2021 Chevrolet TAHOE Manufacturer communications & TSBs.Page 13
Original record summaries, dates and identifiers for this model-year. Records 1,201–1,300 of 1,474, ordered newest first. Dated records on this page: Dec 16, 2020–Apr 7, 2021.
Read the applicability before drawing a conclusion.
This archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.
NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.
Apr 7, 2021Service Bulletin/Repair Instructions
PIP5794A
NHTSA communication ID: 10193436
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates diagnostics to the dealer involving a vehicle shudder concern caused by the camshaft actuator system that can be mistaken for a transmission issue.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to replace the video player and reprogram to correct the condition of Non-Responsive Touch on Rear Seat Infotainment Left Screen .
Source components: BACK OVER PREVENTION:DISPLAY FUNCTION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to the dealer technician to replace the transmission valve body on 2019-2021 10 speed transmissions to correct DTCs P2812 and P2814 setting if Service Information does not lead to root case of these DTCs.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a condition where the radio may display a :connection not availale, please call OnStar agent". This bulletin advises that Engineering is working on a software solution that will prevent the message from displaying when listening to non-SXM sources, but still allow the message to display when a loss of connectivity exists and the user is attempting to play Sirius XM.
Source components: BACK OVER PREVENTION:SOFTWARE · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a condition where the the customer may see a SD card remove message accompanied by a 0X40000 code on the DIC or radio display. This PI offers some testing tips and advises on direction depending on the tests and procedures outlined in the PI
Source components: BACK OVER PREVENTION:DISPLAY FUNCTION · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates diagnostics to the dealer involving a vehicle shudder concern caused by the camshaft actuator system that can be mistaken for a transmission issue.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issues will low or poor heater performance on the drivers side. Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to dealership technicians to perform a sweep of the coolant flow control valve and test the circuits before replacing the Engine Coolant Flow Control Valve, and to assist engineering in root causing the P2B60.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Sensor Performance), P0108 (Manifold Absolute Pressure Sensor Circuit High) and/or P00C7 (Intake Air Pressure Measurement System Sensor and Multiple Sensors Correlation) codes active or stored in history. This condition may be caused by a faulty Manifold Absolute Pressure (MAP) sensor.
Source components: BACK OVER PREVENTION · SERVICE BRAKES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 being misshaped. Technicians are instructed to replace the cooler line if it is misshaped.
Source components: FUEL SYSTEM, GASOLINE · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates to the dealer technician that the 10L80 transmission has been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 2021 and newer model year vehicles with RPO ATH (U.S. Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Sensor Performance), P0108 (Manifold Absolute Pressure Sensor Circuit High) and/or P00C7 (Intake Air Pressure Measurement System Sensor and Multiple Sensors Correlation) codes active or stored in history. This condition may be caused by a faulty Manifold Absolute Pressure (MAP) sensor.
Source components: BACK OVER PREVENTION · SERVICE BRAKES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
Source components: ENGINE AND ENGINE COOLING · POWER TRAIN.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin describes the TLC/SPS2 Module Programming Requirements for Vehicles Using GM?s New Vehicle Intelligence Platform (VIP) Module Architecture.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides repair information to correct a customer concern of paint chipping or peeling on front fascia, at interface of front fender and fascia near headlamp.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTCs U1961, U1983 setting.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. Certain vehicles may have incorrect calibration values in the Vehicle Leveling Module (VLM) software for air ride adaptive suspension. The incorrect calibration will use the incorrect loaded ride height which is 0.6 inches lower that the normal ride height. Dealers are to reprogram the VLM module.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates and issue with a SES MIL and the BCM keeping the ignition main relay on after the vehicle is turned off. Dealers are to replace the BCM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering has releasing updated cals to correct the concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards one or more camera views showing, intermittent behavior and/or totally inoperative.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates and issue with a SES MIL and the BCM keeping the ignition main relay on after the vehicle is turned off. Dealers are to replace the BCM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer Satisfaction Program (Revised Service Procedure). Certain vehicles may have a condition in which the brake system control module (BSCM) may set and latch an internal fault in the module?s on-board diagnostics (OBD) buffer. When the fault is present, no malfunction indicator lamp (MIL) is illuminated and there is no driver information center (DIC) message. If an over the air (OTA) software update is pushed to an OBD module and the customer accepts it through the Infotainment system, the update will fail because the presence of the active fault will block the OTA update. The customer may notice that the OTA update has failed with an error message on the DIC. This fault is not visible through dealer tools. Dealers are to reprogram the BSCM.
Source components: AIR BAGS · ELECTRICAL SYSTEM · EXTERIOR LIGHTING · SEATS · VEHICLE SPEED CONTROL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. On certain vehicles the clamp may not be properly aligned and positioned on the hose, or the hose is rolled over on the pump port. The improper assembly can quickly develop into a significant leak early in the truck?s life. As the coolant level drops, a Low Coolant Warning or potential for engine overheat with DIC message is possible. Dealers are to inspect for both the vertical and horizontal hose at the auxiliary coolant pump, and repair as needed.
Source components: ENGINE AND ENGINE COOLING · FUEL SYSTEM, GASOLINE · LANE DEPARTURE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides repair information to correct a customer concern of Assist Step Running Boards Inoperable and Not Functioning with Door Operation.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update - Certain 2021 vehicles have a condition where, if an over the air (OTA) update was sent to an affected vehicle, the update would fail. Customers will see the update is available, but after accepting and attempting to install, they will receive an update failed message. Dealers will replace the radio.
Source components: BACK OVER PREVENTION:SOFTWARE · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the power liftgate inoperative.
Source components: ELECTRICAL SYSTEM · STRUCTURE:BODY:HATCHBACK/LIFTGATE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that some customers may comment on a rattle, flutter, flapping, and/or wind type noise from the front end caused by either the left or right front inner wheel well liner having excessive movement.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates that some customers may comment on a rattle, flutter, flapping, and/or wind type noise from the front end caused by either the left or right front inner wheel well liner having excessive movement.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the airbag lamp illuminated on the driver?s information center (DIC).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the airbag lamp illuminated on the driver?s information center (DIC).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp being illuminated.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer Satisfaction Program - vehicles may have a condition in which the trailering label has zeroedout information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating(TWR) and Max Tongue Weight may show a zero instead of the proper amounts. Install the updated label. Because this label can easily be installed by the customer, and to reduce their inconvenience,labels and installation instructions will be mailed to customers of record.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer Satisfaction Program - vehicles may have a condition in which the trailering label has zeroedout information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating(TWR) and Max Tongue Weight may show a zero instead of the proper amounts. Install the updated label. Because this label can easily be installed by the customer, and to reduce their inconvenience,labels and installation instructions will be mailed to customers of record.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer Satisfaction Program - vehicles may have a condition in which the trailering label has zeroedout information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating(TWR) and Max Tongue Weight may show a zero instead of the proper amounts. Install the updated label. Because this label can easily be installed by the customer, and to reduce their inconvenience,labels and installation instructions will be mailed to customers of record.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp being illuminated.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Customer Satisfaction Program - vehicles may have a condition in which the trailering label has zeroedout information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating(TWR) and Max Tongue Weight may show a zero instead of the proper amounts. Install the updated label. Because this label can easily be installed by the customer, and to reduce their inconvenience,labels and installation instructions will be mailed to customers of record.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with the 3rd Row Seat Headrest not returning to the upright position after cycling the seat and to install a headrest repair kit.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with the 3rd Row Seat Headrest not returning to the upright position after cycling the seat and to install a headrest repair kit.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have been built with a cracked steering gear ballnut which could result in noise and reduction of steering performance. Dealers are to replace the steering gear.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have been built with a cracked steering gear ballnut which could result in noise and reduction of steering performance. Dealers are to replace the steering gear.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have been built with a cracked steering gear ballnut which could result in noise and reduction of steering performance. Dealers are to replace the steering gear.
Source components: BACK OVER PREVENTION · STEERING.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. A small number of vehicles may have been built with a cracked steering gear ballnut which could result in noise and reduction of steering performance. Dealers are to replace the steering gear.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with the 110 volt power outlets not resetting if overloaded and causing the customer to take the vehicle to the dealership to have it reset. Engineering has released updated cals to correct this concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.
Source components: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.