9
SmartCruise
Vehicle Cut In and Out
If another vehicle in an adjacent lane cuts in front and continues to the oppo-
site adjacent lane, SmartCruise is programmed to maintain the host vehicle
speed. If the speed of the target vehicle is faster than that of the host vehicle,
the host will continue to maintain its speed. However, if the speed of the target
vehicle is less than the host’s speed, the engine ECM will issue a command to
reduce fuel and may also engage the engine retarder. Once the target vehicle
moves out of the host’s lane, the host will restore the cruise control speed or
resume the following interval if another target vehicle is in the lane. Again, the
driver may need to apply the brakes to maintain a safe distance. The driver
may depress the brakes or accelerator pedal at any time to override Smart-
Cruise.
Cut in and Stay
If a target vehicle in an adjacent lane cuts in front of the host vehicle and
remains there, the system will respond by slowing the host to restore the set
following interval to the target vehicle. The engine ECM will reduce fuel and, in
some cases, SmartCruise may also engage the engine retarder to accomplish
this. Again, the driver may need to apply the brake to maintain a safe distance.
Vehicle Ahead Changes Lane
When maintaining a following interval to a target vehicle in front, and that
vehicle moves into an adjacent lane, the system will respond as follows. If
there is no other vehicle ahead (or within the range of the system), the host
will accelerate to the set cruise speed. If there is another vehicle ahead, the
host vehicle will restore the following interval to that vehicle. Again, the driver
may need to apply the brake to maintain a safe distance.
SmartCruise and Eaton Automated Transmissions
Under any situation that causes the system to slow the vehicle, and the engine
rpm reaches a preset minimum, the transmission will automatically down-
shift. Similarly, any situation that causes the vehicle to accelerate and a preset
maximum engine rpm is reached, the transmission will upshift.
Note:
This feature is not currently available with Allison Transmissions.
