WenmarOpen by Wenmar Pro

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: Software are shown. Show all

Bulletins, newest first
17NA2382018-06-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Technical bulletin provides a correction for Wi-Fi Hotspots or Data Sharing Feature Not Working once Turned on.
PIT56112018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This preliminary information is regarding a condition where the the SDM loses communication due to a software issue.
17NA3562018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to replace the SD Card or the USB receptacle to correct a condition of Navigation Inoperative with SD Card Error Message Displayed due to a software issue.
17NA2382018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical bulletin provides a correction for Wi-Fi Hotspots or Data Sharing Feature Not Working once Turned on.
090604026N2018-05-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2 9U.S. and Canada
18NA0512018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to update the radio with the latest calibrations to correct a condition of TTY Phone Feature Icon Missing from Radio Display Setting due to a software abnormality.
18NA0422018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. This technical bulletin provides a procedure on reprogramming the ICS to correct a condition of Air Filter Life Check System Message Displayed due to a software anomaly.
18NA0412018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to reprogram the HVAC module to correct a condition of HVAC Inoperative during Remote Start Event with Accessory Remote Start Kit due to a calibration concern.
18NA0622018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ENGINE. This informational bulletin provides the tech to refer to a field action 17337 to update the ECM to the latest calibration available.
17328-02 (Bullet2018-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 17328-02 - Customer Satisfaction ( Update Procedure Revised). Vehicles need to be reprogrammed with an updated software package. This new software package will provide changes to the climate control system, certain audio features and the in-vehicle navigation system so they continue to function properly. The changes will also prevent instances of intermittent system lock-up. OnStar will update vehicles remotely through in-vehicle prompts from the radio display. However, some customers may decline the vehicle update or the update is attempted, but is not successful. In such cases, and in all export markets, dealers will be required to reprogram the vehicle with the new software package.
PIT5587A2018-03-12. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This preliminary information explains that there is a software issue causing the driver mode switch to not change modes , that engineering has released new calibrations to address this concern.
17-NA-2442017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application and where to locate the information for future use.
17-NA-2422017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides to the tech the new version of SPS that will prompt warnings when trying to reprogram modules that have been already reprogrammed.
PIT55972017-12-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:SOFTWARE. This preliminary information was created to communicate a software issue not allowing the HVAC to turn on when the vehicle is remote started. It functions correctly when started regularly. Engineering will release a calibration to fix this in the future.
PIP5508A2017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. This Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the T87A Transmission Control Module. The dealer technician is advised to call the GM Product Quality Center for further assistance.
PIT55902017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates to the technician, that they may be working on a concern of a Service Driver Assist System Message with B172E stored in history Do not replace any parts. Engineering is aware of the issue and a new control module is in development and will be available Q1 2019.
PIT55892017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates information that GM is working on software to correct rear camera screens too bright at night and not to make any repairs.
PIC5492F2017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface control module. Engineering has determined that this code will only display in history on the scan tool and will not cause issues with OnStar system operation.
PIT55872017-11-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This preliminary information explains that there is a software issue causing the driver mode switch to not change modes , that engineering is working to address the concern and how to change the modes using the current calibrations.
PIC5588D2017-10-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system. For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System. For the 2010 and UP model year vehicles, the OnStar set-up procedure and OnStar Activation request have been combined into a single programming event called OnStar Set-up and Activation in Service Programming System.

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