Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jaguar >> 2003 >> XJ8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 193 (Speed Control) >> Speed Control (4.2L) >> Speed Control - Description & Operation >> Forward Alert

Forward Alert

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Jaguar XKR, 2009 Jaguar XK8, 2008 Jaguar XKR, 2008 Jaguar XK8, and 2007 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

The forward alert system utilizes the Adaptive Speed Control system components. Forward alert is turned on and off independently of Adaptive Speed Control, via a switch mounted in the lower outboard knee bolster switchpack. Forward alert will notify the driver by means of a chime, and warning indicator in the instrument cluster and indication in the message center, when a target vehicle comes into range. The system will NOT use throttle or brake intervention to slow the vehicle.

Fig 1: Forward Alert Switch
GJ0009827Courtesy of JAGUAR CARS, INC.
Item Number Description
1 Forward alert switch

The forward alert switch is connected to the instrument cluster in a resistive ladder with the luggage compartment opening switch and the fuel filler flap switch. The instrument cluster sends the forward alert information to the Adaptive speed control module on the CAN bus.

NOTE: This system is intended as a driver aid and should be used as such. The system is NOT a collision warning or avoidance device.

The system sensitivity can be adjusted in the same manner as the Adaptive Speed Control, via the steering wheel mounted switches. Each adjustment is accompanied by a message in the message center.