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Problems with 2003 Chevrolet Silverado 2500HD ELECTRICAL SYSTEM

On average, the 2003 Chevrolet Silverado 2500HD starts to “feel” problems with the ELECTRICAL SYSTEM and its various aspects after 98 657 miles.

Components Affected by ELECTRICAL SYSTEM Issues

We have classified the 29 complaints from 2003 Chevrolet Silverado 2500HD about ELECTRICAL SYSTEM into the following categories.

INSTRUMENT CLUSTER/PANEL 24 IGNITION 1 12V/24V/48V BATTERY 1

Recently reported ELECTRICAL SYSTEM problems on 2003 Chevrolet Silverado 2500HD

Dt: the consumer states that 2003 chevrolet c 2500 was having a message on the instrument panel showing reduced engine power. then, the engine immediately dropped power. the speed will dramatically slow to around 15 mph. this happened 5 times currently. there have been several near misses as a result of the power reduction. the vehicle has been in the dealership 5 times for the engine power failure. the dealer replaced three times the wiring harness to the throttle position sensor, throttle body, power train control module, throttle actuator, control module, also, the ignition switch was replaced and the engine was still losing power. the manufacturer has been contacted, and the customer service department was very unwilling to help or provide the address to the regional office. the customer service representative was very rude and refused to transfer the call to his supervisor upon request of the consumer. *ak

2003 silverado instrument cluster is failing. first, 2 yrs ago, it was the tach failing now it is the speedometer and the others are not functioning correctly at times. i did receive a letter from gm 2 weeks ago went to the dealer, they would not do anything because i have 87000 mi on it. call gm and they said it is up to the dealer. that doesn't sound right! is there anything that can be done? did gm put it to us again? *tr

Consumer complaint concerning transmission failures on 2003 silverado. *ts the transmission fluid was burnt, the reverse gear was inoperable and the transmission shifter was loose. the power steering fluid was low. fluid was leaking from the gear box. the front seal on the power steering pump was worn and leaking, as well as the lower hose. the water pump gasket and lower radiator hose was leaking. the battery was replaced because it would not hold a charge. the a/c would only blow out air from the defrost vents. the a/c heater mode door actuator was worn. the check engine light illuminated. the fuel filter was replaced. the panel on the drivers seat was warped. the tires were replaced, however months later one of the tires developed a slow leak, due to a pin hole located in the sidewall. the rear pads and rotors were replaced. the front and rear shocks were replaced. the tail gate support cables were replaced. the rear tire blew out while driving. the second row seat belt was inoperative. *jb

The speedometer in my 2003 chevrolet silverado 2500hd suddenly stopped working. the normal speed shown now is over 120 mph while moving or stopped. on rare occasions the speedometer will register a lesser speed for a short period of time but the normal speed shown is 120 mph or higher. the odometer works without a problem as well as all other electrical functions of the speedometer other than actual speed. per my most recent contact with a general motors dealer service department (mr. goodwrench) that dealer is seeing an average of one similar vehicle per day with the same problem. not knowing the actual traveling speed of the vehicle will certainly lead to traffic accidents and injuries if this has not already happened. i've now had two estimates to repair the speedometer. the first estimate was in 12/2004 and the estimate was $1,000.00+ and approximately 6 weeks in the shop. the 2nd estimate was in 12/2006 by an out of state dealer (who says he gets one new repair daily) and the cost was approximately $500 but it would take several days to determine what component part was needed and since i was traveling interstate on a year end vacation i couldn't wait for the repair. this dealer suggested someone should contact your office because they felt a non-operational speedometer was a major safety problem with the potential for severe injury or death. *jb

Intermittently dash board lights and gauges will go blank. when the dash board lights go blank consumer cannot determine how fast the vehicle is going. the dealer examined the vehicle five times.*ak

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