YearToAvoid

2005 Chevrolet Blazer Reliability Data: Problems & Recalls

Good The 2005 Chevrolet Blazer has a Complaint Index of 20 and ranks 9th worst of 11 model years, but its verdict is capped at Good rather than higher because complaint records for 2005-2009 are less complete. NHTSA lists 15 complaints and no recalls for this year, with Fuel System issues the top concern.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
20/100
#9 of 11 Blazer years
Verdict
Good
vs. other years of this model
Complaints
15
unique NHTSA reports
Recalls
0
distinct NHTSA campaigns
Crashes
0
reported in complaints
Fires
2
Injuries
0
Top issue
Fuel System
Best nearby year
2006
rated Good
NHTSA overall rating
Not rated
EPA combined MPG
15.5
14 city / 19 hwy
Injuries / deaths
0 / 0

Top 2005 Chevy Blazer problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Fuel System7 (47%)
  2. Electrical System5 (33%)
  3. Engine2 (13%)
  4. Airbags1 (7%)
  5. Structure & Body1 (7%)
  6. Visibility & Wipers1 (7%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Fuel gauge reads empty or full incorrectly even after refueling, sometimes causing the vehicle to run out of gas unexpectedly.
  • Fuel pump wiring harness at the gas tank shorts out, causing repeated fuel pump failures.
  • Check engine light stays on while headlights and instrument lights dim or flash during nighttime driving.
  • Speedometer malfunctions, jumping between incorrect speed readings including showing 120 mph while stationary.
  • Vehicle suddenly revs on its own while stopped, raising risk of unintended acceleration into traffic.
  • Rear door has opened unexpectedly while driving, raising ejection risk for unbelted passengers.
2005 Chevrolet Blazer complaints: complaints filed per month2Feb 2009Jan 2010Apr 2010Jun 2010May 2011Oct 2014Apr 2015
15 complaints filed with NHTSA from Feb 2009 to Jan 2016; peak Feb 2009 (2).

2005 Chevrolet Blazer recalls

No safety recalls on record for this model year.

2005 Chevrolet Blazer fuel economy and fuel cost

City
14 MPG
Highway
19 MPG
Combined
15.5 MPG
Annual fuel cost (EPA)
$4,175
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2005 compared with other Blazer years

Complaint Index by model year (0 = fewest issues, 100 = most)025507510020052006200720082019202020212022202320242025
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2005Good2015015.5
2006Good30190—
2007Good1090—

All Chevrolet Blazer years: best and worst →

Frequently asked questions

Is the 2005 Chevrolet Blazer reliable?
NHTSA data shows 15 complaints for the 2005 Blazer with a Complaint Index of 20, ranking it 9th worst out of 11 model years with data. It carries a Good verdict, though that rating is capped because complaint records from 2005-2009 are less complete than later years.
What are the most common problems with the 2005 Chevrolet Blazer?
Fuel System complaints make up 47% of reports, largely involving fuel gauge and fuel pump wiring failures, with a median failure mileage of 75,000. Electrical System issues account for 33% of complaints, including dimming lights and speedometer malfunctions.
Does the 2005 Chevrolet Blazer have any recalls?
NHTSA lists zero recalls for the 2005 Chevrolet Blazer in this data, despite owner complaints mentioning fuel sending unit and airbag concerns.
How does the 2005 Blazer compare to other years?
The 2005 model's Complaint Index of 20 is lower than 2006 (30) but higher than 2007 (10) and 2008 (0). All of these early years carry a Good verdict, unlike 2019-2021, which are rated Avoid with complaint indexes of 80, 100, and 90.
What is the fuel economy of the 2005 Chevrolet Blazer?
EPA rates the 2005 Chevrolet Blazer at 15.5 mpg combined (14 city / 19 highway), with an estimated annual fuel cost of $4,175.

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.