Total Complaints
7 filings
GMC C4500 · model year
7 NHTSA complaints, and 1 active recall for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003GMCC4500 carries 7 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 C4500 is exterior lighting:headlights with 1 filings, followed by service brakes, hydraulic:power assist:hydraulic (1) and power train:driveline:differential unit (1). 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. This model year has 1 active recall campaign, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 2 investigation files overlapping the 2003 C4500. 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.
Total Complaints
7 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| EXTERIOR LIGHTING:HEADLIGHTS | 1 |
| SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC | 1 |
| POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT | 1 |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER | 1 |
| ENGINE AND ENGINE COOLING | 1 |
| POWER TRAIN | 1 |
| TIRES | 1 |
SUSPENSION:REAR
CERTAIN MEDIUM DUTY TRUCKS EQUIPPED WITH 11,000 LB. REAR AXLE HAVE A CONDITION WHERE THE REAR AXLE ANCHOR PLATE MAY FRACTURE. AS THE ANCHOR PLATE FRACTURES, THERE IS AN AUDIBLE "BANG." IF THIS INDICATION OF A CONDITION REQUIRING THE DRIVER'S ATTENTION WENT UNNOTICED OR WAS IGNORED, AND UNDER CERTA
PURCHASES TIRES IN JUNE 2009 -- UPON INSPECTION THIS WEEKEND 4/11/2010 WE NOTICED LARGE CRACKS IN THE TIRES ALMOST LIKE IT WAS SEPARATING. WE BROUGHT THEM TO THE DEALER AND THEY CHARGED US $100 TO REPLACE THEM AFTER ADMITTING THAT THE TIRES HAD FAILED AND WERE DEFECTIVE. *TR
Mileage: 240,000
THROW BEARING WEARS OUT EVERY 40,000 KM. BELL HOUSING GONE AT 180,000 KM'S, REAR END WORE OUT AT 182,000 KMS AND FORTH GEAR GONE IN TRANSMISSION AT 183,000, DASH CLUSTER GONE AT 188,000. MANUFACTURE OR DEALER WOULD NOT COVER ANYTHING. *NM
Mileage: 180,000
VEHICLE EXPERIENCED SUDDEN STALLING AT VARIOUS SPEEDS WHEN ON THE ROAD. TAKEN TO THE DEALER 10 TIMES FOR CHECKUP, BUT THE CAUSE WAS STILL UNDETERMINED.*AK
VEHICLE WAS EXPERIENCING A PROBLEM WITH GREASE FROM THE REAR END LEAKING ONTO THE LEFT REAR WHEEL BRAKING SYSTEM. THIS CAUSED LOSS OF BRAKING IN THAT WHEEL. DEALER REPLACED THE GREASE SEAL WITH AN UPGRADED SEAL SIX TIMES, PROBLEM RECURRED. *AK REAL GREASE SEAL WAS REPLACED. THE DRIVER SIDE BRAKE CALIPER BOLT FELL OUT CAUSING THE CALIPER TO RUB THE INSIDE OF THE INNER DUAL WHEEL CAUSING DAMAGE TO THE CALIPER AND WHEEL. *TC
Mileage: 3,300
VEHICLE WAS EXPERIENCING A PROBLEM WITH GREASE FROM THE REAR END LEAKING ONTO THE LEFT REAR WHEEL BRAKING SYSTEM. THIS CAUSED LOSS OF BRAKING IN THAT WHEEL. DEALER REPLACED THE GREASE SEAL WITH AN UPGRADED SEAL SIX TIMES, PROBLEM RECURRED. *AK REAL GREASE SEAL WAS REPLACED. THE DRIVER SIDE BRAKE CALIPER BOLT FELL OUT CAUSING THE CALIPER TO RUB THE INSIDE OF THE INNER DUAL WHEEL CAUSING DAMAGE TO THE CALIPER AND WHEEL. *TC
Mileage: 3,300
MY ENGINE STALLED DUE TO CONTAMINATED FUEL. WITH THE KEY STILL IN THE ON POSITION, I ATTEMPTED TO STOP. I PRESSED THE SERVICE BRAKE PEDAL. THE BACKUP BRAKE SYSTEM DID NOT OPERATE. I REPEATED PRESSING THE BRAKE PEDAL TWO MORE TIMES. I UNDERSTOOD. I WAS CLOSING THE DISTANCE BETWEEN MY VEHICLE AND THE ONE IN FRONT OF ME APPROACHING THE TRAFFIC SIGNAL, RED. THE BRAKE PEDAL SWITCH FAILED TO INITIATE THE RELAYS AND PUMP. CONSEQUENTLY, THE VEHICLE HAD PRACTICALLY NO BRAKES OTHER THAN THE DRUM BRAKE BY HAND BRAKE HANDLE. I APPLIED THE HAND BRAKE. GOOD THING I WAS ONLY TRAVELING AT LESS THAN 30 MILES PER HOUR, WITHOUT CARGO, AND HAD MORE THAN 400 FEET TO STOP. I ALMOST HIT THE VEHICLE IN FRONT AT THE RED LIGHT. THE HAND BRAKE WORKED. AT HIGHER SPEED, THE TRUCK WOULD HAVE KILLED PEOPLE. THERE WOULD HAVE BEEN NO ENGINE BRAKE EFFECT BECAUSE THE ENGINE HAD STOPPED. GOING DOWNHILL AFTER FUELING AND THEN PULLING MY TRAILER AS WELL IF IT HAD BEEN LOADED, WOULD THE RESULTS HAD BEEN THE SAME AT THE RED
Mileage: 79,000
WHEN THE VEHICLE REACHED A SPEED OF 50 MPH, THE HEAD LIGHTS DIMMED. *JB WHEN THE LIGHTS ARE ADJUSTED PROPERLY, THEY DO NOT ALLOW THE PROPER LIGHT ON THE ROAD AT SPEEDS GREATER THAN 50 MPH. DEALER DID NOT SEE THE PROBLEM. SCC
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.
Read our methodology — how this data is sourced, computed, and verified.