Adaptive Equipment Problems of GMC Sierra

Vehicle was purchased new from a dealership. The vehicle is modified and sold commercially under the rmt (rocky mountain truck works) package. The package includes modified suspension and lighting. When accelerating, the transmission fails to shift into a passing gear causing the rpm(s) to exceed 6000 at which point the rev limiter shuts down power to the vehicle until the rpm(s) are back in a safe operating limit. The first time this happened, I was attempting to pass a vehicle on a secondary two lane highway. When I was in the passing lane, I accelerated to overtake the vehicle but the rpm limiter shut down power midway through the passing. With oncoming traffic, and loss of power, it made for a very serious situation. I have contacted the dealership and they have worked on the vehicle multiple times to try and correct without success. They have confirmed that this happening with all the rmt modified vehicles that they have test driven. These vehicles are commercially marketed and it is only a matter of time before someone is not as ¿¿lucky¿� as I was.

See all problems of the 2014 GMC Sierra 🔎.

Brake fluid leaking all over bottom of truck spraying out I took to a mechanic and had 1000 dollar brake line job done got truck back and abs brakes worked like manual brakes had a sensor and 2 ball joints replaced im being ripped of from a GMC loyal customer I was I guess back to Ford or Toyota for my next new trucks I had warranty issues you cheap [xxx] wouldnt pay for a waterpump that was leaking only a 7 dollar gasket also had a transmission on my work van repair and then replaced after a month of run around. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 1999 GMC Sierra 🔎.

Vehicle hesitates and stalls upon acceleration. According to gm document id number 3685734 this is a normal condition and they have programmed the vehicle to do this. If going into traffic and trying to accelerate, the built in delay can cause close calls at best and worst case an accident. This coupled with the transmission issues mentioned in document id number 3575856 creates the perfect storm for injury and / or death. Gm refuses to address the issue other than to say they feel it is not a problem. This covers virtually all gm vehicles since 2007 with the 6 speed transmission.

The contact owns a 2011 GMC Sierra. The contact stated that while replacing a flat tire, he noticed that the jack did not extend high enough to lift the vehicle and replace the tire. The manufacturer was made aware of the failure. The jack was not replaced. The approximate failure mileage was 24,000.

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I have a 2004 GMC Sierra that has an electrical issue with the abs or brake system. The brake light, abs light and service brake system light goes off at random times. Might have something to do with the air conditioning because the a/c draws power from the battery and I can see that a certain level the indicators go off. Most of the time the lights chime and blink when I apply the brake but it also has happened when just turned the truck on. I've replaced the rotors and pads to still have the problem. I'm not sure if it's a ground or sensor that is failing. I've found TSB for regrounding, failing sensors, or ecbm. Still haven't found the correct diagnosis. I just hope the abs functions when I need it.

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Heater motor continues to run after the switch is turned off, the blower only works randomly. I under stand there is a recall for this issue but my VIN is not included. This seems to be a problem in a number of different gm vichicles. There is a chance of electrical fire with the being able to run with the switch off also the report would not pull a list of parts nor would it permit me to type in the parts: heater motor blower resistor, and wiring connectors.

See all problems of the 2007 GMC Sierra 🔎.

Both the driver side and rear brake lines, because of rust, burst at the same time. It was lucky the car was not on the road. I have replaced all the lines and had to replace the front calipers because the bleeding nippled were completly gone due to rust. The rear calipers were in good shape. Over the course of ownership, I have had to forcefully remove the tires from the hub because they were rusted to the hub. Again I was lucky that I did this work at home and would have been in serious trouble had I been forced to change tires due to a flat. It also appears the truck frame is showing advance rusting for its age and milelage.

See all problems of the 2002 GMC Sierra 🔎.