Blazer (2003)
Reliability Score
Complaints by Engine Code
LU3 90 Degrees
4.3L 6-cylView details
Complaint Breakdown
Chevrolet Blazer Unidentified Engine
View details
Complaint Breakdown
Show 2 additional engine variants with limited data
LL8
4.2L 6-cylView details
Complaint Breakdown
L35
4.3L 6-cylView details
Complaint Breakdown
Owner Complaints by System
Complaints owners filed with NHTSA about the Chevrolet Blazer, counted across every engine. A complaint can name more than one system.
What to check on a used 2003 Chevrolet Blazer
On a used 2003 Chevrolet Blazer, the systems with the most NHTSA owner complaints are the body and structure (14), the airbags and driver-assist systems (13) and the transmission and drivetrain (12). Each one has an inspection step below, with counts as of 2026-10-12. A complaint is an owner report, not a confirmed defect, and counts rise with sales.
- Open and close every door, the hood and the trunk or hatch. Check the latches, the seals and the gaps between panels.Minor. NHTSA has 14 owner complaints on the 2003 Chevrolet Blazer about the body and structure.
- Switch the ignition on and watch the airbag light. On the drive, check the backup camera and any collision or lane warning.Safety. NHTSA has 13 owner complaints on the 2003 Chevrolet Blazer about the airbags and driver-assist systems.
- Accelerate gently through every gear, then once at full throttle. Shift into Reverse and back to Drive.Costly repair. NHTSA has 12 owner complaints on the 2003 Chevrolet Blazer about the transmission and drivetrain.
- Let the engine idle for five minutes, walk around the car and smell for fuel.Safety. NHTSA has 10 owner complaints on the 2003 Chevrolet Blazer about the fuel system.
- On an empty road, brake firmly from 40 mph with a light grip on the wheel.Safety. NHTSA has 8 owner complaints on the 2003 Chevrolet Blazer about the brakes.
Recalls (1)
CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION."
NHTSA Safety Ratings About NHTSA ratings
Alternatives in Midsize SUV
Frequently Asked Questions
What are the most common 2003-2003 Chevrolet Blazer complaints?
Owners have filed 75 complaints with NHTSA about the 2003-2003 Chevrolet Blazer. The systems they name most often are the body and trim, the safety systems and the transmission.
Is the 2003-2003 Chevrolet Blazer a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 75 complaints with NHTSA about the 2003-2003 Chevrolet Blazer. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2003-2003 Chevrolet Blazer have?
NHTSA has 75 owner complaints on file for the 2003-2003 Chevrolet Blazer as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2003-2003 Chevrolet Blazer?
NHTSA lists 1 recall covering some 2003-2003 Chevrolet Blazer vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Chevrolet Blazer?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the body and trim, the safety systems and the transmission, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
What are the NHTSA crash test ratings for the Blazer?
The 2003 Chevrolet Blazer received an overall N/A-star safety rating from NHTSA. Frontal crash: N/A stars. Side crash: N/A stars. Rollover: 2 stars. Electronic Stability Control: No. Forward Collision Warning: No. Lane Departure Warning: No. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 75 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-12.