One problem related to car throttle stuck has been reported for the 2005 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Prius based on all problems reported for the 2005 Prius.
2005 Prius with about 50k miles. Driving in nv. Temp about 33f. Accelerated from about 60 mph to 70 mph to pass. Throttle stuck wide open. Accelerated up to about 85 mph. After about 15 secs, the engine throttled back to normal. I checked immediately for a bunched up floor mat or carpet or anything under the accelerator pedal. There was nothing at all. This has only occurred once.