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.

• 10155070Feb 5, 2019Equipment. 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.
• 10154540Feb 5, 2019Lane departure. This technical bulletin provides a procedure to replace the Front Seat Lane Departure Warning Actuator if the B172E is set in the seat control module.
• 10155067Feb 4, 2019Engine cooling. This engineering informational bulletin is requesting information from the field on reduced engine power, DTC P0299 set.
• 10154265Feb 4, 2019Engine cooling. This Preliminary information communicates that a rotational clicking noise heard after engine shut down is a design characteristic and no repairs should be attempted.
• 10154628Jan 31, 2019Equipment. 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).
• 10154625Jan 31, 2019Equipment. This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).
• 10154620Jan 29, 2019Body and structure. This technical bulletin provides repair information to correct a customer concern of hearing a ticking or popping noise at roof rail assist handle(s).
• 10155045Jan 25, 2019Body and structure. This technical bulletin provides repair information to correct a customer concern of seeing or feeling a sharp edge on the upper inboard corner of the rear body structure stop lamp.
• 10155065Jan 24, 2019Equipment. This engineering informational bulletin is requesting information to check the shutters through the grille opening of the vehicle. If snow and/or ice is present on the active grille air shutters, take pictures and submit through the Field Reporting Process.
• 10154626Jan 24, 2019Equipment. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
• 10155051Jan 23, 2019Wheels. This informational bulletin explains the wheel Road Force balancers and what they can do for customer concerns.
• 10155035Jan 23, 2019Equipment, Electrical system. This bulletin provides a procedure for dealers/technicians to manually adjust Clock.
• 10155028Jan 18, 2019Suspension. This technical bulletin provides a procedure for front lower control arm bushing replacement to correct a creak type sound while driving over bumps.
• 10154629Jan 18, 2019Electrical system. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
• 10155006Jan 14, 2019Visibility (wipers, defrost, mirrors). This technical bulletin provides repair information to correct a customer concern of the sunroof inoperative after cycling, and/or the sunroof window function is slow.
• 10154627Jan 14, 2019Equipment. This warranty administration bulletin provides policy information on required operating procedures.
• 10155059Jan 4, 2019Transmission and drivetrain. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Click or Tick Noise from Rear of Vehicle at Low Speeds When AWD is Engaged.
• 10155032Jan 3, 2019Equipment. This informational bulletin provides to the technician the correct parts and the labor operation number in conjunction with the repair.
• 10155031Jan 3, 2019Transmission and drivetrain. This technical bulletin provides a procedure to replace the 3-8 clutches and program the TCM to correct the customers concern.
• 10155010Dec 21, 2018Equipment. This warranty bulletin provides labor operation numbers for customer concerns Not duplicated (CCND).
• 10154979Dec 21, 2018Equipment. 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.
• 10154988Dec 20, 2018Equipment. This bulletin provides a procedure for dealers/technicians to manually adjust Clock.
• 10154983Dec 18, 2018Equipment, Engine cooling. 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.
• 10154608Dec 18, 2018Transmission and drivetrain. This preliminary information is released to provide engineering information on a noise from the rear drive system. Will be updated or removed after data is gathered .
• 10154980Dec 17, 2018Transmission and drivetrain. This technical bulletin provides a procedure to replace the transmission valve body separator plate for an upshift condition.
• 10154606Dec 17, 2018Equipment. This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport bus concerns. The kit contains header connectors that are installed to bypass Media Oriented Systems Transport bus modules. The bypass connector also contains a terminal for…
• 10154605Dec 17, 2018Suspension. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center.
• 10154604Dec 17, 2018Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency…
• 10154982Dec 14, 2018Equipment. This technical bulletin provides a procedure air conditioning refrigerant desiccant replacement due to refrigerant loss.
• 10154975Dec 14, 2018Transmission and drivetrain, Equipment. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test.
• 10154597Dec 14, 2018Electrical system. This Preliminary Information communication advises the technician that the restriciton on ECM part numbers 55501366, 55502052 and 55485591 has ended.
• 10155014Dec 13, 2018Equipment. 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).
• 10155009Dec 13, 2018Exterior lighting. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
• 10154976Dec 13, 2018Latches, locks and linkages. This informational bulletin provides information and operating tips for the hands free lift gate.
• 10154582Dec 13, 2018Electrical system. This Preliminary information communicates that a Engine Control Module (ECM) service update calibration for P0421.
• 10154986Dec 11, 2018Electrical system, Equipment. This technical bulletin provides a procedure to program the ECm to correct a false code that may set.
• 10154579Dec 11, 2018Engine cooling. This Preliminary information communicates the possibility of a crank no start or extended crank condition due to exhaust cam reluctor being out of position.
• 10154578Dec 11, 2018Equipment. This Preliminary information communicates information on 3 IPC Speedlimit concerns. Displayed speed limit is stuck on a value, not updating as the roadway speed limit changes. 2. Speed limit displays no value or is blank. 3. The speed limit unit of measurement (KPH/MPH) flashes. for Cadillac Models only). Technicians are to reprogram the radio for condition 1. Condition 2 and 3 are being researched by engineering…
• 10154566Dec 6, 2018Engine cooling. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
• 10155012Dec 5, 2018Equipment, Seats. This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices.
• 10155011Dec 5, 2018Electrical system. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.
• 10155008Dec 5, 2018Tires. This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
• 10207988Dec 4, 2018Engine cooling, Electrical system, Exterior lighting, Air bags. Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine…
• 10207697Dec 4, 2018Electrical system, Engine cooling. Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine…
• 10154978Dec 4, 2018Steering, Equipment. This informational bulletin provides information for the customer to pair their phone in order for the push to talk button on the steering wheel control to work.
• 10154555Dec 3, 2018Equipment. This Preliminary information communicates information on 3 IPC Speedlimit concerns. Displayed speed limit is stuck on a value, not updating as the roadway speed limit changes. 2. Speed limit displays no value or is blank. 3. The speed limit unit of measurement (KPH/MPH) flashes. for Cadillac Models only). Technicians are to reprogram the radio for condition 1. Condition 2 and 3 are being researched by engineering…
• 10154552Dec 3, 2018Engine cooling. This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.
• 10151869Nov 21, 2018Equipment. This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
• 10151861Nov 19, 2018Lane departure, Seats. This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from…
• 10151856Nov 16, 2018Electrical system, Transmission and drivetrain. This Preliminary information communicates that on a zero/light throttle 1-2 shift, the "D" may flash in the IPC with a flare/slip felt, as a designed calibration characteristic.

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