NHTSA Complaint #11699508 — 2022 CHEVROLET TRAILBLAZER

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11699508
Vehicle	2022 CHEVROLET TRAILBLAZER
Component	ENGINE
Date of Incident	November 13, 2025
Date Filed	November 15, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

The three bolts at the flange attaching the muffler to the upper muffler sheared off due to rust and the whole rear muffler fell off when driving the car on an interstate. Car is 3 years old and at the time had 65,000 miles. The bolts used are of poor quality, and to make matters worse, there is no exhaust hanger near this flange so the muffler is supported at the front by just this flange. Poorly designed by GM.

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