Vehicle Data Hub

2004 Chevrolet Blazer problems

NHTSA has received 67 complaints about the 2004 Chevrolet Blazer, and 16% of them involve electrical system. After that come brakes (12%) and body & structure (12%).

At a glance

Complaints
67 filed with NHTSA
Most reported
Electrical system 16% of complaints
Crashes and fires
6 and 0
Injuries and deaths
5 and 0
Typical mileage
35,000 miles 52 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Electrical system 16%
  • Brakes 12%
  • Body & structure 12%
  • Suspension 9%
  • Steering 7%
  • Air bags 4%
  • Engine 4%
  • Lighting 4%
  • Seat belts 4%
  • Tires 4%

When problems show up

Complaints by mileage, 2004 Chevrolet Blazer Complaints by odometer reading in 20,000-mile steps. The median is about 35,000 miles. 0k to 20k miles: 17 complaints 20k to 40k miles: 10 complaints 40k to 60k miles: 10 complaints 60k to 80k miles: 5 complaints 80k to 100k miles: 2 complaints 100k to 120k miles: 2 complaints 120k to 140k miles: 3 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 2 complaints 180k to 200k miles: 0 complaints 200k+ miles: 1 complaints 040k80k120k160k200k miles Typical: 35,000 miles
Based on 52 complaints that include mileage. 71% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles17
20k to 40k miles10
40k to 60k miles10
60k to 80k miles5
80k to 100k miles2
100k to 120k miles2
120k to 140k miles3
140k to 160k miles0
160k to 180k miles2
180k to 200k miles0
200k+ miles1

What the data shows

Among the 52 complaints that report mileage, the typical (median) problem appeared at about 35,000 miles. For electrical system specifically, the median reported mileage is about 28,000 miles (10 complaints with mileage).

Safety-related details: 6 complaints mention a crash; 5 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2004 ranks 21st most-complained-about out of 22 model years of the Chevrolet Blazer with enough data (54 complaints in that window). It is also covered by 1 safety recall campaign.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Tl* the contact owns a 2004 chevrolet blazer. The contact was driving 45 MPH in rainy weather when the vehicle hydro planed and the contact crashed into an unknown object. The contact sustained two broken bones and torn muscles in the elbow of her left arm. The passenger sustained bruising and swelling to the left ankle. The vehicle was not repaired or diagnosed but deemed as destroyed. The manufacturer was not made aware of the defect. The approximate failure mileage was 70,000.

Reported at 70,000 miles, June 2013 CrashInjury

Tl*the contact owns a 2004 chevrolet blazer. While driving 60 MPH the vehicle automatically brakes abruptly. This failure occurred seven times. The mechanic stated that the fuel could be the cause of the failure. Another failure was what the mechanics called surging. She stated that the vehicle automatically surged with speed when accelerating from a stop. In addition, the contact experienced an electric shock from the steering wheel that also shocked her feet. The mechanic confirmed this failure.

Reported at 6,000 miles, November 2004 CrashInjury

Car started making a rattling noise when I turned to the right shortly after having a spring replaced in drivers side front tire. Within a week the rattling progressed to a grinding. Dealership refused to look at it, knowing I was about to go on a long trip. I left for my trip (9 hour drive) after about 5 hours, this grinding noise was constant, then ABS light came on, started messing with my steering, then, while trying to get to a dealership in the closest city ( still an hour away from my destination) tire…

Reported at 27,323 miles, July 2006 Crash

Brake pedal went to floor very slowly. Repaired brakes with all new components; rotors, pads, calipers, new brake fluid. Bled brakes and pedal is still very spongy and pedal will still go down to floor after stopping. Car will not move if you hold the pedal down. Found several complaints on line about spongy brakes on chevrolet cars.is there a problem that I can not find for these cars?

Reported at 89,630 miles, January 2013

Couple week after bought, complete brake failure. Cost 11oo to fix.feb. 26 look out door in morning and air bags exploded and cause all electric system to go out. Brake was on street, air bag was in driveway at home.

Reported at 162,327 miles, February 2018

Other model years of the Blazer

Best and worst years for the Chevrolet Blazer