Most common 2004 Chevrolet Blazer problems
Share of the 50 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Chevrolet Blazer complaints by model year
Best Blazer years: 2022, 2019, 2021. Years to avoid: 2025, 2024, 1995, 1996, 1997. Compare all years →
2004 Chevrolet Blazer recalls (1)
Equipment › Other › Labels
Certain pickup trucks and sport utility vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 208, "occupant crash protection."
Remedy: Owners will be provided with correct labels and installation instructions. Owner notification began on June 4, 2004. Owners should contact Chevrolet at 1-800-630-2438 or GMC at 1-866-996-9463.
What 2004 Chevrolet Blazer owners say
Electrical system
Tl 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. Other failures included replacing the battery when the vehicle was only one year old, cd player, door locks, clock, and interior lighting malfunction, and failure attempting to remove the key from the ignition. The driver's side door almost fell off completely and had to be lifted approximately three inches in order for it to close. …
Tl contact owns a 2004 Chevrolet Blazer. When the contacts wife went to start the vehicle, it failed to start. She looked under the hood and tapped the battery cables with a hammer. The vehicle restarted and she shut the hood. While driving 60 MPH, the hood popped open and smashed into her windshield, causing the glass to shatter. She pulled over and attempted to close the hood, but it would not budge. She managed to drive the vehicle back to her residence. The contact was able to shut the hood and tie it securely with a rope. He drove the vehicle to the dealer. The contact believes that this is a manufacturer defect. The current and failure mileages were 31,662. The consumer provided the registration, bill of sale, service invoices, vehicle inspection and GM vehicle summary. The dealer stated intermittent incorrect turn signal operation. …
Brakes
Brake line corroded through and lost rear brakes during stop--dealer unable to repair properly---part no longer available thru gen motors--went out during stop on highway --no damage to vehicle or people--grosely longer distance to stop safely.
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.
Body & structure
While driving in the parking lot of lowes, the door hinge on drivers side failed along with latch allowing it fall off. Making door unclosable and car undrivable. After taking it to repair shop, mechanic showed me several other 2004 Chevy blazers with the exact same hinge failure. He has repaired so many of them with the same problem he concluded it must be a defect. Repair cost for this are estimated at $1K as the hinge must be replaced and re enforced, along with the drivers door and locking latch.
While making a right turn into a parking lot, my driver's door flew open. Now the door will not stay closed. I am able to manually move the latch with the door open but it will not engage to secure the door shut.
2004 Chevrolet Blazer engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.3L 6-cyl | 4-speed automatic | RWD | 14 / 19 / 16 |
| 4.3L 6-cyl | 5-speed manual | RWD | 14 / 19 / 16 |
| 4.3L 6-cyl | 4-speed automatic | 4WD/AWD | 13 / 17 / 15 |
| 4.3L 6-cyl | 5-speed manual | 4WD/AWD | 13 / 18 / 15 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2004 Chevrolet Blazer a good car?
Based on 50 owner complaints filed with NHTSA, the 2004 Blazer rates better than average: 87% fewer complaints than a typical year of the Blazer at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2004 Chevrolet Blazer?
The electrical system — 10 complaints, 20% of all complaints for this model year, most often about alternator/generator/regulator. Next are the brakes (7) and body & structure (6).
How many recalls does the 2004 Chevrolet Blazer have?
There is 1 recall for the 2004 Chevrolet Blazer, the most recent from March 18, 2004 (labels). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Chevrolet Blazer?
The best years by complaints, compared at the same age, are 2022, 2019 and 2021. Years to avoid or approach with caution: 2025, 2024, 1995, 1996 and 1997. See the full Chevrolet Blazer years comparison.
At what mileage do 2004 Chevrolet Blazer problems happen?
The median mileage reported in complaints is about 38,000 miles; 59% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.