2003 GMC C4500 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2003 GMC C4500, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Brakes228.6%
- Powertrain (other)228.6%
- Engine114.3%
- Exterior lighting114.3%
- Tires & wheels114.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
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
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 LIGHT AT THE BOTTOM OF A HILL OR RAIL ROAD TRACK BRIDGE? SOMEONE WOULD HAVE DIED. THERE NEEDS TO BE A BYPASS SWITCH INSTALLED NEAR THE STEERING WHEEL TO MANUALLY TURN THE PUMP ON. AND THE SWITCH ON THE PEDAL NEEDS TO BE A MECHANICAL ONE LIKE THE ONES THAT HAVE OPERATED TAILLIGHTS FOR THE LAST FIFTY YEARS. STICK WITH WHAT WORKS. *JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .