Most common 2003 Chevrolet C4500 problems
Share of the 5 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Chevrolet C4500 complaints by model year
Best C4500 years: 2007. Compare all years →
2003 Chevrolet C4500 recalls (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 certain rebound, braking, or…
Remedy: Dealers will install a new rear axle anchor plate and spacer. Owner notification began August 16, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free…
What 2003 Chevrolet C4500 owners say
Engine & cooling
Consumer complained about an engine problem. It did not maintain the throttle. Engine went into neutral without a cause. Also, a suspension problem due to bolts placed in upside down position which caused vehicle to flip. Wires and plastic bolt holders melted.
Dt*: the contact stated when driving at any speed, the vehicle stalled intermittently. When the ignition was turned off, the vehicle would restart without a problem. The dealership replaced the fuel pump and exchange pump, although this helped the stalling, it did not correct the problem. The stalling progressively got worse. The dealership is unable to determine a problem.
Frequently asked questions
Is the 2003 Chevrolet C4500 a good car?
Based on 5 owner complaints filed with NHTSA, the 2003 C4500 rates average: 1.4× as many complaints as a typical year of the C4500 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2003 Chevrolet C4500?
The engine & cooling — 3 complaints, 60% of all complaints for this model year, most often about engine. Next are the electrical system (2) and suspension (1).
How many recalls does the 2003 Chevrolet C4500 have?
There is 1 recall for the 2003 Chevrolet C4500, the most recent from July 26, 2002 (rear). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Chevrolet C4500?
The best years by complaints, compared at the same age, are 2007. See the full Chevrolet C4500 years comparison.
At what mileage do 2003 Chevrolet C4500 problems happen?
The median mileage reported in complaints is about 57,000 miles; 33% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.