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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.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT6110A2024-05-10. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is working on a fix.
23-NA-0642024-05-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
20-NA-0222024-05-01. 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).
00-03-10-006P2024-05-01. Service bulletin. WHEELS. This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
N232426401-012024-04-25. Service bulletin. LATCHES/LOCKS/LINKAGES. Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly.
N2324264012024-04-24. Service bulletin. LATCHES/LOCKS/LINKAGES. Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly.
21-NA-1552024-04-23. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; EQUIPMENT. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
20-NA-1322024-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. WHEELS; EQUIPMENT. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
PIT61452024-04-15. Service bulletin. STRUCTURE; ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. This Preliminary information communicates information to verify if the vehicle frame has been lengthened or shorted as a result of the vehicle upfit. Dealer to refer to GM Upfitter bulletin 171 if frame has been modified.
PIT61412024-04-15. Service bulletin. SERVICE BRAKES. This Preliminary information communicates information on where to install check ball and cap if it separates from the brake booster pump motor.
PIT61372024-04-15. Service bulletin. SERVICE BRAKES. This Preliminary information communicates an issue with clearing DTC: C15DD and how to rest the average release time to clear DTC.
PIC6486E2024-04-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.
PIT61342024-04-15. Service bulletin. SERVICE BRAKES, AIR:DISC:PADS. This Preliminary information communicates an issue with premature brake pad life and engineering is working on release new pad lining material.
PIT5689G2024-04-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
PIP5843D2024-04-15. Service bulletin. EXTERIOR LIGHTING. This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.
PIP5863B2024-04-15. Service bulletin. EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises to utilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.
PIP5596A2024-04-15. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
PIT5448J2024-04-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.
22-NA-2582024-04-09. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are found to be the cause of the failure of the valve body.
23-NA-1122024-04-05. Service bulletin. STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; STRUCTURE. This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
20-NA-1322024-04-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
19-NA-2552024-04-05. Service bulletin. STRUCTURE. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
10-08-45-001H2024-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
23-NA-1032024-03-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

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