Problems · by component
2003 Chevrolet Trailblazer Ext service brakes, hydraulic problems
33 owner complaints to NHTSA about the 2003 Chevrolet Trailblazer Ext cite service brakes, hydraulic, 3% of all 1,255 complaints for this model year.
Complaints
33
3% of all complaints
Crashes
5
Reported by owners
Fires
0
Reported by owners
Injuries
2
Reported by owners
What owners say about the service brakes, hydraulic
Verbatim from NHTSA complaints, newest first
“TL* THE CONTACT OWNS A 2003 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE KEY COULD BE REMOVED WHILE THE VEHICLE WAS IN GEARS OTHER THAN PARK. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION SWITCH AND THE ABS FAILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNAVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. UPDATED 12/9/14* CN UPDATED 8/31/2017*CN”
“TL* THE CONTACT OWNS A 2003 CHEVROLET TRAILBLAZER. THE CONTACT WAS DRIVING 29 MPH ON AN ICY ROAD AND ATTEMPTED TO APPLY THE BRAKES. THERE WAS NO TRACTION AND THE VEHICLE SLID INTO TRAFFIC, CRASHING INTO ANOTHER VEHICLE. THE CONTACT WAS NOT INJURED. THE DRIVER OF THE SECOND VEHICLE SUSTAINED UNKNOWN INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE FRONT PASSENGER'S SIDE WHEEL HUB AND SENSOR NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 73,000 AND THE CURRENT MILEAGE WAS 73,400.”
“DRIVING APPROX 70MPH ON THE HIGHWAY, SUDDENLY HEARD A "WHAP WHAP WHAP" NOISE COMING FROM THE BACK OF THE VEHICLE. I SLOWED DOWN, AND THE SOUND DIMINISHED. ARRIVING HOME, I FOUND THAT THE CENTER BRAKE LIGHT ASSEMBLY HAD COME LOOSE AT BOTH ENDS. THE TWO CENTER CONNECTIONS LUCKILY HELD, OR ELSE THE PIECE WOULD HAVE COME OFF THE CAR AND POSSIBLY CAUSED AN ACCIDENT. I HAVE READ THAT OTHER TRAILBLAZERS HAVE HAD THE SAME ISSUE. *TR”
“PANEL CLUSTER FAILED WITH RED BLARING EMERGENCY LIGHT STAYS ON AND CAUSES VEHICLE LIGHTS TO STAY ON. ALSO CAUSES VEHICLE NOT TO SHIFT PROPERLY. ALL DASHBOARD COMPONENT INDICATOR FAILS WHICH HAZARDOUS TO SAFETY OF INDIVIDUAL. *TR”
“HEARD FUNNY NOISE COMING FROM VEHICLE. AFTER THAT THE CARS BATTERY WOULD BE DEAD. COULD RECHARGE BATTERY BUT IT WOULD BE DEAD THE NEXT DAY. TOOK IT IN TO A PRIVATE SHOP WHERE IT WAS FOUND THAT THE ABS MODULE UNDER THE FRAME WAS CORRODED AND DRAWING DOWN THE BATTERY BY GROUNDING ON THE FRAME. IT ALSO DESTROYED A COMPUTER AND TWO PLUGS ON THE TRANSMISSION NEUTRAL SAFETY SWITCH. TOTAL REPAIRS TO VEHICLE TOTALED OVER $2,300.00. *TR”
“THE CARS COMPUTER CODE ON DASH READ OUT THAT SERVICE BRAKES WAS REQUIRED WITH A RINGING TONE. THE ABS LIGHT AND THE BRAKE LIGHT WERE ALSO ON. THIS LED ONE TO BELIEVE THAT THE VEHICLE COULD BE AN ISSUE WITH SAFETY. WE DROVE STRAIGHT TO THE GARAGE. A CODE C0265 WAS FOUND ON THE COMPUTER BY THE TECHNICIAN. $91.00 WAS CHARGED FOR A POOR GROUND BEING REDONE ON THE EBCM. NHTSA ITEM NUMBER 10022470 IS APPLICABLE. WE WERE LUCKY TO BE WITHIN A BLOCK OF A DEALER. THIS IS A 2003 CHEVROLET TRAILBLAZER, WITH ONLY 37616 MILES. FROM FEBRUARY 2003 UNTIL NOVEMBER 2006 THE CAR WAS GARAGED IN MONTANA. NOVEMBER 2006 TILL PRESENT THE CAR IS GARAGED IN WI. WHY SHOULD THE OWNER HAVE TO PAY FOR AN APPARENT GROUND ISSUE DEFECT PROBLEM? THIS IS DEFINITELY A SAFETY ISSUE BECAUSE THE ABS SYSTEM IS DISABLED ON THE CAR. *TR”
Showing 6 of 33 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.