Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2003 Chevrolet Silverado 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
I was driving in normal conditions around 45 mph with the air conditioner on high. Smoke starts pouring out from underneath the dash on the passenger side and once I get stopped the blower motor resistor had caught fire. I was able to put the fire out myself no incident report was filed. It caused damage to my dash but I was able to extinguish it rather quickly to avoid further damage. I just bought this pick up for my 17-year-old son and if he had of been driving things could've been a lot worse especially if his reaction time is any slower than mine.
My heater started to shut off then I'd turn it off then turn it back on then it'd come back on again. That went on for a few days. Started my truck in the morning and let it warm up for a few moments when I hear truck is on fire. The fire was in the cab of the truck. It was investigated and they said fire started in the right side of the dash which is where the faulty part is from what I've learned about other Chevy trucks same make model and year as my truck
When I went to open the car door smoke came out. The truck hadn't been driven in two days and nothing was plug in to the charging outlet. The entire dash had melted. The heat was hot enough to crack the windshield and pop open the rear passenger window. The vhelihicle was parked the driveway of the primary residence.
Tl* the contact owns a 2003 Chevrolet Silverado 1500. The contact stated while driving approximately 55 MPH, the vehicle stalled without warning. After restarting, the vehicle resumed normal operation. The failure recurred numerous times at various speeds. The vehicle was taken to the dealer who stated that the throttle body was faulty. The contact was able to repair the vehicle himself. Recently, the vehicle exhibited hesitation on different occasions when the accelerator pedal was being applied. The vehicle was not repaired. In addition, the air conditioner circulated warm air whenever activated. The blower motor connector was not replaced; however, the motor resistor was replaced. The manufacturer was notified of the issue. The approximate failure mileage was 120,000.
Tl* the contact owns a 2003 Chevrolet Silverado 1500. The contact stated while driving 30 MPH, smoke and flames were emitted from under of the dashboard into the cab of the vehicle. The contact mentioned that he was able merge to the side of the road and disconnect the wiring harness, which stopped the flames. The fire department was not contacted and no injuries were reported. The vehicle was taken to a local mechanic who diagnosed that the blower motor, blower motor resistor, wiring harness and temperature control switch needed to be replaced. The manufacturer was made aware of the failure who did not offer any assistance since the vehicle was not included in any recalls. The vehicle was repaired. The failure mileage was 137,254 and the current mileage was 138,620.
Tl* the contact owns a 2003 Chevrolet Silverado 1500. While driving approximately 60 MPH, the vehicle stalled without warning. The contact had to maneuver the vehicle to the side of the road. The vehicle restarted after approximately 20 minutes. The vehicle was driven to an independent mechanic who stated that the ignition module needed replacing. The vehicle was repaired. The failure recurred numerous times after the repair. The manufacturer was not notified of the failure. The approximate failure mileage was 75,000.
Several times now this last 2 months my truck stops running. At first it would slow down then stop, the last time it completely shut down 3 times from work to home which is only 10 minutes away. The ignition seems to be the problem. I am bringing this to everyones attention just in case someone else has the same type of vehicle. If I were driving 65 or 70 miles per hour it could have killed someone or me or both. My passenger side airbag is also showing a fault. It shows that it needs serviced.
Tl* the contact owns a 2003 Chevrolet Silverado 1500. While driving at approximately 45 MPH, the steering wheel pulled to the left and right and the vehicle swerved after driving over a bump. The dealer diagnosed that the vehicle and the two control arms were replaced. The approximate failure mileage was 85,000. Updated 12/23/16 the consumer stated the wiring harness for heater number 4 setting blew out. There was an electrical odor. Updated 01/04/17.
The battery keeps being drained when engine stays turned off. I researched and found many complaints regarding this 2003 Silverado issue with many other owners. When I researched on a recall I found the recall number (02066) but it states that our truck VIN number is not included but then why have I bought 4 batteries just this year alone? Please help because it no longer cranks up at all. I have to jump the truck every time I have to turn it on.
Tl* the contact owns a 2003 Chevrolet Silverado 1500. The contact stated that the passenger side rearview mirror did not adjust and the buttons did not work. The contact called porter Chevrolet at [phone] (located at 414 e cleveland ave, newark, de 19711) and was informed that there was no recall. The manufacturer was made aware of the failure and stated that there was no recall. The failure mileage was approximately 173,000.
Electrical complaints in other Silverado 1500 years
Frequently asked questions
How common are electrical problems on the 2003 Chevrolet Silverado 1500?
NHTSA has 195 complaints about the electrical system of the 2003 Chevrolet Silverado 1500, 24% of the model year's 805 complaints. The component named most often is instrument cluster/panel (105 mentions).
Is there a recall for 2003 Chevrolet Silverado 1500 electrical problems?
No. NHTSA lists no electrical system recall for the 2003 Chevrolet Silverado 1500. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2003 Chevrolet Silverado 1500 electrical problems start?
Half of the complaints with a recorded mileage happened before about 79,000 miles, and 5% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 5 fires and 1 injury to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
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.