U.S. public vehicle records

2003 Chevrolet BLAZER problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

77 owner complaints analyzed

1 distinct recall campaigns

45,000 mi median reported failure mileage

Scope: 2003 model year. Data snapshot: 2026-09-12 (September 12, 2026). 49 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Air Bags is the most frequently named component, appearing in 10 of 77 complaints (13.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
Topic	Matching reports	Share of complaints
Braking behavior	12	15.6%
Transmission and shifting	9	11.7%
Steering behavior	5	6.5%
Engine operation	4	5.2%
Electrical and battery issues	4	5.2%
Fuel system concerns	4	5.2%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Air Bags

Power Train:Automatic Transmission

Electrical System

Air Bags:Frontal

Fuel System, Gasoline

Structure:Body

Engine And Engine Cooling

Service Brakes

Air Bags: 10; Power Train:Automatic Transmission: 7; Electrical System: 6; Air Bags:Frontal: 4; Fuel System, Gasoline: 4; Structure:Body: 4; Engine And Engine Cooling: 3; Service Brakes: 3

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

Under 25,000: 16; 25,000 to 49,999: 9; 50,000 to 74,999: 9; 75,000 to 99,999: 3; 100,000 to 149,999: 5; 150,000 and above: 7

Under 25,000 miles has the most reports with usable mileage (16). 28 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2013

2014

2015

2016

2018

2002: 1; 2003: 19; 2004: 15; 2005: 4; 2006: 10; 2007: 1; 2008: 8; 2009: 2; 2010: 2; 2011: 4; 2013: 1; 2014: 6; 2015: 1; 2016: 1; 2018: 2

Pattern summary

Air Bags leads the component reports. Braking behavior appears in 12 complaint narratives. Transmission and shifting appears in 9 complaint narratives. Steering behavior appears in 5 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 10021868 · 2003-05-29 (May 29, 2003)

CONSUMER HAS A NEW 2003 BLAZER. THE BRAKE FLUID IS CONTAMINATED. DEALER NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION.*AK

Owner-reported narrative. Look up ODI 10021868 at NHTSA ↗

Owner report 10029429 · 2003-07-16 (July 16, 2003)

WHILE DRIVING AND APPLYING THE BRAKES PEDAL GO ALL THE WAY DOWN AND TOOK LONGER TO STOP. DEALER HAS INSPECTED VEHICLE, AND COULD NOT DUPLICATE OR CORRECT THE PROBLEM. *AK

Owner-reported narrative. Look up ODI 10029429 at NHTSA ↗

Owner report 10004089 · 2003-01-17 (January 17, 2003)

WHILE DRIVING AT 55 MPH , VEHICLE WOULD NOT ACCELERATE AND IT FELT LIKE IT WAS IN NEUTRAL GEAR. VEHICLE ALMOST GOT HIT BY ONCOMING TRAFFIC. A SENSOR IN ENGINE CAUSED TRANSMISSION TO GO OUT OF DRIVE GEAR. *AK

Owner-reported narrative. 2,500 miles reported. Look up ODI 10004089 at NHTSA ↗

Owner report 10032535 · 2003-08-11 (August 11, 2003)

PURCHASED NEW 2003 CHEVROLET BLAZER WITH MANUAL TRANSMISSION ON 08/08/2003. I DID NOT DRIVE THE CAR ON 08/09/2003, BUT DROVE IT AGAIN ON 08/10/2002. TWICE ON 08/08/2003, AND FOUR TIMES ON 08/10/2003, WHEN STARTING FROM A STOP, I EXPERIENCED A SIGNIFICANT FAILURE OF THE TRANSMISSION, WHICH SUBSTANTIALLY IMPAIRS THE USE AND SAFETY OF THE VEHICLE. IN FIRST GEAR, WITH NO WARNING, EITHER VISIBLE, AUDIBLE, OR TACTILE, THE TRANSMISSION VIOLENTLY THROWS THE GEAR SHIFT LEVER OUT OF FIRST GEAR, BRINGING THE VEHICLE SUDDENLY INTO NEUTRAL. I HAVE PUT A…

Owner-reported narrative. 210 miles reported. Look up ODI 10032535 at NHTSA ↗

Owner report 10043000 · 2003-10-15 (October 15, 2003)

I OWN A NEW 2003 CHEVROLET BLAZER... IT IS ONLY 7 MONTHS OLD WITH ONLY 7,300 MILES ON IT. I WAS DRIVING HOME TONIGHT AND HEARD A " CLICKING NOISE" WHICH SOUNDED LIKE THE TURN SIGNALS WERE ON... THEY WEREN'T... WHEN I PULLED IN MY DRIVEWAY AND TURNED THE BLAZER OFF (KEY SWITCH IN LOCK POSITION) STEERING WHEEL LOCKED IN POSITION, MY BLAZER WAS STILL RUNNING ! MY HEADLIGHTS WERE OFF, MY INSIDE LIGHTS WERE OFF, ALL PANEL LIGHTS WERE OFF, SO MY HUSBAND TURNED THE INSIDE PANEL LIGHTS, SWITCH THE BLAZER TURNED OFF... SOMETHING IS TERRIBLY WRONG WITH T…

Owner-reported narrative. Look up ODI 10043000 at NHTSA ↗

Owner report 10055915 · 2004-01-27 (January 27, 2004)

WHILE DRIVING 36 MPH GOING AROUND CURB, THE STEERING WHEEL FAILED TO RESPOND AND REMAINED IN THE SAME POSITION. THIS CAUSED THE VEHICLE TO VEER TO ONCOMING TRAFFIC AND RESULTED IN A HEAD ON COLLISION. NONE OF THE AIR BAGS DEPLOYED. THE MANUFACTURER OF GMC SENT AN ENGINEER TO SEE THE VEHICLE AND DIDN'T FIND ANYTHING WRONG WITH THE STEERING. GMC DENIED THE REPORT ISSUED BY THE TECHNICIAN ON THIS ACCIDENT. PLEASE PROVIDE DETAILS. *JB

Owner-reported narrative. 15,174 miles reported. Look up ODI 10055915 at NHTSA ↗

Owner report 10115414 · 2005-03-18 (March 18, 2005)

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

Owner-reported narrative. 300 miles reported. Look up ODI 10115414 at NHTSA ↗

Owner report 10247029 · 2008-10-23 (October 23, 2008)

2003 CHEVY BLAZER FUEL PUMP MODULE. CONSUMER FEELS THAT OWNERS OF AFFECTED VEHICLES SHOULD BE AWARE OF THIS BULLETIN. *NJ THE CONSUMER STATED THERE HAD BEEN A HESITATION AND STALLING PROBLEM WITH THE VEHICLE SINCE IT WAS PURCHASED. THE CONSUMER STATED SHE WAS NOT TOLD THERE WAS AN ELECTRICAL CONNECTOR PROBLEM ON THE FUEL PUMP. THE FUEL PUMP WAS REPLACED AND THE HESITATION AND STALLING HAS BEEN RESOLVED. *JB

Owner-reported narrative. Look up ODI 10247029 at NHTSA ↗

Owner report 10167309 · 2006-09-04 (September 4, 2006)

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. …

Owner-reported narrative. 37,000 miles reported. Look up ODI 10167309 at NHTSA ↗

Owner report 10229957 · 2008-06-04 (June 4, 2008)

TL*THE CONTACT OWNS A 2003 CHEVROLET BLAZER. EVERYTIME THE CONTACT OPENS THE DOOR OF THE VEHICLE, THE INTERIOR LIGHTS CONSISTENTLY FLICKER ON AND OFF, ESPECIALLY IN COLD WEATHER. AS A CONSEQUENCE, THE BATTERY AND ALTERNATOR CONTINUE TO FAIL AND NEED REPLACING. THE DEALER STATED THAT THE FAILURES WERE A NORMAL CHARACTERISTIC OF THE VEHICLE AND NO REMEDY WAS AVAILABLE. SECONDLY, HE NOTICED THAT THE FUEL GAUGES WERE INOPERATIVE. WHEN THE FUEL GAUGE DIAL INDICATES THAT THE FUEL LEVEL IS AT HALF A TANK, THE FUEL WARNING LIGHT ILLUMINATES. THIR…

Owner-reported narrative. 36,000 miles reported. Look up ODI 10229957 at NHTSA ↗

Owner report 10068785 · 2004-01-15 (January 15, 2004)

I HAVE A 02 BLAZER AND I BELIEVE THE FUEL GAUGE IS NOT WORKING PROPERLY. AFTER I HAVE GONE ONLY ABOUT 40 MILES ON A FULL TANK OF GAS THE GAUGE SHOWS ? FULL. CAN THAT BE CORRECT? IN THE OWNER?S MANUAL IT STATES THAT I AM TO HAVE AN 18-GALLON FUEL TANK. WITH AN AVERAGE OF 20 MPG ON THE HIGHWAY IT SHOULD GO TO ? TANK AT ABOUT 90 MILES.

Owner-reported narrative. 30,037 miles reported. Look up ODI 10068785 at NHTSA ↗