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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
18NA0202020-03-30. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227.
16NA1192020-03-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
N1922816402020-03-23. Service bulletin. EQUIPMENT; STRUCTURE:BODY:ROOF AND PILLARS. Customer Satisfaction Program - Certain vehicles may have a condition where the owner manual lists an incorrect roof cargo load specification. Customers will receive an owner manual insert notifying them of the update on the roof cargo load specifications. Dealers are to print and install the Owner Manual Insert.
N1922163112020-03-23. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY; POWER TRAIN:MANUAL TRANSMISSION:FLOOR SHIFT ASSEMBLY; EQUIPMENT. Service Update - Certain vehicles may have a condition where the customer may be able to shift out of park with an expired latent fault mode counter. This will only occur after the customer ignores multiple driver information center (DIC) and chime warnings. By design, the vehicle should not allow the driver to shift out of park once the latent fault mode counter expires. Dealers are to reprogram the engine control module.
PIP5704A2020-03-09. Service bulletin. EQUIPMENT; STRUCTURE; ELECTRICAL SYSTEM. This Preliminary information communicates a work around when only 11 digit PUN (Part Unique Number) is seen on Service Solenoid Body Assembly.
PIP5708A2020-03-09. Service bulletin. EQUIPMENT; ENGINE. This Preliminary information communicates to the technician the vehicle concern of starter flex plate having broken teeth. This can create a noise during starting or may even have the starter spin but not crank over the engine. The document directs the technician to replace the flex plate and inspect the starter pinion drive teeth and replace starter assembly as needed.
PIP57102020-03-09. Service bulletin. EQUIPMENT; ENGINE. This Preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtc P0172 P0299 P0101 P0506 P1101
PIT5411S2020-03-09. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.
110089002D2020-03-09. Service bulletin. EQUIPMENT. This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
050307009I2020-03-09. Service bulletin. WHEELS; EQUIPMENT. This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.
030846004W2020-03-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).
20NA0162020-03-09. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.
19NA2792020-03-02. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Technical bulletin provides a procedure for dealers/technicians on Radio Software Version V807 Over-the-Air Update.
19NA0982020-03-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; EQUIPMENT. This technical bulletin provides a procedure to add flocking to tape the radiator mount sleeves to reduce the knocking noise caused by the excessive movement.
18NA3062020-03-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
16NA3832020-03-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
PIT5411R2020-02-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.
PI0592F2020-01-21. Service bulletin. EQUIPMENT. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
PIT57272020-01-21. Service bulletin. EQUIPMENT. This preliminary information discusses a MIL illuminated in the IPC and a low fuel pressure code stored in the engine controller. Engineering is investigating the concern.
100089009D2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.
080310006G2019-12-16. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY; WHEELS. This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.
080089014F2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
010842001M2019-12-16. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
19NA2702019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.
19NA2452019-12-16. Service bulletin. EQUIPMENT; VISIBILITY. This technical bulletin provides repair information to correct a customer concern of the sunroof and/or sunshade inoperative.

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