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.

• 10123224Oct 4, 2017Electrical system. 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.
• 10134595Oct 3, 2017Electrical system, Equipment. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
• 10123222Oct 3, 2017Equipment, Electrical system. 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.
• 10190339Oct 1, 2017Equipment, Electrical system. Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. Access to the battery specification label, which contains the OEM part number and CCA rating and type, may be difficult without component removal. Refer to the table below for the original…
• 10190338Oct 1, 2017Equipment. Essential Tools that Include Consumable Parts (U.S. Only)
• 10190337Oct 1, 2017Suspension. Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
• 10190336Oct 1, 2017Equipment. Information for Fleet Vehicles – Ignition Key, Fob and Key Rings Configuration Some Customers are bundling multiple keys, fobs, and key tags together on a single crimped loop or a cable. This practice may result in unintended key rotation, and should be discontinued immediately. The information in this bulletin details the proper configurations for the ignition key, fob, key rings and key tags and applying a QR…
• 10190329Oct 1, 2017Equipment, Back-over prevention (rear camera). Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temporarily not available at times but the RVC will remain on during the concern. Additionally, no related DTCs will be found if this bulletin applies. One example of when this concern may be observed is if a customer quickly starts the car and immediately places the shifter in Reverse…
• 10190320Oct 1, 2017Electrical system, Equipment. IPC Odometer Programming Method Quick Reference Guide
• 10190317Oct 1, 2017Engine cooling. Information on Diesel Engine Soot Deposits at the Variable Turbine Geometry (VGT) Pin Condition Some customers may comment that combustion deposits or soot (1) can be seen coming from the Turbo Actuator Pin/Arm (2). Information This is normal operation and will not affect the function of the Turbocharger. There is a small gap between the seal and the shaft to allow for proper rotation. Do Not replace the…
• 10190315Oct 1, 2017Equipment, Electrical system. Normal Characteristic – Push to Talk Button on Steering Wheel Control is Inoperative Condition Some customers may comment on one of the following conditions: 1. The push to talk button on the steering wheel control is inoperative when there is no phone device is paired with the vehicle. Note: The push to talk button, however, still answer OnStar hands-free calls (if equipped). 2. Cannot delete USB names from the…
• 10190271Oct 1, 2017Equipment. Flutter or Thump Noise from Rear of Vehicle Condition Some customers may comment on hearing a flutter or thump noise from the rear of the vehicle. The noise is most noticeable while driving above 40 km/h (25 mph), with the HVAC off, or in recirculation mode Cause The cause of the condition may be the rear pressure relief valves (PRVs) opening and closing.
• 10190268Oct 1, 2017Engine cooling. Information on Traces of EGR Cooler Housing Actuator Exhaust Residue Seen in Colder Climates Some customers may comment that exhaust residue (2) can be seen condensing onto the aluminum housing of the EGR assembly, making it appear as if the bypass actuator arm seal (1) has failed
• 10190263Oct 1, 2017Equipment, Electrical system. Information on Chassis Control Module (CCM) Receives Invalid Data and Sets DTC U0422 The Technician may find DTCs U0422 set. The Technician may also find the following DTCs set. • U1534 • U1538 Information Based on analysis with the BCM team, during vehicle startup (on occasion) the PEPS module arbitration along with high bus traffic leads to the BCM setting the door open switch virtual device availability (VDA) to…
• 10190232Oct 1, 2017Transmission and drivetrain. Information on Chassis Control Module (CCM) and Hybrid Powertrain Control Module (HPCM) Receives Invalid Data and Sets DTC U0422 The technician may find DTC U0422 set.
• 10157043Sep 28, 2017Engine cooling. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
• 10157041Sep 28, 2017Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will use Global Diagnostic System 2 to review the Firmware Over-the-Air version. If the Firmware Over-the-Air version on the scan tool equals 6708 the technician will need to contact General Motors Technical…
• 10159634Sep 26, 2017Fuel system, Electrical system. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Engineering Information ? Malfunction Indicator Lamp (MIL) On DTCs P0171 Fuel Trim System Lean Bank 1 and/or P0174 Fuel Trim System Lean Bank 2.
• 10157035Sep 25, 2017Engine cooling. This Preliminary information communicates the need to replace the heater hose clamps anytime the heater hoses are serviced.
• 10159599Sep 22, 2017Suspension. This informational bulletin provides information on RDM Axle Ratios for AWD Vehicles for Vibration Diagnostics When Using the Pico Scope
• 10159617Sep 20, 2017Equipment, Engine cooling. This informational bulletin explains to the technician to erase the code P2598 set during PDI.
• 10159570Sep 20, 2017Electrical system. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
• 10157020Sep 20, 2017Equipment, Electrical 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.
• 10159613Sep 19, 2017Electrical system. This informational bulletin provides information for programming the low speed LAN module due to the mirrors memory position reverse tilt position is inoperative.
• 10157016Sep 19, 2017Equipment, Engine cooling. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
• 10157014Sep 18, 2017Fuel system, Engine. This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. After the fuel…
• 10159575Sep 14, 2017Electrical system. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
• 10159572Sep 14, 2017Equipment. This informational bulletin explains the importance of maintaining the vehicle.
• 10157003Sep 13, 2017Equipment, Engine cooling. This Preliminary information communicates the possibility of the timing chain tensioner gasket being improperly installed or mis-positioned after major engine repairs causing a low engine oil pressure and dtc p06DE.
• 10159569Sep 12, 2017Engine cooling, Equipment. This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
• 10157000Sep 12, 2017Engine, Equipment. This Preliminary information communicates the following to the dealer. If an engine oil leak has been isolated to the front crankshaft seal, check for misfires low engine compression and/or cylinder leakage readings. These issues could cause excessive positive crankcase pressure leading to engine oil leaks.
• 10156999Sep 11, 2017Equipment. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.
• 10159578Sep 7, 2017Electrical system, Equipment. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
• 10159588Sep 6, 2017Engine cooling. This informational bulletin provides information on a Service Emission System Message and/or a Malfunction Indicator Lamp illuminated. This usually occurs after recently filling the DEF tank with the ignition in the on position due to some DEF fill equipment uses pumps that create a high level of temporary aeration of the DEF fluid being dispensed in the tank.
• 10156992Sep 6, 2017Fuel system, Engine cooling. This Preliminary Information communication provides information to the technician that some vehicle may have an “ Exhaust Fluid Quality Poor ” on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination.
• 10156990Sep 6, 2017Equipment. 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.
• 10159574Sep 5, 2017Engine. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10140293Aug 31, 2017Engine cooling. This informational bulletin provides information on Intake Manifold Inspection/Replacement After Severe Internal Engine Damage.
• 10140298Aug 30, 2017Equipment. 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.
• 10140401Aug 28, 2017Equipment. This informational bulletin provides information on Loss of Phone Pairing When Vehicle Shuts Down in Demo Mode and that this is considered a normal characteristic of the vehicle in demo mode.
• 10137742Aug 28, 2017Engine, Engine cooling. This Preliminary Information communication advises the technician that the 1.6L Diesel Engine (RPO LH7) has been placed on Engine Exchange program. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10140398Aug 24, 2017Equipment. This technical bulletin provides a procedure to add lubricant to the armrest hinge springs if making noise.
• 10140406Aug 23, 2017Body and structure, Equipment. Thins informational bulletin provides information on Paint-less Dent Repair Process.
• 10140295Aug 22, 2017Electrical system. This informational bulletin provides information on OnStar® VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
• 10137733Aug 22, 2017Equipment. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
• 10140391Aug 21, 2017Fuel system. This technical bulletin provides repair information to correct a customer concern of hearing a flutter or boom noise from rear of vehicle.
• 10137727Aug 21, 2017Engine. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
• 10140388Aug 16, 2017Electrical system. This technical bulletin provides a procedure to perform a RDCCM update to correct a possible clunking noise from the tcase or rear axle clutches.
• 10137722Aug 16, 2017Equipment. The PI was created to advise of an engineering investigation for a concern of unable to connect toOnStar Virtual Advisor when selecting "New Destination" in the OnStar menu.
• 10140373Aug 15, 2017Electrical system. This informational bulletin provides to the technician, locations to check for possible loose or damaged electrical connections that may set a DTC instead of just replacing a part.

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