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
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system18
  2. Air bags16
  3. Structure13
  4. Power train13
  5. Fuel system, gasoline9
  6. Engine and engine cooling8
  7. Exterior lighting7
  8. Suspension5
  9. Steering5
  10. Visibility4
  11. Fuel system, other4
  12. Service brakes, hydraulic4
  13. Service brakes3
  14. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20021
200323
200417
200510
200611
200712
20088
20094
20103
20114
20120
20131
20146
20151
20161
20170
20182

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.

03 —Owner reports

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.”
Owner complaint to NHTSAFiled Dec 20, 2015Electrical system, Air bags, Service brakesCrash reportedODI 10811339

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.”
Owner complaint to NHTSAFiled Feb 28, 2018Air bagsCrash reportedODI 11075512

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…”
Owner complaint to NHTSAFiled Sep 20, 2016Structure, Service brakes, Fuel/propulsion systemODI 10908257

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”
Owner complaint to NHTSAFiled Oct 22, 2006Power trainODI 10171554

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.”
Owner complaint to NHTSAFiled May 6, 2011Fuel system, gasolineODI 10399347

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”
Owner complaint to NHTSAFiled Dec 30, 2008Engine and engine coolingODI 10253199
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.