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Black plate (38,1)
Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
9-38
Driving and Operating
Alerting the Driver
If ACC is engaged, driver action
may be required when:
.
ACC cannot apply sufficient
braking because of approaching
a vehicle too rapidly.
.
A temporary condition prohibits
ACC from operating. See
Vehicle Messages on page 5
‑
34
.
.
A malfunction is detected in the
system. See
Vehicle Messages
on page 5
‑
34
.
When any of these conditions occur,
the collision alert symbol on the
HUD (if equipped) will flash on the
windshield. Either eight beeps will
sound from the front, or both sides
of the Safety Alert Seat will pulse
five times. See
“
Collision/Detection
Systems
”
under
Vehicle
Personalization on page 5
‑
44
.
See
Defensive Driving on page 9
‑
3
.
Approaching and Following a
Vehicle
The vehicle ahead symbol is located
in the HUD display.
The vehicle ahead symbol only
displays when a vehicle is detected
in your vehicle
’
s path.
If this symbol is not displaying, ACC
will not respond to or brake to
vehicles ahead.
ACC automatically slows the vehicle
down and adjusts vehicle speed to
follow the vehicle in front at the
selected follow gap. The vehicle
speed increases or decreases to
follow the vehicle in front of you, but
will not exceed the set speed. It may
apply limited braking, if necessary.
When braking is active, the brake
lights will come on. The automatic
braking may feel or sound different
than if the brakes were applied
manually. This is normal.
Stationary or Very Slow-Moving
Objects
{
WARNING
Adaptive Cruise Control (ACC)
may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system will not brake for a vehicle
that it has never detected moving.
This can occur when a detected
vehicle changes lanes at an
intersection or in stop-and-go
traffic and then a stopped or
slow-moving vehicle appears.
Your vehicle may not stop and
could cause a crash. Use caution
(Continued)