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Home >> Land Rover >> 2015 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Speed Control - V6 S/C 3.0L Petrol -- Range Rover/L405) >> Speed Control - V6 S/C 3.0L Petrol >> Speed Control (Description And Operation) >> Description And Operation >> Operation >> Follow Mode

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, the system identifies it as a target vehicle. To indicate that the system is in follow mode, the follow mode warning indicator illuminates. When the distance between the two vehicles closes to the set time gap, the adaptive speed control system reduces engine speed and, if necessary, applies the brakes to maintain the set time gap.

Automatic braking is limited to approximately 30% of full pressure (0.3 G deceleration) and is intended to provide a smooth, gradual deceleration in follow mode conditions.

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, the system exits follow mode and extinguishes the follow mode warning indicator. The adaptive speed control system then increases vehicle speed back to the original set speed.