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.

• 10197298May 17, 2021Engine. 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.
• 10199252May 14, 2021Electrical system. This service bulletin provides repair information to correct a customer concern of Service Driver Assist and/or Take Steering Messages on Start-up, Advanced Driver Assist Systems (ADAS) Features Not Available.
• 10198861May 14, 2021Steering. This service bulletin provides repair information to correct a customer concern of Service Driver Assist and/or Take Steering Messages on Start-up, Advanced Driver Assist Systems (ADAS) Features Not Available.
• 10197297May 14, 2021Electronic stability control. This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
• 10197296May 13, 2021Equipment. This Preliminary information communicates information on how dealers can contact the supplier for Associated Accessories offered through GM.
• 10199234May 12, 2021Electrical system, Latches, locks and linkages. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 10198843May 12, 2021Latches, locks and linkages. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 10200103May 11, 2021Electrical 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 Malfunction Indicator Lamp illuminated on the Driver Information Center (DIC).
• 10197321May 11, 2021Brakes. Service Update Bulletin. Certain vehicles may have an erratic signal coming from the engine manifold absolute pressure (MAP) sensor. Customers may notice the service engine soon (SES) lamp illuminate or was illuminated and turned off. DTC?s P0106 and P0108 may also be present as active or stored in history. Dealers will replace the MAP sensor.
• 10197293May 11, 2021Electrical system. This Preliminary information communicates the Radio may stay on after ignition off and door opened if there is an Over The Air update pending and to review SI document ID 5778263 for Over The Air update description and operation.
• 10197292May 11, 2021Electrical system. This Preliminary information communicates information on a No Crank / No Start concern caused by a No Fob Detected message caused by an internal fault of the BCM. Dealer is to replace the BCM to correct this concern.
• 10199258May 10, 2021Electrical system. This technical bulletin provides repair information to correct a customer concern of SUV Vehicle Software Configuration Management Update (VeSCoM).
• 10198867May 10, 2021Equipment, Electrical system. This technical bulletin provides repair information to correct a customer concern of SUV Vehicle Software Configuration Management Update (VeSCoM).
• 10197291May 10, 2021Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the 10L80 transmission part restriction has ended. Technician may now order these transmissions through the regular GM CCA parts process or PQC process for required dealers (Canada).
• 10197290May 10, 2021Engine. This Preliminary information communicates that the performance air cleaner kit (cold air intake system) can only be installed on vehicles that had the option ordered for the vehicle when it was produced. This performance air filter kit can not be installed on vehicles that were not ordered / produced with this option. This document also reinforces, the vehicles that did have the kit ordered and installed, a…
• 10200095May 7, 2021Body and structure. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to paint concerns with the front and/or rear fascias.
• 10199253May 7, 2021Electrical system. This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
• 10198862May 7, 2021Engine cooling. This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
• 10200106May 6, 2021Electrical system, Equipment. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to concerns with the front center floor power console function and/or appearance issues.
• 10199249May 6, 2021Equipment. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10198858May 6, 2021Tires. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10200104May 4, 2021Equipment. This engineering information (EI) requests dealership personnel involve GM Engineering in the event an Owner is in Receipt of a PAI (Proactive Alert Identifier) "SAC003" and/or the Dealer is informed of excessive Parasitic Drains on an in-inventory vehicle.
• 10199271May 3, 2021Engine. This service bulletin provides diagnostic information for a customer concern of engine vibration.
• 10199265May 3, 2021Back-over prevention (rear camera). This service bulletin provides information for customers/dealers/technicians on Normal Rearview Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Rear View Camera Display.
• 10199260May 3, 2021Electrical system. This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
• 10199238May 3, 2021Engine, Electrical system. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
• 10198880May 3, 2021Engine cooling. This service bulletin provides diagnostic information for a customer concern of engine vibration.
• 10198874May 3, 2021Back-over prevention (rear camera). This service bulletin provides information for customers/dealers/technicians on Normal Rearview Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Rear View Camera Display.
• 10198869May 3, 2021Equipment. This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
• 10198847May 3, 2021Engine cooling. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
• 10197280May 3, 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.
• 10194079Apr 30, 2021Transmission and drivetrain. This Warranty Admin service 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 for Canadian Dealers only.
• 10193477Apr 29, 2021Electrical system. This Preliminary information communicates to the technition instructions to replace the particulate matter sensor for a P1488 and to use the special labor operation for tracking purposes.
• 10194114Apr 23, 2021Equipment. This service bulletin provides information regarding Witness Marks from Panel Adjustments Made During Manufacturing and that it is considered a normal condition.
• 10194090Apr 23, 2021Transmission and drivetrain. This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.
• 10193473Apr 23, 2021Engine. 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.
• 10195126Apr 22, 2021Engine. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10194127Apr 21, 2021Equipment. Service Update - Certain 2021 model year Chevrolet Suburban, Tahoe, and GMC Yukon, Yukon XL vehicles may have been built with 3rd row head restraints that will not stay up after being folded forward, due to an internal spring tab breaking. Dealers will replace the structural core of the 3rd row headrests only.
• 10194104Apr 19, 2021Electrical system. This service bulletin provides a procedure to splice in a missing circuit to correct a condition where certain electronics and lighting installed after an upfit will not work in accessory mode.
• 10193458Apr 19, 2021Engine. 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
• 10193457Apr 19, 2021Suspension, Electronic stability control. This Preliminary information communicates an issue with how to properly inspect and ensure the air lines for the air suspension system are fully seated.
• 10194101Apr 16, 2021Equipment. 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 (U.S. Only).
• 10194123Apr 15, 2021Body and structure, Equipment. Service Update Bulletin. On certain vehicles equipped with radio suppression equipment (RPO UN9), the body to chassis ground fasteners may be missing. Dealers are to add the missing fasteners.
• 10194091Apr 15, 2021Equipment. This technical bulletin provides repair information to correct a customer concern of Long Range Radar setting DTC U3000 49.
• 10193454Apr 15, 2021Back-over prevention (rear camera). This Preliminary information communicates that engineering is investigating a repair for a chirp noise associated with the front axle assembly.
• 10194081Apr 13, 2021Equipment. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
• 10195128Apr 9, 2021Suspension. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
• 10193447Apr 9, 2021Equipment. This Preliminary information communicates to the dealer technician that the valve body Part Unique Number (PUN) may contain the letter O or the number 0.
• 10193446Apr 9, 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,P3189, P318A, P318B, P318C, P318D, P318E, P318F, P3190 Possible broken valve spring.
• 10194084Apr 8, 2021Equipment. This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.

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