My 2000 Lexus RX300 had an unexplained sudden unintended acceleration where the vehicle almost killed me and my son. I was driving residential backroads by my house, accelerated slightly to get up a hill and that's when it took off. The brake pedal was unresponsive, the emergency break was unresponsive, I pulled the floor mat out for good measure, nothing worked, it kept accelerating at a high rate until I finally slammed it through gears to "park" to get it to a stop. I had it towed to the Lexus dealership, where the tow truck driver even told me when it started the car to get it up on the truck, after being turned off for over 12 hours, it was still red lining the engine, and even lurched forward but because the car was in park, it didn't crash into the back of the tow truck. Lexus investigated the car and did absolutely nothing. They wouldn't tell me why it happened. I demand an explanation and a replacement vehicle - one that doesn't have a history of having sua problems. I fear for my life everytime I have to drive this vehicle.

- Port Orchard, WA, USA

Bad transmission

- Manassas, VA, USA

Incident because of sudden unintended acceleration when my foot on the brake.

- Fremont, CA, USA

While driving, the car jerks and then cuts off. This has happened at least half a dozen times within the last 2 months. Engine light is constantly on, even after servicing the car at local Lexus dealer. When car is parked, I noticed exhaust fume smells heavily with gas.

- Chicago, IL, USA

After first having to replace my transmission at 75,000 miles. It seems I will have to pay to do it again at 186,000. The problem started out with the vehicle having trouble climbing a hill. I changed the transmission oil and two weeks later the vehicle move about three feet from a parking stall made a loud noise jerked to a stop and would not move. I was able to put it into drive and repark the car. It will not reverse and had to be towed to a mechanic.

- San Carlos, CA, USA

The contact owns a 2000 Lexus RX300. The contact stated that the only gear that would engage was drive. Although the contact could shift into any gear, the gears would not engage. The contact also mentioned that approximately four pistons misfired and the 02 sensor was defective. The vehicle was taken to an independent mechanic where the technician stated that the transmission needed to be rebuild and the O2 sensor needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The VIN was not repaired. The failure mileage was 127,000 and the current mileage was 128,700.

- Alameda , CA, USA