Silverado 4WD

521 service bulletins filed with NHTSA for this model year

• Jun 5, 2026UNKNOWN OR OTHERPIT6477C

  This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool

• Jun 5, 2026UNKNOWN OR OTHERPIT6426B

  Fog lamp control may be missing from radio display after a BCM update. Engineering is investigating.

• Jun 5, 2026UNKNOWN OR OTHERPIP6123

  Technical Detail: This PI conveys that the vehicles listed may experience a condition where the vehicle is stuck in parallel condition with no codes resulting in slow DC charging and how to remedy this.

• Jun 4, 2026UNKNOWN OR OTHERN252528480

  Certain vehicles may be missing important information regarding the proper use of EV energy offboarding from the vehicle to a building. Vehicle owners will be mailed an insert to include in their Owner Manual. For vehicles in dealer inventory, dealers will install the insert.

• Jun 3, 2026UNKNOWN OR OTHERPIT6503A

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

• May 27, 2026UNKNOWN OR OTHERPIT6519

  This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.

• May 22, 2026UNKNOWN OR OTHERPIT6426A

  If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.

• May 21, 2026UNKNOWN OR OTHERPIT6215C

  This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

• and 513 more

Source: NHTSA manufacturer communications (technical service bulletins).