Toyota 4Runner owners have reported 38 problems related to car accelerates on its own (under the vehicle speed control category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota 4Runner based on all problems reported for the 4Runner.
Regarding my 2003 Toyota 4-runner, limited, 4-wheel drive with a v-8 engine and 5 speed automatic transmission. Since I've owned the vehicle (September 28, 2003) the engine has periodically accelerated suddenly by itself, while at a stop, such as at a stop light, with the ac on and the transmission in drive. Sometimes this results in an abrupt acceleration similar to being hit by another car in the rear. If I didn't have my foot firmly on the brake in these instances, I would have shot into the intersection. This problem is not only a serious safety problem, but has to be doing damage to the transmission. I took it in for repair and as predictable the dealer said they found no problem. All they did was confirm its idle, they did not drive it in traffic. This is a serious problem and could result in a serious incident. I've noted other complaints have been made to NHTSA on the same problem. I believe this problem should be investigated before serious injuries are incurred by someone.
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While traveling on the highway without prior warning. The vehicle will suddenly accelerated. Please fill in additional information dealer is aware of the problem.
Consumer states attempted to back out of garage. When consumer shifted vehicle into reverse, it suddenly accelerated causing a collision. Consumer advised attempted to depress brakes, but they did not function.
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