Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2000 GMC Sierra owners, lightly cleaned up (personal details are redacted by NHTSA).
The consumer was at a stand still when putting the vehicle in reverse, the consumer pressed the accelerator pedal and there was some resistance in the accelerator pedal and then the pedal dropped straight to the floor. When the vehicle was moving backwards, the owner hit the brake and the vehicle began to accelerate on it s own at a high rate of speed. The consumer crossed two lanes of traffic and hit a guard rail. Provide further details.
We purchased a used 2000 GMC and within a month experienced experienced throttle sticking closed so severe you could not move the vehicle. Then if you applied a lot of pressure it would lurch forward. We took it in after a couple of months to a local GMC dealer and they said it was the throttle body and it was warped and would need to be replaced. They had no explanation why it would have become warped. We paid 643.00. When we picked up the vehicle my wife went online to research if there were any problems and came across a reference to a TSB so we checked out NHTSA and under defects was listed the investigation that is still open about the throttle body( ea02-015) . We were very upset and took in copies of the TSB and spoke to the service manager. On our receipt was listed another TSB #00-06-04-007b as to why they replaced it. But with a charge. …
Throttle becomes sticky when closed. As a result extra force is required on the accelerator when initialy depressed. This is an extremly dangerous situation especialy in parking lots or other tight, highly populated areas since extra force is required on the accelerator to "break it free" once it does "break free" the vehicle can lunge/lurch foreward uncontroled. This situation makes smooth throttle control unobtainable. The problem seems to get worse with higher ambient temperatures as I assume the throttle plate expands when hot and binds in the throttle body. Cleaning the throttle body provides relief for a very short period. I have read about this problem on several internet message boards and believe that GM offers an updated throttle body to correct this problem. …
The accelerator pedal on the pickup has and still does stick when trying to accelerate slightly/slowly forward or backward as in parallel parking. The problem is worse in hot weather. The dealer, during warranty period, told me they found no defect and knew of no defect. I left it go. My friend who owns a Saturn sedan told me he has the same problem with the accelerator sticking during small maneuvers. I have just read that there are twelve complaints similar to my issue that have been reported to your agency. I am reporting the same at present though the problem has been ongoing for ten years. It makes close parking difficult and I try to avoid the situation because of such. I have almost crashed many times because of the amount of overpressure to the accelerator to make the truck move.
I just bought a 2000 GMC Sierra 1500 pickup with the 5.3 liter engine. The throttle sticks when you start off in it from a stopped position. The accelerator has a tight spot in it when you first press on it. This can be very dangerous if it sticks too much when it breaks loose the truck will go forward real quick and you could hit somebody or something. Someone told me that the butterfly had carbon built up on it and it needed cleaning. I called a GM dealer and talked to the service manager and he said it was reported before and he would clean the throttle valve for $90.00. I think this should be covered by the manufacturer and besides it will happen again when carbon builds up on it again. A permanent fix needs to be put in place as a recall item I think.
2000 GMC Sierra has problems with brake rotors, engine failing to restart, and the passenger cab was not level. Shims were installed to make the cab level. The rear rotors were crystallized and flaking off which caused pulsation while braking. The ABS sensor failed which resulted in intermittent brake loss. The gas pedal became stuck at times.
The gas pedal sticks regularly. It sticks when the vehicle is at a stand still. It is very hard to press the pedal at times. When I do push the pedal it takes a lot of pressure to get it pushed in and the vehicle then darts forward very quickly. When in a tight space this can be quite dangerous as I am unable to control it. 8nlm
Consumer states while driving the vehicle and without warning the vehicle gas pedal gets stuck. Ts gas pedal stuck and had to be tapped to get to move. This caused excessive engine rpms possibly causing an accident. Consumer had to keep foot on brake to prevent vehicle from lurging forward.
While applying the accelerator pedal vehicle failed to move. After applying the accelerator pedal numerous times the vehicle jumped and surged forward. Consumer was able to maintain control of the vehicle, and drove it to the dealer for inspection.
On 12/13/99 when slowing down to make a left turn, the tourque converter locked up and stalled the truck in middle of traffic while crossing the left lane. With difficulty, truned the wheel back to the right and pull off the road and shifted into park and restarted the truck. Luckly there was very little on coming traffic. On 2/11/00 while coming into a rolling right hand turn and going about 15 MPH, I started to brake and the tourque converted again locked up and the engine stalled. Again with difficulty I was able to steer into the corner and make the corner. As the truck was free rolling it just started itself and it contiuned on, almost crached into two cars waiting at the stop sign. If my wife was driving there would have been a collision. In October when waiting for a traffic light to change, I accellerated and truck didn't move. …
NHTSA investigations
Throttle sticking
There is no summary currently available
Throttle sticking closed
This investigation involves the general motors corporation (GM)throttle body (tb) utilized in model year (my) 1999-2002 silverado, sierra, tahoe, suburban, avalanche and yukon (subject vehicle(s)) with 4.8l, 5.3l, and 6.0l engines. The tb valve May intermittently stick in a closed position.in such a situation, an operator May apply additional accelerator pedal force to increase engine speed.the application of…
Acceleration complaints in other Sierra years
Frequently asked questions
How common are acceleration problems on the 2000 GMC Sierra?
NHTSA has 27 complaints about the speed control & acceleration of the 2000 GMC Sierra, 6% of the model year's 443 complaints. The component named most often is accelerator pedal (12 mentions).
Is there a recall for 2000 GMC Sierra acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2000 GMC Sierra, though it has 8 recalls for other components. 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 2000 GMC Sierra acceleration problems start?
Half of the complaints with a recorded mileage happened before about 46,000 miles, and 9% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 0 injuries to speed control & acceleration 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.