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
Only bulletins with component: Electrical system are shown. Show all
| PIE0516 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE. This engineering informational bulletin is requesting information on a 3 second long crank time before the engine starts after the vehicle has been sitting at least 20 minutes. |
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| PIE0505A | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This engineering informational bulletin ends the need for information from the field on a Condition of Engine Running Rough and/or Check Engine Light Illuminated, DTCs P0300, P0301, P0302, P0303, P0304 Set. |
| 110849001Z | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF. |
| 100845001F | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive finish". |
| 090089002Q | 2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer. |
| 070849020P | 2019-04-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the IPC odometer programming method quick reference guide. |
| 18NA338 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. This technical bulletin proves a procedure to update the rear infotainment monitors if found the cause of the audio concerns. |
| 18NA247 | 2019-04-22. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides to inspect and clean the grounds that may cause the customers MIL concern. |
| 18NA300 | 2019-04-15. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to program the ECM to correct a false code that may set. |
| 18NA246 | 2019-04-15. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; ENGINE. This technical bulletin provides a procedure to change the oil if excessive fuel has been found in the oil and the cause of the DTC set. Also replacing the PCV valve in camshaft cover and updating the ECM with latest software. |
| PIT5236K | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will use Global Diagnostic System 2 to review the Firmware Over-the-Air version. If the Firmware Over-the-Air version on the scan tool equals 6708 the technician will need to contact General Motors Technical Assistance Center for further assistance. If the Firmware Over-the-Air version on the scan tool is lower than 6708 Dealer can order the part thought the Instrument Sales and Service website process. |
| PIT5074K | 2019-04-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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. |
| PIT5655A | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates that a customer may complain of when a Bluetooth call is received the ringing will be continuous for the rest of the drive cycle . It may be noted that this only seems to occur when using an Android device on OS 9.0. This may be caused by a software concern in the phone. The dealer is instructed that the phone manufacturer is working on a software update to resolve the concern. |
| 18NA300 | 2019-04-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This technical bulletin provides a procedure to program the ECM to correct a false code that may set. |
| 18NA347 | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides a procedure for dealers/technicians to manually adjust Clock. |
| 18NA338 | 2019-03-25. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; EQUIPMENT. This technical bulletin proves a procedure to update the rear infotainment monitors if found the cause of the audio concerns. |
| 110849001Y | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message On and Off. |
| 18NA347 | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides a procedure for dealers/technicians to manually adjust Clock. |
| 060847001N | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. |
| 18NA300 | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides a procedure to program the ECm to correct a false code that may set. |
| 100089005H | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs. |
| PIP5428E | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that the restriciton on ECM part numbers 55501366, 55502052 and 55485591 has ended. |
| PIP5615 | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that a Engine Control Module (ECM) service update calibration for P0421. |
| 17NA276 | 2019-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Loss of Phone Pairing or Favorites, Last Setting of Volume, Station, App, and Audio Settings Change When Vehicle Shuts Down in Demo Mode and that this is considered a normal characteristic of the vehicle in demo mode. |
| PIT5655 | 2019-03-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates that a customer may complain of when a Bluetooth call is received the ringing will be continuous for the rest of the drive cycle . It may be noted that this only seems to occur when using an Android device on OS 9.0. This may be caused by a software concern in the phone. The dealer is instructed that the phone manufacture is working on a software update to resolve the concern. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.