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Service bulletins for the 2021 Chevrolet Tahoe

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.

1477 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Glass, wipers and mirrors are shown. Show all

Bulletins, newest first
PIT58682021-12-13. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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.
21NA1522021-08-09. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; EQUIPMENT. This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint percentage.
20NA2192021-07-19. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. 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.
20NA2192021-07-06. Service bulletin. VISIBILITY. 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.
20NA2192021-02-22. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; VISIBILITY:SUN/MOON ROOF ASSEMBLY. 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.
20NA2192021-02-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT. 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.
PI0754D2020-12-21. Service bulletin. VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; VISIBILITY:GLASS, SIDE/REAR. This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
20NA2192020-12-21. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT. 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.
PIT57612020-12-14. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates an issue with a gurgle noise from the sunroof drains and advises customers to turn on the HVAC blower to clear the drain.
N2023112602020-10-26. Service bulletin. VISIBILITY; BACK OVER PREVENTION. Service Update Bulletin - Certain 2021 model year Chevrolet Suburban, Tahoe, and GMC Yukon vehicles may have a kink in the rear camera washer hose. Dealers will inspect for functionality of the full display mirror (FDM) camera wash, and, if necessary, add a protective sleeve and trim the hose.
PIT57612020-09-14. Service bulletin. EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary information communicates an issue with a gurgle noise from the sunroof drains and advises customers to turn on the HVAC blower to clear the drain.

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