One problem related to check engine light on has been reported for the 2003 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Prius based on all problems reported for the 2003 Prius.
2003 Toyota Prius with engine problems. Consumer states that the triangle and engine lights would illuminate upon starting the vehicle. Mechanic stated that there was oil in the air intake and on the sensors. The consumer stated twice while his wife was driving, the vehicle shut off, which left her driving with just the electric motor.
| Manifold/header/muffler/tail Pipe problems | |
| Car Stall problems | |
| Engine problems | |
| Engine Stall problems | |
| Engine Shut Off Without Warning problems | |
| Check Engine Light On problems |