The vehicle's throttle apparently becomes stuck open, which causes the vehicle to accelerate to a high rate of speed and become difficult to stop. It has occurred while the car is in park or when accelerating from a stop on city streets or when accelerating on an interstate ramp.

- Knoxville, IA, USA

The contact owns a 2000 Buick Lesabre. The contact stated that while driving approximately 25 mph, the engine stalled as the electronic throttle control warning lamp illuminated. The vehicle restarted on the first attempt and resumed normally. The failure recurred on seven separate occasions. The vehicle was taken to a dealer where the failure was unable to be diagnosed. The manufacture was made aware of the failure. The failure and current mileage was 116,633.

- Girard, PA, USA

Car won't accelerate. Sitting at a stop light on the highway and when the light turned green and the gas pedal was pressed, nothing happened for a few seconds. Then when it did respond we had to floor it to get it to 30 mph.

- Dayton, OH, USA

The contact owns a 2000 Buick Lesabre. While the contact was driving approximately 55 mph, the vehicle unexpectedly increased acceleration up to 70 mph. The brake pedal was applied numerous times with extensive force and the vehicle continued to accelerate. The contact down shifted to a lower gear, followed by no response. The speed rate reduced between 10-15 mph when the gears were shifted into the reverse position which allowed the vehicle to stop properly while the brakes were applied. The vehicle was towed to an independent mechanic for storage due to the safety issue pertaining to the acceleration malfunction. The vehicle was not diagnosed or repaired. The failure mileage was approximately 156,000.

- Lake Orion , MI, USA

I placed the shift lever in reverse and depressed the accelerator pedal. The car accelerated rapidly. I depressed the brake pedal very hard and held it down. The car alternately stopped, accelerated, stopped, accelerated etc 3 or 4 times before coming to a full stop: Total distance traveled - approximately 30 feet. I repeated the above procedure in forward gear and got the same result. Prior to this incident the throttle system did not appear sticky or off-normal. Post incident, the throttle appeared slightly sticky. Approximately 18 months ago I reported a sticky throttle to my Buick dealer, they serviced the throttle system and the problem was solved. As stated above, the throttle did not give indication of a problem this time.

- Knoxville, TN, USA

2000 Buick Lesabre experienced sudden acceleration on three occasions. The problem was intermittent. On one occasion, the consumer was slowing to stop behind another vehicle that had stopped at a stop light when the consumer experienced sudden acceleration and caused minor damage. The last time this happened, the vehicle had come to a complete stop at a signal when the sudden acceleration occurred. The dealer was unable to find the cause of the problem.

- Cape Girardeau, MO, USA

While driving dash lights illuminated intermittently. The air bag light illuminated more than any other light. Also, the driver's side back of seat laid automatically on its own. This incident happened while the consumer was driving. Upon having a full tank of gas, the meter would read empty. The vehicle was taken to the dealer. The consumer was told that there was an electrical problem. There was a noise in the dash, the fuel gauge would jump to empty, the speedometer would go to zero, the headlight would go dim when the weather was rainy, there was a rumble in the left front end, a shimmy when the brakes were applied and when raining, the dash light would go from bright to dim the air bag light was intermittent, the radio would cut out, the driver's seat was inoperative, the transmission would slip into overdrive on slight acceleration, the automatic doors were inoperative, the cruise control was inoperative, there were intermittent loss of heat would start blowing cold air, the oil pressure light would come on while the fuel gauge mileage would not stay on, the electrical remote was inoperative, and there was a leak in the engine.

- Indian Orchard, MA, USA

Vehicle brought to dealer for excessive fast idle at start up with cold or warm engine. Vehicle 35 mph in one-half mile without using acclerator. Tachometer indicates 1800 to 2200 RPM. Must apply brakes repeatedly to reduce speed to safe speed. RPM returns to normal within seven-tenths of a mile.

- St. Cloud, FL, USA

While placing vehicle in reverse car will accelerate 30-35 mph without applying accelerator pedal.

- Cavalio, CA, USA

On May 22 police report number [xxx] wife lost control and reported vehicle would not stop and the brakes needed to be checked..repairs were made and today on July 15 vehicle was driven home and engine was racing and would not slow down. Vehicle was turning 4100 RPM and would not idle.the car normally runs at 65 at 2000 rpms so 4100 RPM would be in excess of 100 mph. Cruise was taken off however vehicle continued to speed out of control.all attempts to get vehicle to slow down failed. The vehicle is in driveway I have not reported this to the dealer yet.dealer unaware of accident.accident occurred on wet roads and the accelerator may have stuck then. I know something is wrong...help me it may save a life. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Charlotte, NC, USA

Cruise control cable failed causing the vehicle to run at high speeds without pressing the accelerator making the vehicle dangerous to drive during wet weather. Nlm

- Kingsport, TN, USA

Vehicle freewheeld up to 40 mph, and coming off the ramp, the vehicle accelerated at high speed. Consumer had to put his foot on the brakes to get the vehicle to come to a stop.

- Fairview, PA, USA