Optimized Idle

Optimized Idle reduces idle time by automatically stopping and restarting the engine. Besides saving fuel, it helps keep the batteries charged while maintaining engine and cab temperature.

The following conditions must be met for the optimized idle to function:

• Vehicle in neutral gear

• Park brake set

• Hood latched

• Sleeper fan on

Optimized idle can be started with the engine running or the engine off.

With the key on, go to Vehicle Settings and scroll down to Optimized Idle. Press OK.

To enable optimized idle, press okay again. A screen will appear saying the default battery mode is on and interior comfort mode is off.

If you want to optimize the environment of the sleeper section, turn on comfort mode. Press the right hand arrow in the left hand switch pod to turn interior comfort mode on and then press OK.

The vehicle will go into standby mode, an under hood alarm will briefly sound, and the engine will crank and achieve 900 rpm. The ICUC screen will then state that it is in interior comfort mode and the engine and air conditioning/fan will run until it achieves the temperature requested by the driver. The engine will then shut down.

Optimized idle can be shut off by ICUC controls or pressing the brake. If the sleeper fan is turned off, optimized idle will not shut down but the engine will.

For a fuller description of Optimized Idle, see the chapter on Optional Engine Systems.