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Service bulletins for the 2021 Chevrolet Silverado

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.

1747 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
PIE0715C2022-12-24. Service bulletin. SUSPENSION. This engineering information (EI) closure ends the need for gathering information from technicians in regards to the front upper control arm ball joint separated from the socket.
PIE0715B2022-12-07. Service bulletin. SUSPENSION. This engineering information (EI) closure ends the need for gathering further information from technicians in regards to the front upper control arm ball joint separated from the socket.
21-NA-1382022-11-03. Service bulletin. SUSPENSION. This service bulletin provides a repair procedure to correct a customer concern of a Squeak, Grind or Clunking Noise from Rear Leaf Springs.
PIE0715A2022-10-12. Service bulletin. SUSPENSION. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the front upper control arm ball joint separated from the socket.
15-00-89-004E2022-10-11. Service bulletin. POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. 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.
PIE07152022-09-07. Service bulletin. SUSPENSION. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the front upper control arm ball joint separated from the socket.
20-NA-0222022-08-03. Service bulletin. SUSPENSION. This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).
PIT5894B2022-07-25. Service bulletin. SUSPENSION; WHEELS. This Preliminary information communicates Some customers may comment on a vibration while driving. The cause of the condition may be that the wheel and tire assemblies require Road Force balance. Please open a Tac case and provide the following information. Check the valve stems are they pointing at each other (lined up)? What wheels is the vehicle equipped with steel or Aluminum? What brand are the tires goodyear or Continental?s? Then follow bulletin 21-NA-270 for repair information
PIE0679A2022-04-06. Service bulletin. STEERING; SUSPENSION. This engineering information (EI) closure ends the need for further information from the field in regards to a Popping Noise Heard On Hard Turns and/or Going Over Speed Bumps, Creaking Noise While Turning Wheel Left and/or Right, Clicking Noise Heard On Slow Sharp Turns.
PIT58942022-03-14. Service bulletin. TIRES; SUSPENSION; WHEELS. This Preliminary information communicates Some customers may comment on a vibration while driving. The cause of the condition may be that the wheel and tire assemblies require Road Force balance. Please open a Tac case and provide the following information. Check the valve stems are they pointing at each other (lined up)? What wheels is the vehicle equipped with steel or Aluminum? What brand are the tires goodyear or Continental?s? Then follow bulletin 21-NA-270 for repair information
21NA2702021-12-27. Service bulletin. SUSPENSION; TIRES. This informational bulletin provides information for dealers/technicians on Vibration Caused by Tires.
PIP58202021-09-13. Service bulletin. WHEELS; TIRES; SERVICE BRAKES; SUSPENSION. This Preliminary information communicates Some customers may comment when coasting to a stop between 15-13 mph there is a shudder type sensation that can also be described as rumble strips in the vehicle that felt when coming to a stop. Upon inspection of concern technician will be able to easily duplicate the concern every time between those speeds. Currently the cause is unknown Engineering is looking it to this concern.
PIP5653K2021-09-13. Service bulletin. SUSPENSION:FRONT. This PI communicates that engineering is investigating a correction to a noise originating in the front of the vehicle.
19NA1292021-07-19. Service bulletin. SUSPENSION. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle.
PIT5403H2021-06-14. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION. 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.
050308002I2021-06-07. Service bulletin. SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
PIP57982021-04-19. Service bulletin. SUSPENSION; STRUCTURE. This Preliminary information communicates Some customers may comment about a rough idle and/or vibration at idle. This condition may be most noticeable when the engine is completely warmed up and accessories are off, you may also feel this while idling at a stop in Drive. May feel like a misfire, stumble, lopey or lumpy idle or may be described as a low idle. This concern may be caused by several potential causes: Misfire and/or base engine concern Wrong fuel used (regular instead of premium when required) Idle speed fluctuation Engine mount pre-load
150089004C2021-03-08. Service bulletin. SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. 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.

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