One problem related to cruise control has been reported for the 2015 Toyota Prius. The most recently reported issues are listed below.
Anytime I change elevations the engine seems to rev when it is idling on cruise control. On the downhill, the car will accellerate to ignore the speed on cruisecontrol to dangerous high velocity. I reported this to Toyota of north hollywood three times. . . It was never addressed.
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems | |
| Cruise Control problems | |
| Fail To Accelerate problems |