin. SERVICE BRAKES. This preliminary information discusses potential for a code C0010.5A to store in the brake controller which appears to be setting falsely and advises engineering is investigating the concern. |
| PIT5678A | 2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This Preliminary information communicates an issue with the radiator lower mount that sounds as if it is coming from behind the front wheels. |
| PIT5608C | 2019-07-08. Service bulletin. STRUCTURE:BODY:DOOR. This preliminary information explains a potential issue engineering is investigating into water intrusion into the door passthrough connector and effecting door functions. |
| PIT4916H | 2019-07-08. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. This Preliminary Information communication provides information to the technician about vehicles that have may a helicopter type noise when a rear window is lowered. This is a normal characteristic of this vehicle, but the concern can be minimized by lowering a front door glass approximately 1 to 2 inches. |
| PIP5657A | 2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of a misfire occuring due to a broken center insulator on the spark plug. |
| PIP4670G | 2019-07-08. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles. |
| PIP5657 | 2019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of a misfire occuring due to a broken center insulator on the spark plug. |
| PIT5074L | 2019-07-08. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel. |
| PIE0522 | 2019-07-01. Service bulletin. VISIBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a loose rear wiper arm. |
| 080730035D | 2019-07-01. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 19NA106 | 2019-07-01. Service bulletin. ELECTRICAL SYSTEM. This Technical bulletin provides a Correction for a Condition of OnStar Red LED Illuminated - DTCs U18B4, U18B5, U18AF Set. |
| 19NA100 | 2019-07-01. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical bulletin provides a procedure for dealers/technicians on the release of Radio Software Version 22.8 Over-the-Air Update. |
| 19NA098 | 2019-07-01. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. This technical bulletin provides a procedure to add flocking tape the radiator mount sleeves to reduce the knocking noise caused by the excessive movement. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.