"How reliable is the 2003 Chevrolet Blazer?"

"Based on 103 NHTSA complaints, the 2003 Chevrolet Blazer has a median complaint mileage of 43800 miles. The most common issue is Air Bags."

"What are common problems with the 2003 Chevrolet Blazer?"

"The most frequently reported component in NHTSA complaints for the 2003 Chevrolet Blazer is Air Bags, accounting for a significant portion of the 103 total complaints filed."

2003 Chevrolet Blazer: Reliability Data

Source: NHTSA — 103 complaints

103

Total Complaints

43,800mi

Median Mileage

Air Bags

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

16,203 25th Percentile

43,800 Median Mileage

87,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Air Bags

Automatic Transmission

Electrical System

Frontal

Fuel System, Gasoline

Body

Engine And Engine Cooling

Service Brakes

Door

Sun/Moon Roof Assembly

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHILE TRAVELING AT 40 MPH, CONSUMER STATES ANOTHER VEHICLE TRAVELING IN FRONT CAME TO A SUDDEN STOP. CONSUMER REAR ENDED THAT VEHICLE, AND NONE OF CONSUMER AIRBAGS DEPLOYED. PLEASE PROVIDE ANY FURTHER INFORMATION. PH"

"WHILE DRIVING AT 55 MPH , VEHICLE WOULD NOT ACCELERATE AND IT FELT LIKE IT WAS IN NEUTRAL GEAR. VEHICLE ALMOST GOT HIT BY ONCOMING TRAFFIC. A SENSOR IN ENGINE CAUSED TRANSMISSION TO GO OUT OF DRIVE GEAR. *AK"

"CONSUMER HAS A NEW 2003 BLAZER. THE BRAKE FLUID IS CONTAMINATED. DEALER NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION.*AK"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Air Bags 10 complaints

25th: 81,500 mi Median: 138,300 mi 75th: 174,750 mi

Automatic Transmission 7 complaints

25th: 16,547 mi Median: 21,000 mi 75th: 55,986 mi

Electrical System 6 complaints

25th: 37,000 mi Median: 115,000 mi 75th: 155,984 mi

Fuel System, Gasoline 4 complaints

25th: 11,000 mi Median: 21,018 mi 75th: 58,777 mi

Where Are Complaints Coming From?

Top states by complaint count.

PA: 15 MI: 11 NJ: 10 CA: 9 NY: 7 FL: 6 OH: 5 TX: 5 RI: 4 GA: 3

Who Files Complaints?

23.3%

Original Owners

76.7%

Second+ Owners

Chevrolet Blazer — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	42	-	Antilock/Traction Control/Electronic Limited Slip	4
1991	267	110,000	Antilock/Traction Control/Electronic Limited Slip	36
1992	337	87,860	Antilock/Traction Control/Electronic Limited Slip	57
1993	616	115,000	Antilock/Traction Control/Electronic Limited Slip	81
1994	774	118,000	Antilock/Traction Control/Electronic Limited Slip	114
1995	1707	96,000	Antilock/Traction Control/Electronic Limited Slip	201
1996	1579	84,500	Antilock/Traction Control/Electronic Limited Slip	196
1997	1098	83,037	Antilock/Traction Control/Electronic Limited Slip	72
1998	1022	70,000	Windshield Wiper/Washer	58
1999	612	72,691	Antilock/Traction Control/Electronic Limited Slip	53
2000	884	62,229	Automatic Transmission	67
2001	464	58,000	Antilock/Traction Control/Electronic Limited Slip	43
2002	301	61,000	Switch	20
2004	67	34,831	Electrical System	6
2006	20	75,200	Fuel System, Gasoline	2
2019	272	26,700	Power Train	5
2020	294	38,000	Power Train	9
2021	171	34,980	Electrical System	5
2022	56	-	Electrical System	2
2023	47	8,500	Engine	7
2024	52	29,000	Electrical System	7
2025	28	-	Unknown Or Other	0

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28