Acura 2007 RL Owner's Manual page 295

Automatic ACC Cancellation
When ACC is automatically
cancelled, the beeper sounds three
times, and an ACC OFF message
appears on the multi-information
display for 3 seconds.
Any of these conditions may cause
ACC to cancel:
The vehicle speed decreases
below 22 mph (35 km/h).
Poor weather (rain, fog, snow, etc.)
When the radar sensor in the front
grille gets dirty.
The vehicle ahead of you cannot
be detected.
An abnormal tire condition is
detected, or the tires are skidding.
Driving on a mountainous road, or
driving off road for extended
periods.
Abrupt steering wheel movement.
When the ABS or VSA is activated.
When the VSA indicator comes on.
If ACC is cancelled by any these
conditions, wait until the condition
improves, then press the RES/
ACCEL button to restore ACC.
When you do this, the vehicle will
resume its set cruising speed.
If you turn the ignition switch to the
ACCESSORY (I) or LOCK (0)
position after ACC was automatically
cancelled, the set speed is erased,
and you must enter it again (see
page 283 ).
Adaptive Cruise Control (ACC)
ACC Indicator
ACC INDICATOR
This indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position. If it comes on at any other
time, there is a problem in the ACC
system. If this happens, take the
vehicle to your dealer to have it
checked.
The ACC system cannot be used
while this indicator is on.
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