2020 GMC Terrain Technical Service Bulletins

844 technical service bulletins (TSBs) are on record for the 2020 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.

• 10230691Dec 12, 2022Forward 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".
• 10228192Dec 7, 2022Equipment. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 10230683Dec 5, 2022Equipment, Electrical 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.
• 10230682Dec 2, 2022Equipment, Electrical 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.
• 10227401Nov 30, 2022Equipment, Electrical system. This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.
• 10227674Nov 29, 2022Wheels, Tires. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
• 10227672Nov 28, 2022Electrical system. This Preliminary information communicates the possibility of a crank no start or extended crank condition due to exhaust cam reluctor being out of position.
• 10227371Nov 23, 2022Wheels. This warranty administration bulletin provide policy information on tires are not meeting tread depth expectations, or wearing out (reaching 2/32)) too quickly.
• 10227396Nov 22, 2022Transmission and drivetrain. This engineering information (EI) closure ends the need to gather further information from technicians in regards to Vehicle Will Not Move When in Drive, Neutral and/or Reverse and DTCs P0746, P0747 Set.
• 10227241Nov 18, 2022Transmission and drivetrain, Engine cooling. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
• 10227056Nov 9, 2022Engine cooling. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
• 10226122Nov 4, 2022Engine cooling. This service bulletin provides a repair procedure to correct a customer concern of Reduced Engine Power, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0101, P0172, P0299, P0506, and/or P1101 Set.
• 10226117Nov 4, 2022Electrical system, Equipment. This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of software related issues.
• 10226399Oct 28, 2022Transmission and drivetrain, Body and structure. This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
• 10225708Oct 25, 2022Engine cooling, Electrical system. This technical bulletin advises the technician to rest the MIL and diagnose additional DTCs for why the code is setting and disabling the start/stop system.
• 10225615Oct 19, 2022Electrical system. This service bulletin provides information on Module Harvesting.
• 10225612Oct 18, 2022Equipment, Electrical system. This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of software related issues.
• 10224820Oct 7, 2022Equipment. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
• 10226359Oct 5, 2022Brakes. This preliminary information discusses the possibility of brake module damage caused by performing the rear brake service incorrectly.
• 10224832Oct 5, 2022Transmission and drivetrain. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Vehicle Will Not Move When in Drive, Neutral and/or Reverse and DTCs P0746, P0747 Set.
• 10224831Oct 4, 2022Body and structure. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
• 10224309Sep 30, 2022Other or unknown. This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation…
• 10224304Sep 28, 2022Other or unknown. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
• 10222839Sep 28, 2022Equipment. This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.
• 10222841Sep 27, 2022Electrical system. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10222777Sep 16, 2022Transmission and drivetrain, Brakes, Engine cooling, Suspension, Steering. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
• 10222776Sep 16, 2022Electrical system. The intent of this service 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.
• 10222771Sep 16, 2022Engine cooling. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10222770Sep 16, 2022Transmission and drivetrain, Engine cooling. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
• 10222766Sep 16, 2022Engine cooling, Fuel 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.
• 10224285Sep 14, 2022Transmission and drivetrain. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
• 10222796Sep 14, 2022Engine cooling. This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
• 10222772Sep 14, 2022Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10222765Sep 14, 2022Fuel system, Engine cooling. This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
• 10222733Sep 14, 2022Equipment. This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
• 10222739Sep 13, 2022Engine cooling, Fuel system. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
• 10222734Sep 13, 2022Engine cooling. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 10222732Sep 13, 2022Engine cooling. This service 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.
• 10222650Sep 9, 2022Engine cooling. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10222649Sep 9, 2022Equipment. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
• 10222205Sep 9, 2022Engine cooling. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10222661Sep 8, 2022Equipment, Electrical system. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
• 10222667Sep 7, 2022Electrical system, Air bags, Exterior lighting. This bulletin offers Information on Possible Crank No Start or Extended Crank with DTC P12A6 or Service Safety Restraints message on DIC, with B0073.
• 10222663Sep 7, 2022Equipment, Electrical system. This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.
• 10224273Sep 1, 2022Transmission and drivetrain. This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
• 10220319Sep 1, 2022Transmission and drivetrain. This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.
• 10220315Sep 1, 2022Electrical system, Equipment, Visibility (wipers, defrost, mirrors). This informational bulletin provides information for dealers/technicians on Intermittent or Inoperable Rearview Camera, May Display Blue or Black Screen With Error Message.
• 10220308Sep 1, 2022Equipment. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
• 10219396Aug 31, 2022Body and structure. This technical bulletin provides repair information to correct a customer concern of finding a waterleak inside the interior of the vehicle.
• 10219387Aug 31, 2022Body 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).

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