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
2003 Chevrolet Blazer
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2003 Chevrolet Blazer do not stand out strongly from the model-year median of 32.
About this comparison →How this year compares
Owner complaints by model year
Compare all Blazer years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
49 reports with mileage · 28 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Air Bags. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
77 reports1. SPEEDOMETER ACTING ERRATICALLY. 2. DEALER WANTED TO CHARGE $450 DOLLARS TO CHANGE SPEED SENSOR. I TOLD HIM HE WAS CRAZY. THEY RECONNECTED. SPEEDOMETER STARED WORKING AGAIN. 3. 7 MONTHS LATER SPEEDOMETER STARTS ACTING ERRATICALLY. I SEARCH WEBSITES AND FIND THAT MANY OTHER OWNERS OF 2003 TAHOES EXPERIENCE THE SAME THIN…
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1. SPEEDOMETER ACTING ERRATICALLY. 2. DEALER WANTED TO CHARGE $450 DOLLARS TO CHANGE SPEED SENSOR. I TOLD HIM HE WAS CRAZY. THEY RECONNECTED. SPEEDOMETER STARED WORKING AGAIN. 3. 7 MONTHS LATER SPEEDOMETER STARTS ACTING ERRATICALLY. I SEARCH WEBSITES AND FIND THAT MANY OTHER OWNERS OF 2003 TAHOES EXPERIENCE THE SAME THING. ORDERED NEW SPEED SENSOR TO FOR SELF INSTALLATION. YET TO INSTALL. 4. SPEEDOMETER STARTS WORKING AGAIN AFTER BATTERY CHANGED. 5. RUNS FOR 5 DAYS WORKING FINE THEN ACT ERRATIC AGAIN. 6. READY TO CHANGE. 7. THOUGHT I'D COMPLAIN FIRST. THINK THIS IS A SAFETY ISSUE AND SOMETHING SHOULD BE DONE ABOUT IT. *NM
DT*: THE CONTACT STATED THAT BOTH FRONT AIRBAGS OF THE VEHICLE DID NOT DEPLOY DURING A CRASH WHICH OCCURRED WHILE TRAVELING 45 MPH. THE VEHICLE WAS HEADED EAST ON A NARROW, ROUGH, BUMPY ROAD WHEN IT APPROACHED AN INTERSECTION AND STRUCK ANOTHER VEHICLE HEADING NORTH. THE OTHER VEHICLE BRIEFLY STOPPED AT THE STOP SIGN AND PULLE…
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DT*: THE CONTACT STATED THAT BOTH FRONT AIRBAGS OF THE VEHICLE DID NOT DEPLOY DURING A CRASH WHICH OCCURRED WHILE TRAVELING 45 MPH. THE VEHICLE WAS HEADED EAST ON A NARROW, ROUGH, BUMPY ROAD WHEN IT APPROACHED AN INTERSECTION AND STRUCK ANOTHER VEHICLE HEADING NORTH. THE OTHER VEHICLE BRIEFLY STOPPED AT THE STOP SIGN AND PULLED OUT INTO THE INTERSECTION 15 FEET BEFORE THE CONTACT'S VEHICLE REACHED THE INTERSECTION. THIS RESULTED IN THE CONTACT'S VEHICLE CRASHING INTO THE FRONT DRIVER SIDE DOOR OF THE OTHER VEHICLE. BOTH OCCUPANTS WERE WEARING THEIR SEAT BELTS. THE AIRBAG WARNING LIGHT WAS NOT ON PRIOR TO THE CRASH. THE POLICE TOOK PICTURES AND A REPORT WAS FILED. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION.
I BROUGHT THE VEHICLE ON OCTOBER 04, 2005. I HAVE MANY PROBLEMS WITH THIS VEHICLE. I DON'T EVEN KNOW WHAT TO DO ANYMORE. I HAVE CONTACTED THE DEALERSHIP PLENTY OF TIMES BUT THEY ARE NO HELP AT ALL. THE VEHICLE HAS A TRANSMISSION PROBLEM. I HAVE TAKEN I IT TO THE MECHANIC BUT THEY HAVEN'T BEEN ANY HELP EITHER. I HAVE TRIED MANY T…
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I BROUGHT THE VEHICLE ON OCTOBER 04, 2005. I HAVE MANY PROBLEMS WITH THIS VEHICLE. I DON'T EVEN KNOW WHAT TO DO ANYMORE. I HAVE CONTACTED THE DEALERSHIP PLENTY OF TIMES BUT THEY ARE NO HELP AT ALL. THE VEHICLE HAS A TRANSMISSION PROBLEM. I HAVE TAKEN I IT TO THE MECHANIC BUT THEY HAVEN'T BEEN ANY HELP EITHER. I HAVE TRIED MANY TIMES TO GET THE DEALERSHIP TO HELP SINCE IT HASN'T EVEN BEEN A YEAR SINCE I BROUGHT IT BUT THEY JUST TOLD ME YOU BROUGHT IT SO IT'S YOUR PROBLEM. FOR THAT REASON I WANT TO CANCEL THE PURCHASE OF THE VEHICLE. *JB
I BROUGHT THE VEHICLE ON OCTOBER 04, 2006. I HAVE MANY PROBLEMS WITH THIS VEHICLE. I DON'T EVEN KNOW WHAT TO DO ANYMORE. I HAVE CONTACTED THE DEALERSHIP PLENTY OF TIMES BUT THEY ARE NO HELP AT ALL. THE VEHICLE HAS A TRANSMISSION PROBLEM. I HAVE TAKEN IT TO THE MECHANIC BUT THEY HAVEN'T BEEN ANY HELP EITHER. I HAVE TRIED MANY TIM…
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I BROUGHT THE VEHICLE ON OCTOBER 04, 2006. I HAVE MANY PROBLEMS WITH THIS VEHICLE. I DON'T EVEN KNOW WHAT TO DO ANYMORE. I HAVE CONTACTED THE DEALERSHIP PLENTY OF TIMES BUT THEY ARE NO HELP AT ALL. THE VEHICLE HAS A TRANSMISSION PROBLEM. I HAVE TAKEN IT TO THE MECHANIC BUT THEY HAVEN'T BEEN ANY HELP EITHER. I HAVE TRIED MANY TIMES TO GET THE DEALERSHIP TO HELP ME SINCE IT HASN'T EVEN BEEN A YEAR SINCE I BROUGHT IT BUT THEY JUST TOLD ME THAT I BOUGHT IT SO IT'S MY PROBLEM. FOR THAT REASON I WANT TO CANCEL THE PURCHASE OF MY VEHICLE. *JB
CONSUMER REQUESTING ANY INFORMATION GIVEN ON THE 2003 BLAZER. *TS *JB
CHEVROLET BLAZER WOULD REV UP AND AFTER A YEAR BEGAN TO RUN A LITTLE HOTTER THAN IT SHOULD FOR NO REASON. I HAD IT CHECKED MANY TIMES. A FEW MONTHS AGO I WAS TOLD IT WAS A BAD SENSOR. WAS THIS A DEFECT FROM THE VERY BEGINNING. IT DOES NOT REV UP NOW. HAS ANYONE ELSE HAD THIS PROBLEM. *NM
2003 CHEVY BLAZER TRANSFER CASE CONTROL MODULE PROBLEM CAUSING IT TO HAVE TROUBLE SHIFTING THE TRANSMISSION. *TS ***NO ANSWER REQUIRED*** AFTER THE REPAIRS WERE MADE, THE NEXT DAY, THE CONSUMER EXPERIENCED TRANSMISSION PROBLEMS AGAIN. THE CONSUMER HAD PROBLEMS SHIFTING TO AND OUT OF 4 LOW, AND IT WOULD NOT GO INTO 4 HIGH. WH…
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2003 CHEVY BLAZER TRANSFER CASE CONTROL MODULE PROBLEM CAUSING IT TO HAVE TROUBLE SHIFTING THE TRANSMISSION. *TS ***NO ANSWER REQUIRED*** AFTER THE REPAIRS WERE MADE, THE NEXT DAY, THE CONSUMER EXPERIENCED TRANSMISSION PROBLEMS AGAIN. THE CONSUMER HAD PROBLEMS SHIFTING TO AND OUT OF 4 LOW, AND IT WOULD NOT GO INTO 4 HIGH. WHEN THE CONSUMER WAS DRIVING DOWN HILL IN THE SNOW, HE APPLIED THE BRAKES AND THE VEHICLE SPUN OUT OF CONTROL AND STOPPED AGAINST A GUARDRAIL. THERE WAS MINOR DAMAGE TO THE FRONT BUMPER AND VALANCE PANEL. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHERE THE TRANSFER CASE CONTROL MODULE WAS REPLACED AGAIN. *JB
HVAC MODE SWITCH STUCK IN VENT MODE 2ND TIME THIS HAPPENS . 1ST TIME WAS IN JULY OF THIS YEAR. *NM
VEHICLE STALLED WHILE DRIVING, BUT WILL RESTART WHEN KEY WAS TURNED IN THE IGNITION. VEHICLE WAS SERVICED 5 TIMES IN WHICH A DIAGNOSTIC TEST WAS PERFORMED, NO FAILURE CODE FOUND. THEN, DEALERSHIP REMOVED THE AUTOMATIC STARTER SYSTEM, AND THE VEHICLE ONLY STALLED ONCE. A YEAR LATER, THE SERVICE ENGINE LIGHT CAME ON WHILE DRIVIN…
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VEHICLE STALLED WHILE DRIVING, BUT WILL RESTART WHEN KEY WAS TURNED IN THE IGNITION. VEHICLE WAS SERVICED 5 TIMES IN WHICH A DIAGNOSTIC TEST WAS PERFORMED, NO FAILURE CODE FOUND. THEN, DEALERSHIP REMOVED THE AUTOMATIC STARTER SYSTEM, AND THE VEHICLE ONLY STALLED ONCE. A YEAR LATER, THE SERVICE ENGINE LIGHT CAME ON WHILE DRIVING. DEALERSHIP REPLACED THE COMPUTER CHIP, BUT THE LIGHT CAME BACK ON. *AK
Official recalls
104V132000 · Equipment:other:labels
Mar 18, 2004
CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION."
Consequence & remedy
Consequence: SOME OF THESE VEHICLES INCLUDE INCORRECT STATEMENTS ON ONE OF THE AIR BAG WARNING LABELS.
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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