2018 GMC Terrain Technical Service Bulletins

1,345 technical service bulletins (TSBs) are on record for the 2018 GMC Terrain. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10165877Sep 6, 2019Electrical system. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
• 10166621Sep 5, 2019Electrical system. This technical bulletin provides repair information to correct a customer concern of Speedometer and Tachometer Reading Inaccurately.
• 10165874Sep 5, 2019Equipment. 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.
• 10165868Sep 5, 2019Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10165865Sep 4, 2019Steering. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist. Starting with 2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane…
• 10165080Aug 26, 2019Engine cooling. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
• 10165127Aug 23, 2019Electrical system. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399, E4403, M4404, M4413, E4414, E4423, E4491 or E6961).
• 10165092Aug 23, 2019Electrical system. This technical bulletin provides repair information to correct a customer concern of an intermittent blank or flickering driver information center (DIC).
• 10165087Aug 23, 2019Equipment. This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
• 10164780Aug 22, 2019Equipment. This Preliminary Information communication provides information to the technician about vehicles headrest monitors shutting off intermittently when closing driver door. Dealers should not replace any parts for this concern. Dealers should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10164779Aug 22, 2019Steering. This preliminary information is created to make the service technician aware of a condition where the ground for the steering module may not have a sufficient ground path.
• 10164778Aug 22, 2019Brakes. 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.
• 10165124Aug 21, 2019Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10165084Aug 20, 2019Equipment. 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.
• 10165126Aug 19, 2019Equipment. This bulleting provides Wiring, Terminal and Connector Repair Information including how to determine the Service Part Number in eSI and how to locate the part(s) in the EPC.
• 10165112Aug 16, 2019Engine cooling. This technical bulletin provides a procedure to locate and repair the engine wiring harness.
• 10165121Aug 15, 2019Engine cooling. This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10165122Aug 13, 2019Engine cooling. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10165123Aug 12, 2019Transmission and drivetrain. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
• 10165130Aug 7, 2019Engine cooling. This engineering information (EI) ends the need for information from the field on a condition of 3 second long crank time before the engine starts after the vehicle has been sitting at least 20 minutes. If a vehicle is encountered with this condition, refer to SI for further diagnosis.
• 10165079Aug 5, 2019Steering. This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
• 10164739Aug 2, 2019Equipment, Electrical system. This Preliminary information communicates information to not replace any parts for Favorites unavailable message intermittently. This PI will be deleted and a bulletin created when new software is available.
• 10163897Jul 31, 2019Equipment, Engine. This informational bulletin provides instruction on what may be the cause of the oil leak depending on location and which seal to use to fix it.
• 10163686Jul 30, 2019Equipment. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
• 10163681Jul 29, 2019Equipment. This Preliminary information communicates that when a customer or technician attempts to add a new transmitter to a vehicle following the adding transmitters without Service Programming System procedure the procedure will not complete and a message "Remote Learn Pending" will be displayed on the Driver Information Center. In the past to perform the new transmitter procedure only one previously learned transmitter…
• 10163900Jul 26, 2019Equipment. This informational bulletin provides process information for the (GWM) and (WPC) parts return program.
• 10163885Jul 22, 2019Fuel system. This technical bulletin provides repair information to correct a customer concern of hearing a flutter or thump noise from rear of vehicle.
• 10163665Jul 16, 2019Wheels, Vehicle speed control. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
• 10163659Jul 10, 2019Equipment. 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.
• 10162171Jun 28, 2019Brakes. 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.
• 10162170Jun 28, 2019Engine cooling. This Preliminary information communicates an issue with the radiator lower mount that sounds as if it is coming from behind the front wheels.
• 10162169Jun 28, 2019Body and structure. This preliminary information explains a potential issue engineering is investigating into water intrusion into the door passthrough connector and effecting door functions.
• 10163272Jun 26, 2019Equipment. 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.
• 10163268Jun 26, 2019Equipment, Electrical system. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
• 10163261Jun 26, 2019Fuel system. 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.
• 10163211Jun 26, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of hearing a ticking or popping noise at roof rail assist handle(s).
• 10164108Jun 25, 2019Electrical system, Equipment. N182198330 - Service Update - Certain 2017 and 2019 model year Chevrolet Cruze vehicles, 2018 model year Chevrolet Malibu vehicles, 2018 model year GMC Terrain vehicles, and 2019 model year Buick Cascada vehicles may have been built with an Engine Control Module (ECM) that does not respond to on board diagnostic (OBD) test tools with the required calibration verification numbers. These ECM?s may not diagnose memory…
• 10163266Jun 25, 2019Equipment, Engine. This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10163260Jun 25, 2019Equipment. 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.
• 10163193Jun 25, 2019Equipment. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10162148Jun 24, 2019Visibility (wipers, defrost, mirrors). 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.
• 10162140Jun 19, 2019Engine cooling. This Preliminary information communicates the possibility of a misfire occuring due to a broken center insulator on the spark plug.
• 10162124Jun 13, 2019Electrical 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.
• 10163263Jun 11, 2019Electrical system, Equipment. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.
• 10162120Jun 11, 2019Engine cooling. This Preliminary information communicates the possibility of a misfire occuring due to a broken center insulator on the spark plug.
• 10163237Jun 10, 2019Engine cooling. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
• 10163215Jun 6, 2019Transmission and drivetrain. 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.
• 10164098Jun 4, 2019Electrical system. Customer Satisfaction Program. Certain 2018 model year Cadillac ATS, CTS, XTS, and GMC Terrain vehicles may have a condition where they could lose infotainment audio or lose the warning ?chimes?. GMC branded vehicles could also display the Cadillac CUE logo at startup. Dealers will inspect, and if necessary, reprogram the vehicle with the correct radio software and calibration.
• 10163209Jun 4, 2019Equipment. This technical bulletin provides a procedure to replace the HVAC case with the redesigned part.
• 10162106Jun 3, 2019Electrical 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.

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