2021 Chevrolet SUBURBAN Manufacturer communications & TSBs.Page 11
Original record summaries, dates and identifiers for this model-year. Records 1,001–1,100 of 1,365, ordered newest first. Dated records on this page: Apr 8, 2021–Aug 6, 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.
Aug 6, 2021Service Bulletin/Repair Instructions
PIP5806B
NHTSA communication ID: 10201306
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with: Overhead Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / DTC's B1A7A and U1121. Dealers are to cycle the power to the overhead console to correct the issue. Engineering has released updated roof consoles to correct this concern. Dealers are to replace the roof console.
Source components: AIR BAGS · EQUIPMENT · POWER TRAIN.
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 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 that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
Source components: AIR BAGS · ELECTRICAL SYSTEM · TRAILER HITCHES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
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 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 technical bulletin provides repair information to correct a customer concern of Tire Pressure Monitor System Sensors Display Dashes with Trailer Connected.
Source components: TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS.
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 Liftgate Ajar Lamp illuminated on Driver Information Center (DIC) with the Liftgate being closed.
Source components: ELECTRICAL SYSTEM · LATCHES/LOCKS/LINKAGES:HATCHBACK/LIFTGATE:LOCK.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
Source components: ELECTRICAL SYSTEM · ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM).
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
Source components: COMMUNICATION: VEHICLE TO INFRASTRUCTURE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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, 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 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
Customer Satisfaction Program. Certain vehicles have 2nd and 3rd row seats which were built with cloth instead of vinyl. Dealers are to replace the 2nd and 3rd row seat cushions and back covers.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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
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 to the Malfunction Indicator Lamp (MIL) illuminated on Driver Information Center (DIC).
Source components: ELECTRICAL SYSTEM · ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides repair information to correct a customer concern of Rear Access Open Message Illuminated in DIC when Liftgate is Closed.
Source components: ELECTRICAL SYSTEM · STRUCTURE:BODY:HATCHBACK/LIFTGATE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.
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
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 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.
Source components: BACK OVER PREVENTION · LANE DEPARTURE.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 having a No Start, Forward Collision Alert, Adaptive Cruise Control and/or Lane Keep Assist Inoperable condition.
Source components: FORWARD COLLISION AVOIDANCE · LANE DEPARTURE.
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 one or more of the following condition Stalls, Crank with no star, Check Engine Lamp illuminated on the Driver Information Center (DIC).
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 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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 Malfunction Indicator Lamp illuminated on the Driver Information Center (DIC).
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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).
NHTSA source summary · Original PDF not reviewed by Recallfolio
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 calibration is needed to make the kit work properly or DTC's may set.
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 paint concerns with the front and/or rear fascias.
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 concerns with the front center floor power console function and/or appearance issues.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
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 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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This service bulletin provides information regarding Witness Marks from Panel Adjustments Made During Manufacturing and that it is considered a normal condition.
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
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary information communicates an issue with how to properly inspect and ensure the air lines for the air suspension system are fully seated.
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 2017-2022 and newer model year vehicles with RPO ATH and AVJ (U.S. Only).
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
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.
NHTSA source summary · Original PDF not reviewed by Recallfolio
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.