Tahoe 4WD

1,060 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

• May 14, 2026UNKNOWN OR OTHERPIT5509M

  This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

• May 11, 2026UNKNOWN OR OTHERPIC6551B

  This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

• May 11, 2026UNKNOWN OR OTHERPIC6423A

  Pi created to provide GM dealers with information on gathering information for projection issue

• May 11, 2026ENGINEN262552620

  Certain vehicles may have a condition that could cause the cylinder 2 glow plug to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate and a diagnostic trouble code will set. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts,

• May 4, 2026UNKNOWN OR OTHERPIT6247B

  This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.

• Apr 25, 2026UNKNOWN OR OTHERPIT6511

  This Preliminary information communicates an issue with a replace or low FOB battery message

• Apr 20, 2026UNKNOWN OR OTHERPIT6507

  This PI communicates information on a SPS programming issue causing Serial Data Authentication Configuration to fail.

• and 1,052 more

Source: NHTSA manufacturer communications (technical service bulletins).