2021 Chevrolet Tahoe Technical Service Bulletins

1,477 technical service bulletins (TSBs) are on record for the 2021 Chevrolet Tahoe. 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.

• 10201253Jul 22, 2021Air bags, Other or unknown, Electrical system. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system…
• 10201177Jul 22, 2021Electrical system. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system…
• 10201252Jul 21, 2021Air bags, Transmission and drivetrain. 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…
• 10201251Jul 21, 2021Electrical system. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
• 10200198Jul 20, 2021Electrical system, Equipment, Steering. Customer Satisfaction Program. On certain vehicles with a special service sales package and radio infotainment system (RPOs 5W4 and IOR), the left hand buttons on the backside of the steering wheel currently enable favorites instead of being repurposed for the use of emergency equipment such as police lights or sirens and push-to-talk microphone. Dealers are to reprogram the radio.
• 10201248Jul 19, 2021Equipment, Engine. This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
• 10201182Jul 14, 2021Suspension. This PI communicates that engineering is investigating a correction to a noise originating in the front of the vehicle.
• 10201299Jun 30, 2021Electrical system. This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, Chevrolet Corvette, Suburban, Tahoe and GMC Yukon.
• 10200128Jun 29, 2021Tires. This technical bulletin provides repair information to correct a customer concern of Tire Pressure Monitor System Sensors Display Dashes with Trailer Connected.
• 10200149Jun 28, 2021Equipment, Visibility (wipers, defrost, mirrors). This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint percentage.
• 10200162Jun 25, 2021Latches, locks and linkages, Electrical system. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Liftgate Ajar Lamp illuminated on Driver Information Center (DIC) with the Liftgate being closed.
• 10200187Jun 23, 2021Engine cooling, Electrical system. Emission Recall. General Motors has decided to conduct a voluntary emissions recall involving certain vehicles equipped with a performance air intake system (LPO RVK or 5W7). The Engine Control Module (ECM) may not have been programmed with the calibrations appropriate for the performance air intake system installed on the engine in these vehicles. Dealers will reprogram the ECM.
• 10200151Jun 21, 2021Equipment, Exterior lighting. This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.
• 10201289Jun 18, 2021Wheels, Back-over prevention (rear camera). This preliminary information bulletin instructs to technicians to use the Picoscope or a make physical inspection to check for debris on the cam postion sensor and to check for a bent target wheel on the camshaft.
• 10201288Jun 18, 2021Body and structure. This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
• 10201287Jun 17, 2021Equipment. This Preliminary information communicates an issue with the floor center console cooler being inoperative and engineering working on a root cause.
• 10201285Jun 16, 2021Tires. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
• 10201281Jun 15, 2021Equipment. 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.
• 10200154Jun 15, 2021Transmission and drivetrain, Equipment. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
• 10200163Jun 10, 2021Exterior lighting. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a turn signal not canceling and/or mis-canceling.
• 10200137Jun 10, 2021Other or unknown. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
• 10200135Jun 9, 2021Engine cooling. This informational bulletin provides Changes to the Automatic Stop/Start feature for Certain 2021 Escalade models, Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon models Equipped with RPO NSS.
• 10200133Jun 8, 2021Seats, Latches, locks and linkages. This technical bulletin provides repair information to correct a customer concern of rear seat (60 Percent) and/or (40 Percent) chucking movement, and noise is present at rear latch to striker.
• 10200152Jun 7, 2021Transmission and drivetrain, Equipment. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10200125Jun 7, 2021Engine cooling, Equipment. This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.
• 10201267Jun 3, 2021Transmission and drivetrain, Fuel system. This Preliminary information communicates to the dealer technician that if a customer comments that their vehicle equipped with a 6L80, 6L90, 8L90, 10L80, or 10L1000 transmission has a harsh shift, shudder, stall or high transmission fluid temperature concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler…
• 10200153Jun 3, 2021Equipment. This service bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
• 10200134Jun 2, 2021Seats, Electrical system. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.
• 10201265Jun 1, 2021Back-over prevention (rear camera). This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506, Possible valve spring concern
• 10200171Jun 1, 2021Electrical system. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp (MIL) illuminated on Driver Information Center (DIC).
• 10200131Jun 1, 2021Body and structure, Electrical system. This technical bulletin provides repair information to correct a customer concern of Rear Access Open Message Illuminated in DIC when Liftgate is Closed.
• 10200089May 27, 2021Equipment. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
• 10199281May 25, 2021Fuel system. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
• 10198890May 25, 2021Electrical system. This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
• 10197309May 25, 2021Brakes. This Preliminary information communicates the location of the GM Accessory Performance Brake System Rotor Specifications
• 10197308May 25, 2021Electrical system. This Preliminary information communicates an issue with the common / fleet key options for police vehicles. Currently, the common key option will not start vehicles with the same common key option and engineering is working on new BCM software to fix the issue.
• 10197306May 25, 2021Suspension, Electronic stability control. This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer…
• 10197305May 25, 2021Electrical system, Body and structure. This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, Chevrolet Corvette, Suburban, Tahoe and GMC Yukon.
• 10197327May 24, 2021Equipment. Service Update. Certain vehicles, equipped with an Infotainment System, may have a condition during cold temperature conditions where the Infotainment screen is blacked out. Dealers will reprogram the radio.
• 10197302May 24, 2021Electrical system. This preliminary information bulletin instructs to technicians to use the Picoscope or a make physical inspection to check for a suspected bent target wheel on the camshaft.
• 10199235May 21, 2021Equipment. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10198844May 21, 2021Equipment. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).
• 10197301May 21, 2021Transmission and drivetrain, Fuel system. This Preliminary information communicates to the dealer technician that if a customer comments that their vehicle equipped with a 6L80, 6L90, 8L90, 10L80, or 10L1000 transmission has a harsh shift, shudder or stall concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler line and inspect the cooler line for…
• 10200112May 20, 2021Back-over prevention (rear camera), Lane departure. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to one or more camera views showing intermittent behavior and/or totally inoperable.
• 10199254May 19, 2021Visibility (wipers, defrost, mirrors). This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.
• 10198863May 19, 2021Visibility (wipers, defrost, mirrors). This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.
• 10200111May 17, 2021Forward collision avoidance, Lane departure. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to having a No Start, Forward Collision Alert, Adaptive Cruise Control and/or Lane Keep Assist Inoperable condition.
• 10200110May 17, 2021Engine. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to one or more of the following condition Stalls, Crank with no star, Check Engine Lamp illuminated on the Driver Information Center (DIC).
• 10200090May 17, 2021Equipment. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).
• 10200088May 17, 2021Equipment. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

← All problems reported for the 2021 Chevrolet Tahoe