2003 GMC Sierra 2500 electrical problems

Filed Apr 1, 2019 · Electrical · 180,000 miles · NJ

Blower motor resistor does not operate. Upon inspection, harness and final stage are damaged due to excessive heat. I need to replace both components because I fear it will cause a fire. Many posts on the same thing. Why is there nothing done about this? My bmw had same issue but it was a recall on their cars. Why is it not a recall on gm? Is it because they are an american car company?

Filed Oct 5, 2017 · Driver assistance, Electrical · MI

Gmc 2500 diesel hd sle sierra rearwheel drive instrument panay is inoperative. Have to use iphone for speed and guess at gas effecting cruise control interior lights fan speed and cd player

Filed Apr 10, 2015 · Electrical, Fuel system · 142,000 miles · CT

(electrical) as an ongoing issue, the dashboard gauges/indicators (I.e. Tach, speedometer, etc..) will sometimes not register until several minutes after the vehicle has been running (this could be for up to miles) it has not affected vehicle performance to date. (fuel/propulsion system) I have begun having issues where it goes into "reduced engine power". Further diagnostic attempts have LED me to believe that it is due to a faulty throttle position sensor (part of the throttle body), tac module, or app assembly (accelerator pedal). Most likely cause may be due to the throttle position sensor, as this issue has happened when the vehicle is on "cruise control". However, due to the inferior design of the throttle body unit itself, the manufacture has made it difficult or if designed to be impossible to replace just the tps, by riveting the tps to the throttle body, and may have to replace the whole throttle body. I am having the vehicle serviced for a complete diagnostic and repair, and will elaborate further upon successful repair if desired.

Filed May 20, 2014 · Electrical · 226,300 miles · ID

When placed in park then turned off the key wouldn't come out of the ignition, when placed in drive while running the key would come out freely.

Filed Feb 16, 2012 · Electrical · 111,000 miles · WA

Tl* the contact owns a 2003 gmc sierra 2500 hd. The contact stated that the battery light would illuminate on the instrument panel abnormally and the speedometer had failed. The dealer and the manufacturer were notified of the failure, but no assistance was provided to the contact. The vehicle was not repaired. The failure mileage was 111,000 and the current mileage was 112,000.

Filed Jan 27, 2011 · Electrical · 101,000 miles · NJ

Speedometer began to register inaccurately then stopped working completely.

Filed Dec 12, 2010 · Electrical · 70,000 miles · NV

The instrument cluster has been failing one gauge at the time since 4 years ago, finally it quit all together, I called gm and my local dealership and I was told there was nothing they can do but to charge me for check up and possibly get me a new cluster for 400.00 what a joke. I know gm has been aware of this problem but nothing gets done. What is it going to take to get gm to get this problems serviced with no cost, after all it's their reputation.... I won't buy another gm vehicle.

Filed Nov 15, 2010 · Electrical · 125,000 miles · 00

2003 gmc sierra 2500 hd ext. Cab, 8-ft. Box. In cooler weather, fall, winter, spring, the gauges malfunction. That is, the speedo and tach read wildly high or don't activate at all, and the other gauges all are non functional. This is intermittent and is apparent when starting on cold mornings. So far, symptoms have disappeared in warmer temps. It has occurred every year. There is an advisory, but gmc won't act on my word, must see it.

Filed Oct 21, 2010 · Electrical · 100,000 miles · WI

Tl* the contact owns a 2003 gmc sierra 2500 hd. The contact was driving approximately 55 MPH when the speedometer began to inaccurately read a speed of 90 MPH. The contact shut off the vehicle and when restarting, the speedometer was still reading inaccurately. The vehicle was not taken to be examined for the cause of failure and was not repaired. The failure and current mileage was 100,000.

Filed Sep 7, 2010 · Electrical · 114,000 miles · MA

Tl*the contact owns a 2003 gmc sierra 2500. The contact stated that the instrument cluster failed several times. The failure progressed and the gauge would not function. The vehicle was previously repaired at a dealership but the failure occurred again. The contact called the dealership again but the dealer stated that there was nothing they could do. The contact called the manufacturer who offered no assistance. The vehicle had not been repaired at the time of the complaint. The current mileage was approximately 118,000. The failure mileage was approximately 114,000.