Auto Cancel Function

WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

If any of the following conditions is encountered, the cruise control is automatically cancelled.

The stop light switch wiring is faulty or short-circuited.
The vehicle speed signal is faulty.
In case of over current to the transistor, driving motor, or electromagnetic clutch.
When the vehicle has stopped due to voltage decrease.
When the vehicle speed falls below the minimum speed limit (approximately 25 mph, 40 km/h).