Adaptive Cruise Control Overview

em2 dm 05.03.001

For a description of cruise control steering wheel switches, see Fig. and see Table .

  1. Resume/Increase Set Cruise Speed

  2. Cancel Cruise Control

  3. Set/Decrease Set Cruise Speed

Fig. 1, Steering-Wheel Cruise Control Switches

Table 1, Steering Wheel Controls

Description

Function

RES/+

Resumes the set speed. Pressing and holding increases the set cruise speed.

CNCL

Cancels cruise control, but retains the set speed in memory.

SET/–

Sets the cruise speed while the vehicle is traveling at the desired speed. Pressing and holding decreases the set cruise speed.

    Table 1, Steering Wheel Controls

    When a vehicle is detected in front, the driver display shows a generic image of the detected vehicle, the detected vehicle's speed, and the distance to it. See Fig. .

    1. Current Speed

    2. High-Voltage Battery Status

    3. Projected Range on Current State of Charge

    4. High-Voltage Batteries State of Charge

    5. Speed of Vehicle Ahead

    6. Distance to Vehicle Ahead

    7. Adaptive Cruise Control (ACC) Active Telltale

    8. Lane Keep Assist (LKA) Active Telltale

    9. Maximum Regenerative Braking Level Requested

    10. Current Power Usage

    11. Suggested Transmission Gear

    12. Current Transmission Gear

    13. Current Driving Mode

    14. Powertrain Ready Telltale

    15. Power Limit in Current Driving Mode

    Fig. 2, Example of an Adaptive Cruise Control (ACC) Screen, ICC5

    Adaptive Cruise Control Functions and Activation Conditions

    ACC controls the speed of the equipped vehicle to maintain a safe distance from a vehicle detected in front.

    If ACC detects a vehicle in front driving at a slower speed, the brakes are applied, slowing the vehicle to maintain the set following distance.

    When a slower vehicle in front is no longer detected, ACC accelerates the equipped vehicle to the set speed.

    ACC allows the vehicle to operate in cruise down to 0 mph (0 km/h); as traffic in front of the vehicle slows and eventually stops, the speed adjusts with the traffic until it is stationary.

    If the vehicle ahead is stopped for two seconds or less, ACC resumes when the vehicle ahead moves. If the vehicle ahead is stopped for more than two seconds, the driver—after carefully checking surrounding traffic—must press the resume button or tap the accelerator pedal to move forward.

    ACC also slows the vehicle if it exceeds the set speed (on a downhill grade, for example).

    If there is no vehicle in front, ACC operates in the same way as standard cruise control when the vehicle is traveling above 10 mph (15 km/h).

    Important: IMPORTANT: Nothing should be put between the driver and the seat, such as a heating pad, massage pad, or similar items. Doing so may prevent the seat occupancy sensor from functioning correctly.

    ACC to 0 mph verifies seat occupancy before resuming forward motion after slowing down to 0 mph.

    ACC cannot be activated, or is automatically deactivated, if:

    • the driver is not in their seat to activate the seat occupancy sensor;

    • reverse gear is selected;

    • the anti-lock braking system (ABS) is deactivated;

    • there is a malfunction in the brake system or the electronic management system; or

    • the distance sensor initialization is not yet complete.

    Activating Adaptive Cruise Control and Setting the Speed

    Activate ACC by setting the cruise speed using the controls on the left-hand steering wheel switch pod.

    When driving at the desired speed, press the –/SET switch to activate ACC and store the set speed.

    If cruise control is deactivated, the stored speed can be activated again by pressing the +/RES switch.

    When activated, the driver display shows the adaptive cruise control telltale shown, see Fig. and the set speed.

    Fig. 3, Adaptive Cruise Control Active Telltale

    If the brake pedal is pressed, ACC is deactivated automatically.

    If ACC becomes unavailable, a message appears on the driver display screen. If the vehicle is programmed to allow for standard cruise control, the message displayed allows the driver to use standard cruise control. See Fig..

    Fig. 4, Adaptive Cruise Control (ACC) Unavailable, ICC5

    Increasing or Reducing the Adaptive Cruise Control Speed

    The ACC speed setting can only be set when driving.

    Press the –/SET switch on the steering wheel switch pod to set the cruise speed when the vehicle is traveling at the desired speed.

    To decrease the set cruise speed, press or press and hold –/SET. A press decreases the ACC set speed by -1 units (mph or km/h). A press and hold decreases the ACC set speed by -5 units (mph or km/h).

    Setting the Distance to the Vehicle in Front

    If equipped, the following distance can be adjusted under 'Settings' > 'Driving Assistance' > 'Adaptive Cruise Control.'

    Important: Make sure that the minimum distance required by law is maintained.

    Overtaking When Using Adaptive Cruise Control

    Note: It is possible to exceed the set speed when overtaking.

    The set speed of ACC can be exceeded using the accelerator pedal. When the accelerator pedal is released, the ACC set speed is resumed.

    Deactivating Adaptive Cruise Control

    To deactivate ACC, press the CNCL switch on the steering wheel switch pod or press the brake pedal.

    Note: The set speed remains stored when ACC is deactivated.

    Note:
    Parent topic: Detroit Assurance Adaptive Cruise Control (ACC)
    Document Number: 0000088024
    Manual Publication Date: 2024-03-21
    Topic Publication Date: 2025-02-13