GMC GMC TRUCK · model year

2003 GMC GMC TRUCK

23 NHTSA complaints for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2003GMCGMC TRUCK carries 23 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 GMC TRUCK is power train:automatic transmission with 4 filings, followed by engine and engine cooling:engine (2) and tires:tread/belt (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.

NHTSA currently has 2 investigation files overlapping the 2003 GMC TRUCK. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

23
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

23 filings

Crashes Reported

0 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
POWER TRAIN:AUTOMATIC TRANSMISSION4
ENGINE AND ENGINE COOLING:ENGINE2
TIRES:TREAD/BELT2
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL2
VEHICLE SPEED CONTROL1
STRUCTURE:BODY:BUMPERS1
EXTERIOR LIGHTING:HEADLIGHTS1
PARKING BRAKE1
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC1
EQUIPMENT1
STEERING:RACK AND PINION1
POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)1
ELECTRICAL SYSTEM1
FUEL SYSTEM, OTHER1
SERVICE BRAKES, HYDRAULIC1

Recent Complaints

20110119SERVICE BRAKES, HYDRAULIC

BRAKE LINES, TRANSMISSION LINES AND ENGINE COOLANT LINES ALL FAILING ON 2003 GMC 2500 HD SIERRA AS WELL AS ON 2004 CHEVY SILVERADO HD 3500. THESE PROBLEMS HAVE CAUSED NUMEROUS AMOUNTS OF TIME TO REPAIR AND REPLACE, AND TODAY THERE WAS A CATASTROPHIC BRAKE FAILURE ON THE 2003 HD GMC WHICH ALMOST RESULTED IN A DEADLY ACCIDENT. THESE LINES SHOULD NOT HAVE RUSTED THEY WAY THEY ARE ESPECIALLY ON TWO (2) DIFFERENT VEHICLES FROM THE SAME MANUFACTURER. THESE VEHICLES WERE PRODUCED WITH INADEQUATE PARTS FOR ALL LINES ON THE UNDERSIDE OF VEHICLE. THERE SHOULD NOT BE 1,000 PLUS COMPLAINTS FROM CONSUMERS REGARDING THE RUSTING OF THESE COMPONENTS, OF WHICH HAVE CAUSED SEVERAL MAJOR AND LIFE SAFETY ISSUES. THE BRAKE LINES ARE AN INTEGRAL PART OF ANY VEHICLE AND TO HAVE THEM RUST THRU TO THE DEGREE OF ALL THE COMPLAINTS THERE IS OBVIOUSLY AN ISSUE WITH THE COMPONENT THE MANUFACTURER INSTALLED ON THESE VEHICLES. BETWEEN OUR 2003 AND 2004 GMC AND CHEVY TRUCKS RESPECTIVELY, WE HAVE REPLAC

Mileage: 70,000

20110119POWER TRAIN

BRAKE LINES, TRANSMISSION LINES AND ENGINE COOLANT LINES ALL FAILING ON 2003 GMC 2500 HD SIERRA AS WELL AS ON 2004 CHEVY SILVERADO HD 3500. THESE PROBLEMS HAVE CAUSED NUMEROUS AMOUNTS OF TIME TO REPAIR AND REPLACE, AND TODAY THERE WAS A CATASTROPHIC BRAKE FAILURE ON THE 2003 HD GMC WHICH ALMOST RESULTED IN A DEADLY ACCIDENT. THESE LINES SHOULD NOT HAVE RUSTED THEY WAY THEY ARE ESPECIALLY ON TWO (2) DIFFERENT VEHICLES FROM THE SAME MANUFACTURER. THESE VEHICLES WERE PRODUCED WITH INADEQUATE PARTS FOR ALL LINES ON THE UNDERSIDE OF VEHICLE. THERE SHOULD NOT BE 1,000 PLUS COMPLAINTS FROM CONSUMERS REGARDING THE RUSTING OF THESE COMPONENTS, OF WHICH HAVE CAUSED SEVERAL MAJOR AND LIFE SAFETY ISSUES. THE BRAKE LINES ARE AN INTEGRAL PART OF ANY VEHICLE AND TO HAVE THEM RUST THRU TO THE DEGREE OF ALL THE COMPLAINTS THERE IS OBVIOUSLY AN ISSUE WITH THE COMPONENT THE MANUFACTURER INSTALLED ON THESE VEHICLES. BETWEEN OUR 2003 AND 2004 GMC AND CHEVY TRUCKS RESPECTIVELY, WE HAVE REPLAC

Mileage: 70,000

20110119ENGINE AND ENGINE COOLING

BRAKE LINES, TRANSMISSION LINES AND ENGINE COOLANT LINES ALL FAILING ON 2003 GMC 2500 HD SIERRA AS WELL AS ON 2004 CHEVY SILVERADO HD 3500. THESE PROBLEMS HAVE CAUSED NUMEROUS AMOUNTS OF TIME TO REPAIR AND REPLACE, AND TODAY THERE WAS A CATASTROPHIC BRAKE FAILURE ON THE 2003 HD GMC WHICH ALMOST RESULTED IN A DEADLY ACCIDENT. THESE LINES SHOULD NOT HAVE RUSTED THEY WAY THEY ARE ESPECIALLY ON TWO (2) DIFFERENT VEHICLES FROM THE SAME MANUFACTURER. THESE VEHICLES WERE PRODUCED WITH INADEQUATE PARTS FOR ALL LINES ON THE UNDERSIDE OF VEHICLE. THERE SHOULD NOT BE 1,000 PLUS COMPLAINTS FROM CONSUMERS REGARDING THE RUSTING OF THESE COMPONENTS, OF WHICH HAVE CAUSED SEVERAL MAJOR AND LIFE SAFETY ISSUES. THE BRAKE LINES ARE AN INTEGRAL PART OF ANY VEHICLE AND TO HAVE THEM RUST THRU TO THE DEGREE OF ALL THE COMPLAINTS THERE IS OBVIOUSLY AN ISSUE WITH THE COMPONENT THE MANUFACTURER INSTALLED ON THESE VEHICLES. BETWEEN OUR 2003 AND 2004 GMC AND CHEVY TRUCKS RESPECTIVELY, WE HAVE REPLAC

Mileage: 70,000

20110101FUEL SYSTEM, OTHER

I HAVE A 2003 GMC SIERRA 4WD TRUCK AND THE SPEEDOMETER CLUSTER IS BAD. I SEE THAT THOUSANDS OF OTHER PEOPLE HAVE THE SAME PROBLEM. THE SPEEDOMETER REGISTER ERRATICALLY AND SOMETIMES STAYS ON 0 MPH WHILE DRIVING DOWN THE HIGHWAY. I HERE THE FUEL GAUGE IS NEXT TO GO BAD. THESE TWO PROBLEMS TOGETHER ON A BUSY HIGHWAY CAN AND WILL CAUSE ACCIDENTS WHERE SOMEONE WILL GET HURT OR KILLED. GM HAS AGREED TO RECALL THESE VEHICLES WITH UNDER 70,000 MILES AND 5 YRS. OLD. THIS DOES NOTHING TO THIS SAFETY PROBLEM BUT LOWER THE ODDS A LITTLE BIT. WHAT ABOUT THE SAFETY OF THE BALANCE OF OWNERS OF THE REMAINING VEHICLES AND EVERY PERSON ON US HIGHWAYS? DOESN'T ANYONE CARE? PLEASE LOOK INTO THIS SAFETY PROBLEM FOR IT HAPPENS ALL OF THE SUDDEN. THIS FAILURE HAPPENS AND THEN IT WORKS FINE OFF AND ON OR IT JUST TOTALLY FAILS ALL AT ONCE. YOU HAVE NO IDEA HOW FAST YOU ARE DRIVING WHICH AFFECTS PUBLIC SAFETY AND RUNNING OUT OF FUEL ON A SNOW COVERED OR DRY FREEWAY OR RTE. AND NOT BEING ABLE TO STEER THE TRUCK

Mileage: 82,000

20110101ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

I HAVE A 2003 GMC SIERRA 4WD TRUCK AND THE SPEEDOMETER CLUSTER IS BAD. I SEE THAT THOUSANDS OF OTHER PEOPLE HAVE THE SAME PROBLEM. THE SPEEDOMETER REGISTER ERRATICALLY AND SOMETIMES STAYS ON 0 MPH WHILE DRIVING DOWN THE HIGHWAY. I HERE THE FUEL GAUGE IS NEXT TO GO BAD. THESE TWO PROBLEMS TOGETHER ON A BUSY HIGHWAY CAN AND WILL CAUSE ACCIDENTS WHERE SOMEONE WILL GET HURT OR KILLED. GM HAS AGREED TO RECALL THESE VEHICLES WITH UNDER 70,000 MILES AND 5 YRS. OLD. THIS DOES NOTHING TO THIS SAFETY PROBLEM BUT LOWER THE ODDS A LITTLE BIT. WHAT ABOUT THE SAFETY OF THE BALANCE OF OWNERS OF THE REMAINING VEHICLES AND EVERY PERSON ON US HIGHWAYS? DOESN'T ANYONE CARE? PLEASE LOOK INTO THIS SAFETY PROBLEM FOR IT HAPPENS ALL OF THE SUDDEN. THIS FAILURE HAPPENS AND THEN IT WORKS FINE OFF AND ON OR IT JUST TOTALLY FAILS ALL AT ONCE. YOU HAVE NO IDEA HOW FAST YOU ARE DRIVING WHICH AFFECTS PUBLIC SAFETY AND RUNNING OUT OF FUEL ON A SNOW COVERED OR DRY FREEWAY OR RTE. AND NOT BEING ABLE TO STEER THE TRUCK

Mileage: 82,000

20100108ELECTRICAL SYSTEM

SPEEDOMETER FAILURE IN 2003 GMC SIERRA, I FEEL THAT THIS TYPE OF FAILURE SHOULD BE CONSIDERED A SAFTEY DEFECT AND BE COVERED BY THE GM CORP. I HAVE BEEN FIGHTING WITH THE CORP FOR THE PAST THREE MONTHS TO COVER THIS IT WAS A DEFECTIVE STEPPER MOTOR IN ALL THE INSTRUMENT CLUSTERS AND THE PART NUMBER WAS XC5-168 THE NEW PART NUMBER IS X25-168 WHY WAS THIS NEVER CONSIDERED A SAFTEY RECALL, IS THE SPEEDOMETER NOT CONSIDERED PART OF THE SAFETY RECALLS ON OUR ROADWAYS? THE FACT THAT I CAN DRIVE DOWN THE HIGHWAY AT "ACCORDING TO MY SPEEDOMETER" AT 120 MPH AND CARS ARE PASSING ME, OR THE FACT THAT I MIGHT BE DOING ONLY 30MPH IN THE SAME SITUATION, IS THIS NOT CONSIDERED PART OF A SAFTEY RECALL? IT IS AND HAS BEEN KNOWN THAT THESE STEPPERS MOTORS IN THE INSTRUMENT CLUSTERS HAS BEEN BAD, AND NOT THE FAULT OF ANY DRIVER BUT THE FAULT OF THE GM CORP., DO WE HAVE TO WAIT UNTIL SOMEONE IS KILLED BY SOMETHING LIKE THIS THINKING THAT THER ONLY DOING 30MPH BUT IN FACT ARE RUNNING DOWN THE ROAD AT 80MPH

Mileage: 85,000

20071205POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

TRANSFER CASE HAS HOLES IN IT & FLUID LEAKED OUT. *TR

Mileage: 114,200

20071023POWER TRAIN:AUTOMATIC TRANSMISSION

I PURCHASED A 2003 GMC SONOMA FOR MY SON, IN JULY OF 2003 AND WE HAVE HAD NOTHING BUT PROBLEMS WITH IT. WE WERE TOLD YESTERDAY WE NEED A NEW TRANSMISSION AND WAS QUOTED A PRICE FROM $1,500.00-$2,500.00. WE ARE GOING TO PAY IT BECAUSE WE STILL ARE PAYING A PAYMENT ON IT AND CANNOT AFFORD TO GET ANOTHER VEHICLE. MY QUESTION IS ISN'T GENERAL MOTORS RESPONSIBLE FOR THE PRODUCTS THEY SELL. I DO NOT HAVE AN AMERICAN VEHICLE AND I WOULD LIKE TO BUY AMERICAN BUT THEY DO NOT STAND BEHIND THEIR PRODUCTS. *JB

Mileage: 85,000

20070908ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

SPEEDOMETER FAILS TO WORK. *TR

20070611STEERING:RACK AND PINION

TL*THE CONTACT OWNS A 2003 GMC TRUCK. THE CONTACT HEARD A CLICKING NOISE COMING FROM THE LEFT SIDE OF THE VEHICLE. THE SOUND IS SIMILAR TO THAT OF A SHOCK THAT HAS FAILED. THE FAILURE OCCURRED ONE YEAR AFTER THE VEHICLE WAS PURCHASED. THE RACK AND PINION HAS BEEN REPLACED FIVE TIMES. THE BEARINGS AND SHOCKS HAVE ALSO BEEN REPLACED. OVER ONE YEAR LATER, THE FAILURE HAS RECURRED. THE DEALER HAS MADE NINE UNSUCCESSFUL ATTEMPTS TO DIAGNOSE THE CAUSE OF FAILURE. GM STATED THAT THE FAILURE COULD BE RELATED TO THE STEERING GEARS AND ADVISED THE DEALER TO REPLACE THEM INSTEAD OF LOOPING THE GEARS. THE MANUFACTURER ALSO AUTHORIZED THE DEALER TO REPLACE THE SHOCK AND SPRING MOUNTS. THERE WAS AN ATTEMPT TO REPAIR THE BEARING GEAR INSIDE THE RACK AND PINION, BUT THE FAILURE CONTINUED. THE VIN AND FUEL SYSTEM WERE UNAVAILABLE. THE CONTACT HAS COPIES OF THE RELATED INVOICES. THE CURRENT MILEAGE IS 33,000 AND FAILURE MILEAGE WAS 12,000.

Mileage: 12,000

20061229EQUIPMENT

MY 2003 GMC SIERRA 2500HD JUST STARTED HAVING SPEEDOMETER PROBLEMS. ALL OF A SUDDEN I WAS DRIVING DOWN A COUNTRY ROAD TRAVELING ABOUT 45 MPH BUT MY SPEEDOMETER SAID I WAS GOING 90 MPH. THEN IT ALL OF A SUDDEN WENT TO 120 MPH AND EVENTUALLY IT PEGGED OUT COMPLETELY. WHEN I TURN MY ENGINE OFF ALL OF THE OTHER GAGES GO OFF BUT THE SPEEDOMETER STAYS AT 120 MPH +. SOMETIMES IT FLUCTUATES BETWEEN 70 AND 120 + BUT IT IS NEVER CORRECT. THIS SEEMS LIKE A HUGE SAFETY ISSUE AND IT APPEARS FROM READING ONLINE THAT THERE ARE TONS OF OTHER PEOPLE OUT THERE WITH THE SAME PROBLEM. THIS SEEMS LIKE SOMETHING THA GMC SHOULD FIX FOR FREE CONSIDERING THE SAFETY ISSUES. WE DONT HAVE THE MONEY TO SPEND ON SOMETHING THAT IS OBVIOUSLY THE MANUFACUTRERS FAULT.

20061128POWER TRAIN:AUTOMATIC TRANSMISSION

03 GMC SIERRA GOT USED IN AUG 06 WITH 31000 MILES NOW HAS 36000 MILES AND TRANSMISSION HAS CLUNK BETWEEN 2 &3 GEARS FROM ALL THE RESEARCH I HAVE DONE IT SEEMS THIS IS HAPPENING TO LOTS OF PEOPLE I WILL BRING THIS TO GM`S ATTENTION BECAUSE IT STILL UNDER GMC CERTIFIED WARRANTY BUT I DON`T THINK IT WILL GET ME ANYWHERE PLEASE HELP. *NM

Mileage: 33,000

20060913TIRES:TREAD/BELT

FIRESTONE STEELTEX RADIAL TIRES LT245-75-R16 ISN'T ANYBODY LISTENING TO ALL OF US REGARDING THESE TIRES? I HAVE JUST SPENT HRS. READING COMPLAINTS AND I KNOW WE HAVE NEVER BEEN CONTACTED EXCEPT THROUGH FIRESTONE (OF COURSE THEY WANT TO STOP WHAT EVER COMPLAINTS CONTINUE) A TRIP TO FIRESTONE DEALERSHIP ENDED WITH BLAME ON THE TRUCK. I HAVE A COMPLAINT ODI #10166588. I AM AMAZED THAT THESE TIRES HAVE NOT BEEN RECALLED. FIRESTONE DID TELL ME THEY WERE "DISCONTINUED" LAST YEAR. HOW MANY PEOPLE HAVE TO DIE BEFORE SOMEONE DOES SOMETHING??????? *NM

Mileage: 24,000

20051212POWER TRAIN:AUTOMATIC TRANSMISSION

LOUD CLUNK IN DRIVETRAIN WHEN TRANSMISSION UPSHIFTS 2-3 AND DOWNSHIFTS 3-2. VEHICLE IS 2003 GMC PICK-UP TRUCK 4X4. DEALER #1 REPLACED DRIVESHAFT. NO CHANGE. DEALER #2 DIAGNOSED THE CLUNK AS A MOMENTARY TORQUE REVERSAL OF THE OUTPUT SHAFT WHEN THE CLUTCH IS APPLIED AND THE 2-4 BAND RELEASED. SEE GM INFORMATION BULLETIN #01-07-30-042C (SEPT. 27, 2005) GM SAYS THIS IS NORMAL AND NO REPAIRS SHOULD BE ATTEMPTED. THIS CONSTANT CLUNKING IS NOT NORMAL AND IS AGGRAVATING TO THE DRIVER AND OWNER. A NEW VEHICLE SHOULD BE FREE OF MECHANICAL DEFECT AS THE WARRANTY STATES. THIS CONDITION MAY BE WORSE IN 4X4 VEHICLES DUE TO TOLERANCES IN THE TRANSFER CASE. GM WILL NOT RECTIFY THIS DEFECT WHILE UNDER ORIGINAL WARRANTY. IT IS THEIR DUTY TO SELL A DEFECT FREE VEHICLE. I HAVE DISCUSSED THIS PROBLEM WITH GM, BBB, A TRUCK DEALER AND A TRANSMISSION REPAIR SHOP. MY CONCLUSION IS THAT A REPROGRAMMING OF THE BANDS IN THE TRANSMISSION CASE WILL CORRECT THIS DEFECT. GM IS NOT WILLIN

Mileage: 8,977

20051019ENGINE AND ENGINE COOLING:ENGINE

I NOTICED SINCE I BOUGHT MY 2003 GMC ENVOY THAT THE MOTOR WOULD RACE IN THE AM UPON STARTING. I TOOK THIS AS NORMAL UNTIL THE RACING NEVER STOPPED ONE DAY. I TOOK IT TO MY LOCAL GM DEALER AND THEY INFORMED ME THE FAN CLUTCH HAD FAILED AND REPAIRED IT FOR OVER 700$. UPON RESEARCH LATER ON THIS PART I NOTICED PEOPLE SAYING THESE ARE FAILING AT A REGULAR BASIS. NOW, I'M NOT A MECHANIC, BUT I THINK HAD I NOT THE KNOWLEDGE I DO OF AUTOMOBILES, I WOULD HAVE CONTINUED TO DRIVE AND POSSIBLY COULD HAVE HAD A MAJOR ENGINE FAILURE OF SOME SORTS. THIS COULD HAVE RESULTED IN A SERIOUS INCIDENT ON THE ROADS. MY VEHICLE HAD ONLY 40,000 MILES ON IT. NOT MANY, CONSIDERING THE IMPORTANT OF OPERATION OF THIS PART. *NM

Mileage: 40,000

20050601PARKING BRAKE

DT: CONSUMER STATES: PARKING BRAKE DOES NOT WORK PROPERLY, IT WILL NOT WORK WHEN INCLINED ON A HILL, FACING BACKWARDS. TOOK VEHICLE TO THE VEHICLE TO THE DEALER, AND DEALER SAID THAT IT WAS NORMAL, THEY SAID THEY USED A DIFFERENT SYSTEM FROM THE DISC BRAKES.*AK

Mileage: 50

20050601SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC

DT: CONSUMER STATES: PARKING BRAKE DOES NOT WORK PROPERLY, IT WILL NOT WORK WHEN INCLINED ON A HILL, FACING BACKWARDS. TOOK VEHICLE TO THE VEHICLE TO THE DEALER, AND DEALER SAID THAT IT WAS NORMAL, THEY SAID THEY USED A DIFFERENT SYSTEM FROM THE DISC BRAKES.*AK

Mileage: 50

20040825TIRES:TREAD/BELT

WHILE DRIVING 55 MPH TREAD SEPARATED AND WRAPPED AROUND THE AXLE ON REAR DRIVER'S SIDE TIRE. CONSUMER HAD THE VEHICLE TOWED. DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE PROBLEM. FIRESTONE AT, P265/75R16. *AK

Mileage: 24,000

20031128EXTERIOR LIGHTING:HEADLIGHTS

HID HEADLIGHTS ESPECIALLY DRIVING LIGHTS ON GMC CARS ARE TOO BRIGHT! DRIVING TWO LANE ROADS AT NIGHT ARE SOMETHING I AVOID IF I CAN.*AK

20031013POWER TRAIN:AUTOMATIC TRANSMISSION

MISSING AND THEY SEEM NOT ABLE TO FIX IT SOME TIMES IT SHIFTS HARD OTHER TIMES IT BACKFIRES IT HAS BEEN IN THE SHOP TWICE ALL THEY CAN SAY IS THE COMPUTER SHOWS NOTHING AND THAT HOW THE ENGINE RUNS AND THAT IS UNACPECTABLE TO ME FOR A NEW TRUCK. *LA

Mileage: 300

Compare 2003GMCGMC TRUCK to Similar Vehicles

NHTSA Investigations

Frequently Asked Questions

How many complaints does the 2003 GMC GMC TRUCK have?
The 2003 GMC GMC TRUCK has 23 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2003 GMC GMC TRUCK?
The most-complained component for the 2003 GMC GMC TRUCK is POWER TRAIN:AUTOMATIC TRANSMISSION with 4 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING:ENGINE and TIRES:TREAD/BELT.
Is the 2003 GMC GMC TRUCK safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.