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Service bulletins for the 2021 Chevrolet Suburban

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1440 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT5807A2022-02-14. Service bulletin. BACK OVER PREVENTION. This Preliminary information communicates and issue with unwanted content theft alarm going off for no reason and to reprogram the BCM to correct the issue.
21NA2872022-02-14. Service bulletin. SEATS:MID/REAR ASSEMBLY. This technical bulletin provides repair information to correct a customer concern of a sticky comfort adjuster handle release, seat tracks out of sync on left rear 40 % seat.
21NA2372022-02-14. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM. THis technical bulletin provides a procedure to perform a cooling system flush to remove possible debris from the cooling system pipes.
N202317390 Repro2022-02-07. Service bulletin. SERVICE BRAKES. Customer Satisfaction Program. Reprogramming resumed message.
N202317390 Repro2022-02-07. Service bulletin. SERVICE BRAKES. Customer Satisfaction Program. Reprogramming suspended message.
N202313960 Deale2022-02-07. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Customer Satisfaction. Additional units added to population.
PIP5828B2022-01-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This Preliminary information communicates to technicians the need to reflash the reductant controller for a P205B intermittently setting.
PIP5828A2022-01-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. This Preliminary information communicates to technicians the need to reflash the reductant controller for a P205B intermittently setting.
PIT5865A2022-01-24. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: OTHER; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE. This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.
PIP58322022-01-24. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This Preliminary information communicates to the dealer an issue where a vehicle may be exhibiting an engine noise condiion. The dealer is instructed on how to isolate the noise to a specific area of the engine for further diagnosis.
PIP5628E2022-01-24. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIT58742022-01-24. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. This Preliminary information communicates an issue with the GDS2 scan tool not being able to communication with the front view camera module and provides a work around until GDS2 is fixed.
PIT5801B2022-01-24. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This Preliminary information communicates an issue with how to properly inspect and ensure the air lines for the air suspension system are fully seated.
PIT5828A2022-01-24. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. 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.
PIE06712022-01-03. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Rattle Type Noise Heard Coming from Rear Liftgate.
PIE0662A2022-01-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Reductant Tank Temperature Sensor Performance and/or Service Emissions System Message on Driver Information Center (DIC), DTC P205B Set.
030310007K2022-01-03. Service bulletin. TIRES; WHEELS. This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires.
030091001H2022-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:STEERING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.
21NA2812021-12-27. Service bulletin. POWER TRAIN. This service bulletin provides diagnostic information for technicians in cases of an ETRS system fault or a no start condition - If the vehicle needs to be moved, it is recommended to use wheel dollies, tire skates or the NEW Manual Park Release tool DT-52910.
21NA2722021-12-27. Service bulletin. EQUIPMENT; ENGINE; ENGINE AND ENGINE COOLING. This service bulletin provides information on Engine Oil Consumption Guidelines.
21NA2712021-12-27. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT. TGhis bulletin advises the technician of a possible coolant hose that might be kinked causing the customers concern.
21NA2672021-12-27. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin advises the technician of a possible location that a leak may occur from the SCT pipe.
21NA2442021-12-27. Service bulletin. EQUIPMENT; ENGINE; ELECTRICAL SYSTEM. This service bulletin provides a repair procedure to correct a customer concern of a No Fob detected message on Driver Information Center (DIC) and/or No Crank / No Start condition.
21NA2432021-12-27. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Short Range Radar (SRR) with DTC U3000 49 Set.
21NA2372021-12-27. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. THis technical bulletin provides a procedure to perform a cooling system flush to remove possible debris from the cooling system pipes.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.