Problems · NHTSA complaints
2003 Chevrolet Blazer problems
Owners filed 104 complaints about the 2003 Chevrolet Blazer with NHTSA between Dec 2002 and Feb 2018. The most-cited component is electrical system (18).
Complaints
104
Filed with NHTSA
Crashes
15
Reported by owners
Fires
0
Reported by owners
Injuries
5
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Electrical system18
- Air bags16
- Structure13
- Power train13
- Fuel system, gasoline9
- Engine and engine cooling8
- Exterior lighting7
- Suspension5
- Steering5
- Visibility4
- Fuel system, other4
- Service brakes, hydraulic4
- Service brakes3
- Fuel/propulsion system2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 8, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
23
17
10
11
12
8
4
3
4
0
1
6
1
1
0
2
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2002 | 1 |
| 2003 | 23 |
| 2004 | 17 |
| 2005 | 10 |
| 2006 | 11 |
| 2007 | 12 |
| 2008 | 8 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 4 |
| 2012 | 0 |
| 2013 | 1 |
| 2014 | 6 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 2 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Electrical system
18 reports1 crash
“TAKATA INFLATORS: I HAD LEFT MY HOUSE HEADED TO WORK AT APPROXIMATELY 6:30 AM AND GOT ON I40 EASTBOUND, IT HAD SNOWED THE DAY BEFORE AND THE ROADS HAD BEEN TREATED AND WERE CLEAR FOR TRAVEL, I WAS TRAVELING ON A 3 LANE HIGHWAY IN THE LEFT LANE @ APROX 50MPH AND I APPLIED MY BRAKES TO DO UPCOMING TRAFFIC, WHEN THE ABS SYSTEM LOCKED. I ATTEMPTED TO LET OFF AND RE APPLY THE BRAKE BUT THE ABS SYSTEM JUST STAYED ENGAGED AND THE FRONT END STARTED SLIDING HARD TO THE LEFT AND I STEERED AWAY FROM THE PULL. I SUBSEQUENTLY HIT THE CENTER CONCRETE WALL AT APPROX. 40MPH WITH THE FRONT PASSENGER SIDE OF MY CAR, WHICH CAUSED ME TO SPIN AROUND AND HIT THE PASSENGER REAR, I CONTINUED TO SPIN UNTIL I WAS FACING BACK EAST. MY AIR BAGS DID NOT DEPLOY BUT IT CAUSED SEVERE DAMAGE TO CORE SUPPORT AND PASSENGER SIDE FRAME HORN. IT WAS A SINGLE VEHICLE ACCIDENT AND NO DAMAGE WAS DONE TO ANYTHING BUT MY VEHICLE AND MYSELF, THE ABS DID NOT RELEASE WITHIN WHAT I APPROXIMATE TO BE ABOUT 6 SECONDS AND THIS SO CALLED SAFETY DEVICE NEARLY KILLED ME. I WAS WEARING MY SEAT BELT.”
Air bags
16 reports12 crashes
“REAR ENDED A STOPPED PICK UP AT 45 MPH AND AIR BAGS DID NOT DEPLOY. IT WAS ON A HIGHWAY WHERE THE SPEED LIMIT IS 55. THE WHOLE FRONT END WAS DAMAGED BUT MOST WAS ON DRIVER SIDE.”
Structure
13 reports1 crash
“I PURCHASED THIS VEHICLE IN FEBRUARY 2015 WITH 71,000 - THE BODY WAS VERY WELL KEPT INSIDE AND OUT. WHAT I DIDN'T KNOW WAS THE EXTENSIVE AMOUNT OF RUST AND CORROSION UNDER THE VEHICLE, WHICH DID NOT SHOW INITIALLY. I HAVE ONLY HAD SAME A LITTLE OVER A YEAR AND HAVE HAD TO ALREADY REPLACE FRONT ARM JOINTS BECAUSE THEY SNAPPED IN HALF AND MY TIRE WAS SITTING CROOKED AND IN DANGER OF FALLING OFF!! FUEL LINES HAD TO BE REPLACED BECAUSE THEY COMPLETED RUSTED THROUGH AND GASOLINE WAS LEAKING OUT ALL OVER. THE DRIVER DOOR WAS CHECKED 2X AS IT DOES NOT SHUT CORRECTLY AND I CAN HEAR WIND GETTING INTO THE VEHICLE WHILE DRIVING (NOT TO MENTION WATER POURING IN OVER THE DRIVER'S SIDE DOOR AND DOOR CONTROLS), THE BRAKES GO COMPLETELY TO THE FLOOR (DESPITE BEING FIXED), THE ABS LIGHT AND CHECK ENGINE LIGHT STAY ON DESPITE BEING CHECKED - THIS TRUCK DESIGN IS TERRIBLE AND IT NOW RIDES AND SOUNDS LIKE A BUCKET OF BOLTS. I HAVE HAD MANY TRUCKS FROM GMC JIMMY, CHEVROLET TRAILBLAZER, ETC. - I HAVE NEVER HAD ONE THAT HAS GONE COMPLETELY SOUR IN SO SHORT A TIME. I HAVE ALSO READ THE NUMEROUS ACCOUNTS OF PEOPLE IN ACCIDENTS WITH THIS YEAR VEHICLE AND THE BRAKES FAILING AND AIRBAGS…”
Power train
13 reports1 crash
“WE BOUGHT A 2003 CHEVY BLAZER IN JULY 2006 WITH 18,700 MILES. WHEN IN CRUISE CONTROL AT HIGHWAY SPEED, THE TRANSMISSION WILL DOWNSHIFT INTO 2ND GEAR INSTEAD OF 3RD GEAR TO MAINTAIN SPEED UP A SLIGHT INCLINE. THIS HAS HAPPENED NUMEROUS TIMES SINCE PURCHASE. *NM”
Fuel system, gasoline
9 reports
“TL*THE CONTACT OWNS A 2003 CHEVROLET BLAZER. THE CONTACT STATED THE VEHICLE EXPERIENCED AN ONGOING FAILURE IN WHICH THE FUEL GAUGE CONSTANTLY DISPLAYED AN IMPROPER READING. THE CONTACT ALSO STATED DUE TO THE FAILURE THE VEHICLE STALLED WHILE DRIVING AT VARIOUS SPEEDS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON NUMEROUS OCCASIONS IN WHICH THE FAILURE WAS NEVER DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 12,000 AND THE CURRENT MILEAGE WAS 60,000. THE VIN WAS UNAVAILABLE.”
Engine and engine cooling
8 reports
“I WAS OUT LATE IN A DESOLATE AREA-NO HOUSES-NO STORES. I SMELLED BURNING RUBBER SO BAD I THOUGHT THE CAR WAS ON FIRE. I HAD NO ALTERNATIVE BUT TO CONTINUE DRIVING. I WAS TERRIFIED, I AM A SENIOR CITIZEN-FEMALE ALONE. I REFUSED TO DRIVE IT ANYWHERE ONCE IT WAS PARKED. MY MECHANIC WAS KIND ENOUGH TO PICK IT UP. THE DEALER WOULD NOT. IT WAS THE INTAKE MANIFOLD. THE CAR ONLY HAS 44,000 MILES ON IT. IT COST ME $466.26. I WAS TRULY TERRIFIED. *TR”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.