See also:

If the vehicle 12-volt battery is discharged
The following procedures may be used to start the hybrid system if the vehicle’s 12-volt battery is discharged. You can also call your Lexus dealer or a qualified repair shop. If you have a set o ...

Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer. Never leave the keys insid ...

If a warning light turns on or a warning buzzer sounds...
Calmly perform the following actions if any of the warning lights turn on or flash. If a light turns on or flashes, but then turns off, this does not necessarily indicate a malfunction in the sy ...