At very low speed, Queue assist may stop
for stationary objects, e.g., when the
vehicle ahead changes lane to reveal a
stationary object. The vehicle's radar
cannot always distinguish between a
stationary vehicle and a fixed object like
a road sign, drain cover or temporary
barrier. This may cause unexpected
braking or cancellation, and the driver
should intervene if appropriate.
ACC AUTO OFF
ACC will disengage, but not clear the
memory when:
• The CANCEL button is pressed.
• The brake pedal is pressed.
• Neutral (N) is selected.
• Dynamic Stability Control (DSC)
activates.
• Electronic Traction Control (ETC)
activates.
• Hill Descent Control (HDC) is selected.
• Certain Terrain response modes are
selected, i.e., Sand and Mud-ruts.
• The difference between the vehicle's
current speed and the set speed is too
great.
• The accelerator pedal is used to
accelerate beyond the set speed for
too long a period, i.e., more than 5
minutes. See 131, OVERRIDING THE
SPEED AND FOLLOW MODE.
• Maximum vehicle speed is reached.
• Maximum engine revolution speed is
reached. 5 000 rpm for a diesel engine
and 7 000 rpm for a petrol engine.
• The radar sensor is blocked by mud,
snow or ice.
ACC will disengage, and clear the memory
when:
• The ignition system is switched off.
• A fault occurs in the ACC system.
RESUMING THE SPEED AND
FOLLOW MODE
RES should only be used if the
driver is aware of the set speed and
intends to return to it.
By pressing the RES button after ACC has
been cancelled (e.g. after braking), ACC
will become active again provided that
the set speed memory has not been
erased. The original set speed will be
resumed (unless a vehicle ahead causes
Follow mode to become active) and the
set speed will be displayed in the Message
centre. Queue assist may be resumed
above 10 km/h (6 mph).
Note: When the set speed is resumed,
the rate of acceleration is influenced by
the previously set Follow mode gap. A
closer set gap will promote greater
acceleration.
Note: When resuming a set speed while
in a curve, acceleration is reduced. A more
severe curve will reduce acceleration
further. Remember that ACC and Queue
assist are primarily for use when minimal
steering is required.
HINTS ON DRIVING WITH ACC
During some situations, ACC may provide
the driver with an indication that
intervention is required.
An audible alarm will sound, accompanied
by the message DRIVER INTERVENE in
the Message centre, if ACC detects:
132
Adaptive cruise control
© Jaguar Land Rover Limited 2015
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