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
| 19NA218 | 2022-05-31. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine. |
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| 22-NA-087 | 2022-05-18. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; ENGINE. This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set. |
| N212353390 | 2022-05-17. Service bulletin. EQUIPMENT:ELECTRICAL. Service Update Bulletin. Certain vehicles that had the Serial Data Gateway Module (SDGM) replaced in service, may not have been programmed correctly resulting in an incomplete registration of the new module. Dealers are to reprogram the SDGM. |
| PIP5776G | 2022-05-16. Service bulletin. ENGINE AND ENGINE COOLING. 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. |
| PIP5794B | 2022-05-16. Service bulletin. POWER TRAIN. 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. |
| PIC5260E | 2022-05-16. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks. |
| PIP5822B | 2022-05-16. Service bulletin. WHEELS. This Preliminary information communicates to technicians to advise dealership technicians to inspect the camshaft exciter wheel and replace it if necessary. |
| PIT5885A | 2022-05-16. Service bulletin. AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE. This Preliminary information communicates an issue with an SIR MIL with DTC B14DC caused by the air bag connector contacting the foam in the drivers seat. Dealer to remove the foam that is contacting the air bag connector. |
| PIT5768B | 2022-05-16. Service bulletin. STRUCTURE; STRUCTURE:BODY:HATCHBACK/LIFTGATE. This Preliminary information communicates and issue with a rattle noise from the liftgate/liftglass and how to make adjustment to correct the noise. |
| 12-00-89-003B | 2022-05-10. Service bulletin. EQUIPMENT:ELECTRICAL; ENGINE. This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only). |
| PIE0693 | 2022-05-06. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Oil Leaking from Front of Engine. |
| PIE0677B | 2022-05-06. Service bulletin. EQUIPMENT. This engineering information (EI) closure ends the need for further information from the field in regards to Power Floor Console Armrest will not lock in place and/or the console lid slides back and forth freely. |
| 22-NA-080 | 2022-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder. |
| 22-NA-070 | 2022-05-03. Service bulletin. EQUIPMENT. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements. |
| 22-NA-057 | 2022-05-03. Service bulletin. STRUCTURE. This technical bulletin provides a procedure replace the tappet that is located on the fuel door. |
| 22-NA-027 | 2022-05-03. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin advises to replace the camshaft cover if found within the Julian date and the cause of a customer concern of possible oil consumption with or without DTC P06DD. |
| 22-NA-082 | 2022-04-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set. |
| 21-NA-166 | 2022-04-29. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling. |
| 01-00-89-010P | 2022-04-29. Service bulletin. EQUIPMENT. This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern. |
| PI0281I | 2022-04-22. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; STRUCTURE. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers. |
| 22-NA-052 | 2022-04-21. Service bulletin. STRUCTURE:BODY:DOOR; ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of DTC B1038 SYM64 set in the BCM and Door Ajar Message on Driver Information Center (DIC). |
| PIP4670J | 2022-04-18. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles. |
| PIP5845 | 2022-04-18. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This Preliminary information communicates to the dealer technician that if the vehicle's engine coolant reservoir has transmission fluid in it or if Glycol it found in the transmission fluid the dealer should replace the Automatic Transmission Fluid Cooling Exchanger. The dealer should refer to bulletin 08-07-30-035 for the recommended components that should be replaced in the transmission and to flush the engine cooling system following service information. |
| PIT5888A | 2022-04-18. Service bulletin. SUSPENSION. This Preliminary information communicates an issue with the air leveling suspension losing air pressure in very cold temperatures while sitting for several hours. Dealers are to replace both the front air springs. |
| PIT5734D | 2022-04-18. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.