Suburban 2WD

967 service bulletins filed with NHTSA for this model year

• 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,

• 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.

• Apr 1, 2026UNKNOWN OR OTHERPIT3271Q

  This preliminary information communicates information about how to determine if a wheel and tires size change is available.

• Mar 9, 2026UNKNOWN OR OTHERPIP6104

  This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

• and 959 more

Source: NHTSA manufacturer communications (technical service bulletins).