Check a VIN

June 2, 2022 Service bulletin

This service bulletin provides repair information to correct a customer concern of Intermittent Door Locks...

Chevrolet technical service bulletin 21-NA-183 for 2019-2022 Chevrolet Blazer, 2017-2022 GMC Acadia and 2018-2022 Chevrolet Traverse and others.

Bulletin number
21-NA-183
Component
Equipment
Summary
This service bulletin provides repair information to correct a customer concern of Intermittent Door Locks Inoperative, DTCs B3125, B3130, B3135, B3979, B3980, Various U codes, IP Lamps Illuminate, Immobilizer, Unwanted Horn or Hazard Flasher Operation.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Chevrolet Blazer?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history