GM Releases Fix For 2021-2022 Chevy Blazer Auto-Dimming Mirror Issue
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GM has issued a service bulletin regarding a fix for an improperly functioning auto-dimming mirror on certain units of the 2021 Chevy Blazer and 2022 Chevy Blazer.
The problem: affected units were equipped with driver-side auto-dimming outside mirror that doesn’t dim when it should.
The fix: certified GM technicians will be instructed to inspect the auto-dimming mirror and replace the wiring harness if necessary. This program will be in effect until January 31st, 2025.
Affected components: driver-side auto-dimming mirror.
Affected vehicles:
It’s worth noting that the way this issue affects the Blazer differs by model year and trim level. On the 2021 Blazer, the driver-side auto-dimming outside mirror was optional on 1LT and 2LT trim levels, standard on 3LT, RS and Premier, and not offered at all on base L. Meanwhile, the 2022 Blazer saw the removal of the two lower-end trims. As such, the driver-side auto-dimming outside mirror on 2022 models was optional on the 2LT trim level and standard on 3LT, RS and Premier.
Number of affected vehicles: it’s unclear at this time how many vehicles are affected by this issue.
Owners should: dealers will contact owners of affected vehicles in order to schedule an appointment to replace the faulty wiring harness. It should take certified GM technicians roughly an hour to preform the service and replace the front side door harness.
Contacts:
- Chevy Customer Service: 1-800-222-1020
- Customer Satisfaction Program Number: N222359240
As a reminder, lower trim levels of the 2022 Chevy Blazer are powered by the turbocharged 2.0L I4 LSY gasoline engine, which is rated at 228 horsepower and 258 pound-feet of torque, while higher trim levels feature the naturally aspirated 3.6L V6 LGX gasoline engine, which develops 308 horsepower and 270 pound-feet of torque. The Blazer rides on the GM C1 platform, starting with the 2019 model year.
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