Cadillac 2009 DTS Owner's Manual page 164

Alerting the Driver
The alert symbol flashes and a warning beep sounds
when driver action may be required. If ACC is engaged,
the alert symbol will flash when:
•
ACC cannot apply sufficient braking because you
are approaching a vehicle too rapidly.
•
The vehicle speed drops below about
20 mph (32 km/h).
•
A temporary condition prohibits ACC from operating.
See DIC Warnings and Messages on page 3-73 for
more information.
•
A malfunction is detected in the system. See DIC
Warnings and Messages on page 3-73 for more
information.
See Defensive Driving on page 4-2.
3-24
The ACC alert symbol is
located on the display at
the top of the instrument
panel to the right of the
driver.
CAUTION:
{
Adaptive Cruise Control has only limited braking
ability to slow your vehicle. In some cases, Adaptive
Cruise Control may not have time to slow your
vehicle enough to avoid a collision. Be ready to
take action and apply the brakes yourself.
See Defensive Driving on page 4-2.
Approaching and Following a Vehicle
The vehicle ahead symbol only appears when a vehicle
is detected in your path.
If this symbol does not appear, or disappears briefly,
ACC will not respond to vehicles you may see ahead.
The vehicle ahead symbol
is located on the top of the
instrument panel to the
right of the driver.