Residual Engine Heat System (REST)

The Residual Engine Heat System (REST) system enables the vehicle to be heated with the ignition "OFF". A switch (4) in the heater-A/C controls activates this system.

The REST system is activated by a switch in the heater-A/C controls when the ignition is turned "OFF". This system circulates residual heat from the engine to the heater core. The coolant is recirculated by an auxiliary coolant pump mounted below the right front headlamp. The temperature is automatically adjusted according to the temperature setting in the heater-A/C controls. The REST system will automatically be shut off when:
- The ignition key is turned "ON".
- After approximately 30 minutes of operation.
- If the battery voltage falls below 11.5 volts.