Adaptive Cruise Control

Overview of the Adaptive Cruise Control System

The Adaptive Cruise Control (ACC) system is designed to maintain a set distance from the vehicle ahead or a set speed when there is no traffic interference. The speed can be set between 32 km/h (20 mph) and 200 km/h (124 mph). The system regulates the vehicle's speed using the engine and braking system.

Important Note: ACC is not a collision warning or prevention system. ACC does not react to the following objects:

• Stationary vehicles or vehicles moving at speeds below 10 km/h (6 mph).
• Pedestrians and objects on the roadway.
• Oncoming vehicles in the same lane.

The system uses a radar sensor that emits a signal forward to detect obstacles. The radar sensor is located in the front of the vehicle behind the air intake in the lower radiator grille to ensure an unobstructed path for the radar beam.

Safety Precautions:

• Do not use this system in conditions of poor visibility, fog, heavy rain, or snow.
• Do not use on icy or slippery roads.
• The driver is always responsible for attentive and safe driving.
• The front of the vehicle must be clean, without emblems or metallic objects that could interfere with the radar's operation, including protective covers.

Using Adaptive Cruise Control

System operation is controlled via the steering wheel controls. The driver can intervene at any time by applying the brake or accelerator pedal. Setting the speed, and activating/deactivating ACC is done the same way as with conventional cruise control. Refer to page 143 for details on using Cruise Control.

Controls:

1. SET+: Press to increase or set speed.
2. RES (Resume): Press to resume driving at the set speed.
3. Press to decrease the set speed.
4. CANCEL (Off): Press to cancel with the set speed stored in memory.
5. Press to decrease the following distance.
6. Press to increase the following distance.

Refer to page 145 for information on activating the Distance Keeping function.

Activating Distance Keeping Mode

Warning: In Distance Keeping mode, the vehicle does not automatically decelerate to a standstill, and the vehicle may not brake quickly enough to avoid a collision.

Note: Distance Keeping is a built-in function of Adaptive Cruise Control. It is not possible to disable Distance Keeping and still maintain speed with cruise control.

After setting the speed, the driver can release the accelerator pedal, and the set speed will be maintained. If a vehicle ahead changes into your lane or a slower vehicle appears ahead, the system will automatically adjust the speed to maintain the pre-set default distance. The vehicle is now in Distance Keeping mode. Refer to page 71 for details on Distance Keeping Mode (Amber).

The set distance is displayed on the information panel as a vehicle with a varying number of columns in front of it.

The vehicle will maintain a constant distance from the vehicle ahead until:

• The vehicle ahead accelerates beyond the system's set speed.
• The vehicle ahead changes lanes or exits the system's detection range.
• A new distance setting is selected.

If necessary, the vehicle's brakes will be automatically applied to reduce speed and maintain the distance to the vehicle ahead. The maximum braking force that ACC can apply is limited, and the driver may need to intervene with braking if necessary. Note: Driver intervention in braking deactivates the ACC system.

If ACC determines that its maximum braking is insufficient, an audible warning will sound, and ACC will continue to brake. The information panel will display the message DRIVER INTERVENE. Appropriate action should be taken immediately.

While in Distance Keeping mode, the system will automatically return the vehicle to the set speed when the road ahead is clear, for example, in the following situations:

• The vehicle ahead accelerates to a speed exceeding the set speed or changes lanes.
• You change lanes or exit onto a slip road.

The driver should intervene if the situation requires it. If the turn signal is used, ACC will reduce the distance to the vehicle ahead to react more quickly to the anticipated maneuver. If the maneuver is not performed, the previous distance will be restored after a few seconds. Accelerated response may not occur if ACC determines the action is inappropriate, for example, if your vehicle is already too close to the vehicle ahead or you have already changed lanes.

Changing the Set Distance in Distance Keeping Mode

Warning: The driver is responsible for selecting an appropriate distance based on driving conditions.

There are four distance settings. The selected distance setting is displayed on the information panel when the distance adjustment buttons are pressed. Each distance setting is indicated by an additional column in front of the vehicle symbol on the information panel. Upon ignition, the default distance setting (distance 3) is automatically selected for Adaptive Cruise Control. If the "Grass-Gravel-Snow" mode of the Terrain Response system is selected, the longest distance (distance 4) is initially set.

Blocking Cruise Control and Distance Keeping Mode Operation

Warning: If the driver presses the accelerator pedal, the ACC system will not brake to maintain the distance to the vehicle ahead.

Pressing the accelerator pedal while cruise control or distance keeping mode is active will cancel the set speed or distance maintenance. If the vehicle is in distance keeping mode, the distance keeping indicator will turn off, and the information panel will display the message CRUISE OVERRIDE. After releasing the accelerator pedal, ACC will resume operation, and the vehicle speed will decrease to the pre-set speed or lower if distance keeping mode is active.

Automatic ACC Deactivation

ACC deactivates but retains its settings in memory in the following cases:

• The CANCEL button is pressed.
• The brake pedal is pressed.
• Mode (N) is selected.
• Dynamic Stability Control (DSC) is active.
• Electronic Traction Control (ETC) is active.
• Hill Descent Control (HDC) is selected.

ACC deactivates and clears its settings from memory in the following cases:

• The ignition is switched off.
• Maximum vehicle speed is reached.
• ACC system malfunction.

Resuming Cruise Control and Distance Keeping Mode

Use the RES (Resume) button only when the driver clearly remembers the previously set speed and wishes to return to it.

When the RES button is pressed after canceling ACC (e.g., after braking), the ACC system will reactivate, provided the set speed has not been deleted from memory. The set speed will be displayed on the information panel, and the vehicle will resume the set speed, unless the distance keeping mode needs to be activated due to a vehicle ahead. Queue Assist will resume operation at speeds above 10 km/h (6 mph).

Note: After resuming the set speed, the acceleration coefficient is adjusted based on the previously set distance in distance keeping mode. The shorter the set distance, the faster the acceleration.

Note: When resuming the set speed while cornering, acceleration is reduced. The tighter the corner, the more acceleration is reduced. Remember that ACC and Queue Assist are primarily intended for situations requiring minimal steering input.

Driving Tips for Vehicles Equipped with Adaptive Cruise Control

In certain situations, ACC may alert the driver to the need for intervention through appropriate signals. The indication is given by an audible signal accompanied by the message DRIVER INTERVENE on the information panel if the ACC system detects the following:

• A system malfunction occurs during operation.
• The maximum braking force provided by the ACC system is insufficient.

Note: The ACC system operates only when the selector lever is in the Drive (D) position. Note: When Adaptive Cruise Control is activated, the accelerator pedal remains in the upper position. For normal ACC operation, release the pedal completely. Note: When the ACC system applies the brakes, the stop lights illuminate. Note: If the vehicle is equipped with the intelligent "Stop/Start" system, it may operate when the vehicle is stopped by Queue Assist. Press the accelerator pedal and hold it longer than usual to restart the engine and begin moving.

Problems with the Detection Sensor

Problems with obstacle detection can occur in the following circumstances:

1. When driving on a different trajectory than the vehicle ahead.
2. If the vehicle begins to change into your lane. In this case, it will only be detected after the maneuver is completed.
3. When entering or exiting a turn, there may be problems detecting vehicles ahead.
4. When overtaking a stationary vehicle. This may cause uncertainty about which vehicle to follow.
5. When the vehicle ahead moves out of your lane. This may cause uncertainty about which vehicle to follow.

In these situations, ACC may react unexpectedly. The driver must remain attentive and intervene if necessary.

ACC Malfunction

If a malfunction occurs while ACC or distance keeping mode is operating, the ACC system will deactivate and will not reactivate until the malfunction is rectified. The message DRIVER INTERVENE (DRIVER INTERVENTION REQUIRED) will briefly appear on the information panel, followed by the message CRUISE NOT AVAILABLE (CRUISE CONTROL UNAVAILABLE). If a malfunction of the ACC system or any related system occurs at any other time, the message CRUISE NOT AVAILABLE (CRUISE CONTROL UNAVAILABLE) will be displayed. The ACC system cannot be activated in any mode. ACC operation may be interrupted if there is dirt, snow, or ice on the radar sensor or its cover. Installing protective covers or metallic emblems on the vehicle may also affect ACC operation.

If there are obstacles to the radar sensor's operation, for example, due to snow or heavy rain, or if the system has a malfunction, the message FORWARD ALERT UNAVAILABLE (FORWARD ALERT FUNCTION UNAVAILABLE) will appear on the information panel. The vehicle can be driven, and the braking system will still function, but the enhanced emergency braking will not work. Contact your Land Rover dealer or authorized workshop to rectify the malfunction. Note: Braking efficiency will only be improved if the driver presses the brake pedal.

INTELLECTUAL EMERGENCY BRAKING

Warning: The system may not react to slowly moving vehicles.

Warning: This system does not react to stationary vehicles or vehicles moving in a direction different from yours.

If the distance to the vehicle ahead is too short, or if there is a large steering wheel or pedal movement (e.g., during a collision avoidance maneuver), warnings may not appear, and automatic braking will not occur.

The Intelligent Emergency Braking system uses the same radar sensor as the Adaptive Cruise Control system and the Forward Obstacle Warning system. The same operational limitations apply. Refer to page 144, OVERVIEW OF THE ADAPTIVE CRUISE CONTROL SYSTEM.

If the Adaptive Cruise Control system is installed, the Intelligent Emergency Braking (IEB) operates at any speed and will function even if the Forward Obstacle Warning and Adaptive Cruise Control functions are deactivated. IEB is designed to reduce the speed of a collision with a slower-moving vehicle ahead if a collision is unavoidable. If a collision is imminent, an audible warning will sound. If a collision becomes unavoidable, IEB will apply maximum braking force. After IEB is activated, the message IEB System Was Activated will appear on the information panel, and further system operation will be blocked until it is reset by a dealer or authorized workshop.

If there are obstacles to the radar sensor's operation, for example, due to snow or heavy rain, or if the system has a malfunction, the message IEB Not Available will appear on the information panel. You can continue driving, and the braking system will still work, but without IEB. If there are no signs that the radar sensor is obstructed, contact your Land Rover dealer or authorized workshop for consultation.

Forward Obstacle Warning

The Forward Obstacle Warning function offers limited capabilities for detecting and warning about objects ahead. Refer to page 72, FORWARD OBSTACLE WARNING (GREEN). If a vehicle or object ahead is at a distance visible to the driver, an audible warning will be given, and the message FORWARD ALERT (FORWARD OBSTACLE WARNING) will appear on the information panel. The enhanced emergency braking system will be activated. Refer to page 150, ENHANCED EMERGENCY BRAKING SYSTEM.

Note: When the ignition is turned off, the sensitivity setting for the Forward Obstacle Warning function is stored in memory.

ENHANCED EMERGENCY BRAKING SYSTEM

The Enhanced Emergency Braking system activates if the probability of a collision increases after the FORWARD ALERT message appears. The braking system will automatically begin to slow the vehicle in anticipation of sudden braking (this may be noticeable). If the brake pedal is then pressed sharply, braking will be maximized, even if the pedal pressure is light. Refer to page 129, EMERGENCY BRAKING SYSTEM (EBA).

The driver must take immediate action. The function's sensitivity is adjusted only when Adaptive Cruise Control is switched off. To adjust the settings, perform the following actions:

• Use the adaptive cruise control buttons on the steering wheel. Press the distance decrease button to display the current setting on the information panel, then press it again to decrease the function's sensitivity.
• Press the distance increase button to display the current setting on the information panel, then press it again to increase the function's sensitivity.

The information panel will display the message FWD ALERT <----> (FORWARD OBSTACLE WARNING <---->).

If the Adaptive Cruise Control system is installed, the Intelligent Emergency Braking (IEB) operates at any speed and will function even if the Forward Obstacle Warning and Adaptive Cruise Control functions are deactivated. IEB is designed to reduce the speed of a collision with a slower-moving vehicle ahead if a collision is unavoidable. If a collision is imminent, an audible warning will sound. If a collision becomes unavoidable, IEB will apply maximum braking force. After IEB is activated, the message IEB System Was Activated will appear on the information panel, and further system operation will be blocked until it is reset by a dealer or authorized workshop.