🚗 AutoDefect IQ

2004 Chevrolet Blazer problems, complaints & recalls

Most-reported problem areas: Service Brakes (4) · Structure:body (3) · Electrical System (3)

🧭 Reliability snapshot

100 /100
✓ Typical or better for this model

Compared against other Chevrolet Blazer model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 17 complaints 17 <25k 25–50k miles: 6 complaints 25–50k 50–75k miles: 6 complaints 50–75k 75–100k miles: 3 complaints 75–100k 100–125k miles: 4 complaints 100–125k 125–150k miles: 1 complaints 125–150k 150k+ miles: 2 complaints 150k+

39 NHTSA complaints that reported an odometer reading.

50
Complaints
0
Recalls
413
Service bulletins
4
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (413)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Unknown Or Other 2025-07-18 · PIP5601C · Service Bulletin/Repair Instructions

this pi communicates the requirement to provide a pico file to receive diagnostic assistance from tac.

Unknown Or Other 2025-02-20 · PIP5358D · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. technician should get record a sound clip or take a video of the noise for assessment by engineering. technician will need to

Electrical System 2024-10-25 · PIP4723J · Service Bulletin/Repair Instructions

this preliminary information communicates to the dealer the process for downloading or updating operating software for the tire pressure monitor, active fuel injector tester, multi media tester, pico scope, gr8 starting/charging tester  and vehicle data recorder tools, giving website address and ste

Unknown Or Other 2024-09-12 · PIT5099H · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about vehicles that the heater-vent-air conditioning blows warm air. before calling general motors technical assistance center technician will need to have high and low pressures, outside temperature, humidity, and ven

Unknown Or Other 2024-09-12 · PIT5099H · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about vehicles that the heater-vent-air conditioning blows warm air. before calling general motors technical assistance center technician will need to have high and low pressures, outside temperature, humidity, and ven

Unknown Or Other 2024-09-06 · PIT3271P · Service Bulletin/Repair Instructions

this preliminary information communication provides information to the technician about changing the tire and wheel size on vehicles. general motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. technician s

Showing the 6 most recent of 413 bulletins. Search all of them free at nhtsa.gov.

What owners report

2018-03-08 · Service Brakes · 162,327 mi

“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.…”

2018-02-27 · Air Bags · 83,000 mi

“woke up in morning after storm and looked out to find that the air bag in blazer had exploded out. shut all system off.? the blazer was and is still stationary in driveway.…”

2016-01-06 · Service Brakes · 70,139 mi

“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.…”

2014-12-04 · Structure · 121,000 mi

“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. *tr…”

2014-11-13 · Service Brakes · 105,000 mi

“after replacing brake pads on vehicle i was pumping brakes to bleed out air in the lines and the pedal went to the floor. upon inspection the brake line ruptured due to excessive corrosion. required 100% replacement of all brake lines. *tr…”

2014-08-15 · Structure:body · 125,173 mi

“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 …”

2014-07-01 · Electrical System:ignition · 60,000 mi

“tl* the contact owns a 2004 chevrolet blazer. the contact stated that the key became lodged in the ignition switch. the vehicle was taken to the dealer. the techncian diagnosed that the ignition was defective and needed to be replaced. the manufacturer was made aware of the failure. the vehicle was not repaired. the failure mileage was 60,000 and …”

2014-07-01 · Steering

“the problem is with the ignition. the key does not release after it has been turned to the off position. the car must be turned back on and often moved in reverse then forward a number of times before the key will release from the ignition . *tr…”

2014-05-12 · Seat Belts

“2004 chevrolet blazer. consumer writes in regards to passenger seat belt problems. *smd the consumer stated the seat belt would not extend. the dealer indicated the belt was probably knotted within the mechanism. he stated the cost for the part and labor would be around $300.00. *jb…”

2014-04-07 · Service Brakes · 89,630 mi

“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 prob…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Chevrolet Blazer years