What you need
Follow these steps to reset the Lexus check engine light.
- Park the vehicle and set the emergency brakes.
- Locate the OBD-II port under the dashboard.
- Plugin your scanner.
- Turn on the ignition but don’t start the engine. On vehicles with Start/Stop button, press it twice without touching the brake pedal.
- Allow the scanner to turn on and connect to the car.
- Select OBD-II, then READ CODES. Make sure there are no current codes. If the problem has been fixed, only stored codes should be present.
- Go back and select CLEAR FAULT CODES. Press enter.
- Turn off the ignition, wait for ten seconds, and restart the engine. Check engine light should be on.
This procedure should be performed after a repair. If the Lexus check engine light doesn’t turn off, there is a problem that has not been fixed yet.
Clearing Lexus fault codes without fixing the problem is not recommended. Depending on the issue, the check engine light will come back on immediately or within a few days.
Check engine light can also be reset by disconnecting the battery for a few minutes.
A check engine can also reset if no fault codes are present. Typically it takes several driving cycles or about four to five days for the Lexus check engine light to reset.
There are hundreds of possible problems that can cause the check engine light on your LEXUS to stay on. The most common issues are spark plugs, oxygen sensors, and catalytic converter failure. Instead of guessing what is wrong, use an OBD-II scanner to read the fault codes.