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Service bulletins for the 2014 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.

1698 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

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Only bulletins with component: Wiring and fuses are shown. Show all

Bulletins, newest first
1300890082023-12-11. Service bulletin. ELECTRICAL SYSTEM:WIRING. GM Wiring Repair Strategy Information
PI-1067B2021-04-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM:WIRING. Malfunction Indicator Lamp (MIL) Light On, Reduced Power Mode, DTC Set, Poor Performance/Shifts In rare cases, some customers may comment that the malfunction indicator lamp is on, poor performance and reduced power mode on. Technicians may find DTC P0641 or various others set. Not all of the effects listed may be experienced. However, the different effects and driver notifications may be caused by one of the wires in the ECM harness being chafed or cut. Due to the cause of the condition, and the positions of the wires in the harness, it is unlikely that more than one circuit will be affected by the condition. This condition may be caused by the ECM wiring harness rubbing on the ECM bracket. The harness may have chafing or damage to the wires. Contact with the edge of the bracket may result in a rub-through of the wires within that harness.
100089005G2019-05-13. 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.
100089005H2019-03-18. 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.
10-00-89-005C2018-06-04. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
PI1004A2018-05-29. Service bulletin. ENGINE; ELECTRICAL SYSTEM:WIRING. This preliminary bulletin provides a procedure to repair the engine wiring harness if the customer states MIL on multipul service messages displayed.
10-00-89-005E2018-05-21. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
13-00-89-008A2018-05-07. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
PI1067B2018-04-23. Service bulletin. ELECTRICAL SYSTEM:WIRING. This preliminary informational bulletin adds the 2017 model year to repair information for a customer concern of Malfunction Indicator Lamp (MIL) on, Reduced Power Mode on, DTC(s) set, and/or poor performance/shifts.
13-00-89-0082018-04-02. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin provides information for GM wiring repair.
100089005D2017-12-22. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
10-00-89-005F2017-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:WIRING. This informational bulletin provides warranty policy information on revised wiring repair labor operations and required additional information.
16-NA-0122017-08-31. Service bulletin. ELECTRICAL SYSTEM:WIRING; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. This technical bulletin provides a procedure to Inspect harness, splice 6 wire pigtail connector. Replace Accelerator Pedal Position (APP) sensor on vehices that have the condition of Malfunction Indicator Light (MIL) ON, Reduced Power Mode and DTCs
10-08-42-001D2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING. This technical bulletin provides a procedure to check the headlamp wiring connector and replace if damaged.
13-00-89-008A2017-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin communicates GM wiring repair strategy information.
16-NA-0042017-08-15. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING; STEERING:ELECTRIC POWER ASSIST SYSTEM. This technical bulletin provides a procedure to perform a wire to wire repair on the engine harness to correct Intermittent Multiple IPC Warning Lamps Illuminated, Loss of Power Steering Assist, Service Power Steering Message on DIC, Malfunction Indicator Lamp Illuminated, Multiple HSLAN U-Codes Set
PIP5209A2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code P00C6 and/or P228C set. Technician will need to inspect the terminals at the Engine Control Module for fit and tension as well as the crimp to wire connection. Terminals to inspect in the ECM are connector x2 terminals 3, 18, and 19 for the fuel rail pressure sensor. Also connector x3 terminals 16 and 32 for the high pressure fuel pump.

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