Avalanche 1500 2WD

287 service bulletins filed with NHTSA for this model year

• 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.

• Mar 9, 2026UNKNOWN OR OTHERPIP4902V

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

• Jan 16, 2026UNKNOWN OR OTHERPIT6400A

  This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.

• Jan 8, 2026UNKNOWN OR OTHERPIP4902U

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

• Nov 20, 2025UNKNOWN OR OTHERPIT5214G

  This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further sup

• Sep 9, 2025UNKNOWN OR OTHER13598

  New Vehicle Monitoring Programs Section in IVH

• Aug 14, 2025UNKNOWN OR OTHERPIP4902T

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

• and 279 more

Source: NHTSA manufacturer communications (technical service bulletins).