2003 Gmc SIERRA problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
206 owner complaints analyzed
6 distinct recall campaigns
55,750 mi median reported failure mileage
Scope: 2003 model year. Data snapshot: . 158 complaints include usable failure mileage.
Most common problems
Service Brakes is the most frequently named component, appearing in 45 of 206 complaints (21.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 88 | 42.7% |
| Steering behavior | 30 | 14.6% |
| Transmission and shifting | 22 | 10.7% |
| Electrical and battery issues | 7 | 3.4% |
| Fuel system concerns | 6 | 2.9% |
| Engine operation | 2 | 1.0% |
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.
| Category | Count |
|---|---|
| Service Brakes | 45 |
| Electrical System: Instrument Cluster/Panel | 19 |
| Service Brakes, Hydraulic | 17 |
| Power Train:Automatic Transmission | 15 |
| Steering | 14 |
| Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip | 11 |
| Vehicle Speed Control | 10 |
| Electrical System | 8 |
Service Brakes: 45; Electrical System: Instrument Cluster/Panel: 19; Service Brakes, Hydraulic: 17; Power Train:Automatic Transmission: 15; Steering: 14; Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip: 11; Vehicle Speed Control: 10; Electrical System: 8
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 46 |
| 25,000 to 49,999 | 27 |
| 50,000 to 74,999 | 21 |
| 75,000 to 99,999 | 30 |
| 100,000 to 149,999 | 24 |
| 150,000 and above | 10 |
Under 25,000: 46; 25,000 to 49,999: 27; 50,000 to 74,999: 21; 75,000 to 99,999: 30; 100,000 to 149,999: 24; 150,000 and above: 10
Under 25,000 miles has the most reports with usable mileage (46). 48 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.
| Category | Count |
|---|---|
| 2002 | 1 |
| 2003 | 25 |
| 2004 | 25 |
| 2005 | 31 |
| 2006 | 18 |
| 2007 | 21 |
| 2008 | 4 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 12 |
| 2012 | 14 |
| 2013 | 21 |
| 2014 | 19 |
| 2015 | 8 |
2002: 1; 2003: 25; 2004: 25; 2005: 31; 2006: 18; 2007: 21; 2008: 4; 2009: 4; 2010: 3; 2011: 12; 2012: 14; 2013: 21; 2014: 19; 2015: 8
Pattern summary
Service Brakes leads the component reports. Braking behavior appears in 88 complaint narratives. Steering behavior appears in 30 complaint narratives. Transmission and shifting appears in 22 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 10016467 · 2003-04-24 (April 24, 2003)
I GOT A NEW 2003 GMC SIERRA 1500 THE FRONT BUMPER START TO SHOW RUST IN UNDER 4000 MILES THEN I GOT OIL CHANGE THE MECHANIC CALL ME AND TOLD ME THAT MY BRAKE ARE SOLID RUST BOTH FRONT ONES THE FRAME IS RUSTING ALL OVER THE PLACE AT 10000 THE STEERING COLUMN KNUCKLE NEAR THE STEERING BOX IS SOLID RUST AND HE SAYS IT IS VERY DANGEROUS TO HAVE THAT RUSTED SO BAD I HAVE SENT 4 EMAILS TO GMC ABOUT IT AND GO TO MARINA GMC IN SAN LEANDRO WHERE I GOT IT FROM THEY TOLD ME THAT ALL OF THEM ARE RUSTING AND THEY NOT GOING TO DO ANY THING ABOUT IT. *NL…
Owner-reported narrative. Look up ODI 10016467 at NHTSA ↗
Owner report 10020309 · 2003-05-21 (May 21, 2003)
WHEN VEHICLE WAS STOPPED ON AN INCLINE WITH GEAR PLACED IN PARK BEFORE ENGAGING PARKING BRAKE THE TRANSMISSION LOCKED IN PARK. IN ORDER TO UNLOCK IT THE CONSUMER HAD TO HAVE THE TOW TRUCK PULL THE VEHICLE IN ORDER TO UNLOCK IT. THE MANUFACTURER ADVISED THAT THIS WAS NORMAL OPERATION. TRUCK IS A 2003 GMC 1/2TON 4-WHEEL DRIVE PICKUP. *NLM
Owner-reported narrative. Look up ODI 10020309 at NHTSA ↗
Owner report 10041913 · 2003-09-29 (September 29, 2003)
WHILE DRIVING DRIVER CAN FEEL KNOCKING IN THE STEERING WHEEL. DEALER HAD TO REPLACE A PART IN THE LOWER STEERING UNIT, BUT DID NOT INFORM THE CONSUMER OF THE PARTS NAME. *AK
Owner-reported narrative. Look up ODI 10041913 at NHTSA ↗
Owner report 10015390 · 2003-04-08 (April 8, 2003)
THE VEHICLE SHIFTED INTO 4 LOW WITHOUT WARNING. *JB
Owner-reported narrative. 3,945 miles reported. Look up ODI 10015390 at NHTSA ↗
Owner report 10015536 · 2003-04-09 (April 9, 2003)
WHILE DRIVING THE FOURTH GEAR OF THE AUTOMATIC TRANSMISSION JUMPED. THE DEALER INSPECTED THE VEHICLE BUT COULD NOT DUPLICATE OR CORRECT THE PROBLEM. *NLM
Owner-reported narrative. Look up ODI 10015536 at NHTSA ↗
Owner report 10071042 · 2004-01-15 (January 15, 2004)
ON MAY 31ST, THE REAR END DIFFERENTIAL ASSEMBLY EXPLODED SENDING THE PINON THRU THE HOUSING AND THE REAR AXLE CAUGHT ON FIRE. THE TRUCK WAS IN THE SHOP (PERRY CHEVEROLET, INC., COLUMBIA, MO)UNTIL 6-9-03. WHEN I ARRIVED IN BOZEMAN, MT ON 7-2-03 I WAS HAVING PROBLEMS WITH THE WIRING. THERE WAS A FIRE WHEN I PLUGGED THE RV ELECTRICAL PLUG INTO THE TRUCK'S TRAILER PLUG. THERE WAS ALSO A BLOWN REAR TAIL LIGHT BULB. IN BOZMAN, THEY REPLACED THE COMPLETE WIRING HARNESS, THE TOW RECEPTACLE AND 2 FUSE KITS. IT WAS THE OPINION OF THE SHOP IN BOZEMA…
Owner-reported narrative. 2,184 miles reported. Look up ODI 10071042 at NHTSA ↗
Owner report 10145413 · 2005-12-15 (December 15, 2005)
DT: THE CONTACT COMPLAINED ABOUT MANY DEFECTS WITH THIS VEHICLE. THE SPEEDOMETER CONTINUALLY HAD AN INACCURATE READ OUT WHILE DRIVING. THE DEALERSHIP BELIEVED THIS FAILURE COULD BE RELATED TO THE WIRING HARNESS. SINCE THEY WERE UNABLE TO DUPLICATE THE PROBLEM NO REPAIRS WERE DONE. ALSO, THE VEHICLE STALLED AT VARIOUS SPEEDS WITHOUT WARNING. WHILE THE STALLING OCCURRED THE CONTACT PRESSED HARD ON THE BRAKES TO ELEVATE THE STALLING. HE BELIEVED THIS WAS DUE TO THE POWER BRAKES. THE VEHICLE STALLED ON OCCASION AND WOULD NOT IMMEDIATELY REST…
Owner-reported narrative. Look up ODI 10145413 at NHTSA ↗
Owner report 10129990 · 2005-07-25 (July 25, 2005)
DT: THE CONSUMER OWNS A 2003 GMC SIERRA. THE CONSUMER STATED HE HAS BEEN HAVING PROBLEMS WITH THE FUEL GAUGE, FUEL PUMP, AND FUEL FILTER. THE FUEL GAUGE DOES NOT WORK, HE HAS TO CONSTANTLY FILL UP HIS TRUCK TO MAKE SURE HE HAS ENOUGH GAS. IT STARTED AT 38000 MILES JUST OUT OF WARRANTY WHEN IT STOPPED WORKING. HE HAD THE PART ESTIMATED BY A MECHANIC AND IT IS GOING TO COST AROUND 700 DOLLARS JUST FOR THE PART. HE DOES KNOW OF OTHER PEOPLE WITH THE SAME TRUCK AND THE SAME TYPE OF PROBLEM. THE FUEL GAUGE READS COMPLETELY WRONG WHEN HE IS ON 3 QUA…
Owner-reported narrative. 38,000 miles reported. Look up ODI 10129990 at NHTSA ↗
Owner report 10132154 · 2005-08-09 (August 9, 2005)
2003 GMC SIERRA DURAMAX 3 INJECTORS FAILED AND REPLACED UNDER WARRANTY @ 25,000 MILES 8 INJECTORS FAILED AND REPLACED @ 35,000 MILES AND REPLACED UNDER WARRANTY 4 INJECTORS FAILED @ 120,000 AND NO WARRANTY COVERAGE OBVIOUSLY THERE IS AN INJECTOR PROBLEM. *NM
Owner-reported narrative. 120,000 miles reported. Look up ODI 10132154 at NHTSA ↗
Owner report 10082863 · 2004-07-28 (July 28, 2004)
I PURCHASED MY 2003 GMC SIERRA Z71 IN AUG. 2003. IN DECEMBER 2003, WHILE PULLING A TRAVEL TRAILOR, THE SERVICE 4-WD LIGHT CAME ON AND THE TRUCK FELT AS IF IT HAD BEEN SHIFTED INTO NEUTRAL.I MANAGED TO GET THE TRUCK TO THE SIDE OF THE ROAD AND READ THE OWNERS MANUAL CONCERNING THE LIGHT. I TURNED THE TRUCK OFF AS THE BOOK SAID AND THEN RESTARTED. THE LIGHT STAYED ON, BUT THE TRUCK DID GO IN GEAR. SINCE THIS TIME, WHEN I PULL THE TRAILOR FOR A LONG PERIOD OF TIME, THE TRUCK WILL AGAIN FEEL AS IF IT IS IN NEUTRAL. I HAVE TO PUT THE TRUCK INTO 2ND…
Owner-reported narrative. Look up ODI 10082863 at NHTSA ↗