YearToAvoid

2005 Chevrolet Trailblazer Ext 370 Engine Problems

NHTSA has 22 owner complaints about engine problems in the 2005 Chevrolet Trailblazer Ext 370, 9% of all 237 complaints for this model year. That is the highest engine complaint count among 2 Trailblazer Ext 370 model years. Median mileage at failure: 76,186 miles.

Engine complaints
22
9% of 237 complaints
All complaints this year
237
Crashes reported
0
Fires reported
0
Injuries reported
0
Median mileage
76,186 mi
Related recalls
0

When 2005 Chevrolet Trailblazer Ext 370 engine complaints were filed

First complaint Aug 16, 2006, latest Dec 29, 2019.

2005 Chevrolet Trailblazer Ext 370 engine complaints: complaints filed per month5Aug 2006May 2009Mar 2010Aug 2011Jun 2014Feb 2016
22 complaints filed with NHTSA from Aug 2006 to Dec 2019; peak Feb 2010 (5).

Engine recalls for the 2005 Chevrolet Trailblazer Ext 370

No safety recalls on record for this model year.

Engine complaints by Trailblazer Ext 370 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200522 (9%)
  2. 20063 (19%)

Frequently asked questions

Does the 2005 Chevrolet Trailblazer Ext 370 have engine problems?
NHTSA has 22 owner complaints about the engine in the 2005 Chevrolet Trailblazer Ext 370, 9% of all complaints for this model year. Median mileage at failure is 76,186 miles.
Which Chevrolet Trailblazer Ext 370 year has the most engine complaints?
The 2005 Chevrolet Trailblazer Ext 370 has the most engine complaints (22), compared with 22 for the 2005.
Is there a engine recall for the 2005 Chevrolet Trailblazer Ext 370?
No NHTSA recall campaign for the 2005 Chevrolet Trailblazer Ext 370 is classified under engine. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.