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Home >> Jaguar >> 2003 >> XJ8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 193 (Speed Control) >> Speed Control (4.2L) >> Speed Control - Description & Operation >> Follow Mode
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Follow Mode

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A set speed is selected in the normal speed control manner and this speed is maintained until a slower vehicle is encountered in the lane ahead. When the vehicle ahead comes within the effective range of the radar sensor, the system identifies it as a target vehicle and an icon is illuminated on the instrument cluster to indicate that the system is in "follow mode". When the distance between the two vehicles closes to a set time gap, the adaptive speed control system closes the throttle and if necessary applies the brakes to maintain the set time gap. Follow mode is effectively a closed loop system. If several vehicles are ahead, the closest vehicle is chosen as the target to follow. If the target vehicle moves out of radar range, or if either vehicle changes lane or drops below the minimum operating speed, the system exits follow mode and the follow mode icon is extinguished. The adaptive speed control system will only raise its speed to the originally set speed, it will not accelerate past this speed to maintain a time gap.

Driver operation of the foot brake or control switches will immediately cancel adaptive speed control.

When the vehicle is in follow mode the follow mode warning indicator is illuminated in the instrument cluster and the current gap setting will be displayed in the message center.

Fig 1: Forward Alert And Follow Mode Warning Indicator
GJ0009825Courtesy of JAGUAR CARS, INC.
Item Number Description
1 Forward Alert warning indicator
2 Follow mode warning indicator