
Black plate (21,1)Cadillac STS Owner Manual - 2011
The range of selectable distances may not be
appropriate for all drivers and driving conditions. If you
prefer to travel at a following distance farther than
Adaptive Cruise Control allows, disengage the system
and drive manually.
United States version
shown, Canada similar A graphic on the HUD
indicates the selected
following distance. This
picture shows a maximum
follow distance.
The vehicles will move closer together as you select a
smaller following distance.
Alerting the Driver
The alert symbol flashes
on the HUD and a
warning beep sounds
when driver action is
required. Driver action is required when:
.Adaptive Cruise Control cannot apply sufficient
braking because you are approaching a vehicle too
rapidly.
.The vehicle speed drops below about 40 km/h
(25 mph).
.A temporary condition prohibits Adaptive Cruise
Control from operating. See
DIC Warnings and
Messages
on page 4‑76for more information.
.A malfunction is detected in the system. See DIC
Warnings and Messageson page 4‑76for more
information.
See Defensive Driving on page 5‑2.
{WARNING:
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 5‑2.
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Black plate (22,1)Cadillac STS Owner Manual - 2011
Approaching and Following a Vehicle
The vehicle ahead symbol only appears on the HUD
when a vehicle ahead is detected in your path.
If this symbol does not appear, or disappears briefly,
Adaptive Cruise Control will not respond to vehicles you
may see ahead.
{WARNING:
When the Adaptive Cruise Control radar is
blocked by snow, ice, or dirt, it may not detect a
vehicle ahead. Adaptive Cruise Control may not
have time to slow your vehicle enough to avoid a
collision. Do not use Adaptive Cruise Control
when the radar is blocked by snow, ice, or dirt.
Keep your radar clean. See“Cleaning the
System” later in this section.
Adaptive Cruise Control automatically slows your
vehicle down when approaching a slower moving
vehicle. It then adjusts your speed to follow the vehicle
in front at the selected following distance. Your 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,
your brake lights come on. It may feel or sound different
than if you were applying the brakes yourself. This is
normal.
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Black plate (23,1)Cadillac STS Owner Manual - 2011
Stationary or Very Slow-Moving Objects
{WARNING:
Adaptive Cruise Control may not detect and
react to stationary or slow‐moving vehicles or
other objects ahead of you. You could crash into
an object ahead of you. Do not use Adaptive
Cruise Control when approaching stationary or
slow‐moving vehicles or other objects.
{WARNING:
Adaptive Cruise Control may not detect and react
to stationary or slow-moving vehicles or other
objects ahead of you. Your vehicle may accelerate
toward objects, such as a stopped vehicle that
suddenly appears after the lead vehicle changes
lanes. Your complete attention is always required
while driving and you should be ready to take
action and apply the brakes.
Low-Speed Deactivation
If your speed falls below 40 km/h (25 mph) while
following a vehicle ahead, Adaptive Cruise Control will
begin to disengage. The driver alert symbol on the HUD
will flash and the warning beep will sound. The driver
must take action since Adaptive Cruise Control will not
slow the vehicle to a stop.
Deactivation When Head-Up Display is
Turned Off
If the HUD is turned off when Adaptive Cruise Control is
engaged, it will begin to disengage. A warning beep
sounds and the message RADAR CRUISE NOT
READY appears on the Driver Information Center (DIC).
SeeDIC Warnings and Messages
on page 4‑76for
additional information. If Adaptive Cruise Control was
braking when the HUD is turned off, the braking will
continue briefly.
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Black plate (24,1)Cadillac STS Owner Manual - 2011
Passing a Vehicle/Adaptive Cruise Control
Override
To increase speed to pass a vehicle, use the
accelerator pedal. While you are doing this, the system
will not automatically apply the brakes. A PEDAL
APPLIED ACC OVERRIDE message will appear on the
HUD. SeeHead-Up Display (HUD)
on page 4‑38for
additional information. Once you pass the vehicle and
remove your foot from the accelerator pedal, Adaptive
Cruise Control returns to normal operation and the
brakes can be applied, if needed.
{WARNING:
If you rest your foot on the accelerator pedal, the
system will not automatically apply the brakes.
You could crash into a vehicle ahead of you. Do
not rest your foot on the accelerator pedal when
using Adaptive Cruise Control.
Curves in the Road
{WARNING:
Due to Adaptive Cruise Control limitations in
curves, it may respond to a vehicle in another
lane, or may not have time to react to a vehicle in
your lane. You could crash into a vehicle ahead of
you, or lose control of your vehicle. Give extra
attention in curves and be ready to use the brakes
if necessary. Select an appropriate speed while
driving in curves.
Adaptive Cruise Control might operate differently in a
sharp curve. It might reduce your speed if the curve is
too sharp.
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Black plate (26,1)Cadillac STS Owner Manual - 2011
Highway Exit Ramps
{WARNING:
Adaptive Cruise Control may lose track of the
vehicle ahead and accelerate up to your set
speed while entering or on highway exit ramps.
You could be startled by this acceleration and
even lose control of the vehicle. Disengage
Adaptive Cruise Control before entering a
highway exit ramp. Do not use Adaptive Cruise
Control while entering or on exit ramps.
Other Vehicle Lane Changes
If another vehicle enters the same lane as you,
Adaptive Cruise Control will not detect the vehicle until
it is completely in the lane. Be ready to take action and
apply the brakes yourself.
Using Adaptive Cruise Controls on Hills
and When Towing a Trailer
How well Adaptive Cruise Control works on hills
and while a trailer is being towed depends on your
vehicle speed, vehicle load, traffic conditions, and the
steepness of the hills. It might not detect a vehicle in
your lane while driving on hills. While going up steep
hills, you might want to use the accelerator pedal to
maintain your vehicle speed. While going downhill and
towing a trailer, you might might have to brake to keep
the vehicle speed down. When the brakes are applied
the cruise control is disengaged. You may choose not to
use Adaptive Cruise Control on steep hills when towing
a trailer.
Disengaging Adaptive Cruise Control
Apply the brake pedal or move the Adaptive Cruise
Control switch to off, to disengage the system. Adaptive
Cruise Control information does not appear on the HUD
while the system is not engaged.
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Black plate (27,1)Cadillac STS Owner Manual - 2011
Erasing Set Speed Memory
The set speed memory is erased from memory by
moving the Adaptive Cruise Control switch to
9or if
the ignition is turned off.
Other Messages
There are three messages that may appear on the DIC.
They are SERVICE RADAR CRUISE, RADAR CRUISE
NOT READY and CLEAN RADAR. These messages
will appear to indicate a problem with the Adaptive
Cruise Control. See DIC Warnings and Messages
on
page 4‑76for more information.
Cleaning the System
The radar can become blocked by snow, ice, or dirt.
If this happens, turn off the engine and clean the
emblem/lens, located in the center of the front outside
grille. Do not use Adaptive Cruise Control in icy
conditions, or when visibility is low, such as in fog,
rain or snow.
To clean the emblem/lens, wipe the surface with a
soft cloth. After cleaning the emblem/lens, engage the
Adaptive Cruise Control. If there are problems, see your
dealer.
Headlamps
The exterior lamp control is located in the middle of the
turn signal/multifunction lever.
O (Exterior Lamp Control): Turn the control with this
symbol on it to operate the exterior lamps.
The exterior lamp control has four positions:
O(Off): Turns off all lamps and automatic lighting
features, including Daytime Running Lamps (DRL)
and IntelliBeam
®.
This is a momentary switch that springs back to the
AUTO position when released. An AUTOMATIC
LIGHTS ON message appears on the DIC when
automatic lights are enabled or an AUTOMATIC
LIGHTS OFF message appears on the DIC when
the automatic lights are disabled.
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Black plate (31,1)Cadillac STS Owner Manual - 2011
Cleaning the IntelliBeam Light Sensor
The light sensor is located on the inside of the vehicle
at the back of the rearview mirror.
Clean the light sensor window, periodically, using glass
cleaner on a soft cloth. Gently wipe the sensor window.
Do not spray glass cleaner directly on the surface of the
sensor window.
Wiper Activated Headlamps
This feature activates the headlamps and parking lamps
after the windshield wipers have been in use for about
six seconds. For this feature to work, automatic lighting
must be enabled. SeeHeadlamps
on page 4‑27for
additional information.
When the ignition is turned off, the wiper-activated
headlamps will immediately turn off. They will also turn
off if the windshield wiper control is turned off.
Headlamps on Reminder
A warning chime will sound if the exterior lamp control
is left on in either the headlamp or parking lamp position
and the driver's door is opened with the ignition off. See
Lights On Reminder
on page 4‑67for additional
information.
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Black plate (32,1)Cadillac STS Owner Manual - 2011
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required on
all vehicles first sold in Canada.
The DRL system comes on when the following
conditions are met:
.It is still daylight and the ignition is on.
.The automatic lights are enabled.
.The transmission is not in P (Park).
When DRL are on, only the front turn signal lamps will
be on. No other exterior lamps will be on when the DRL
are being used. The instrument panel will not be lit.
When the automatic lights are enabled and it is dark
enough outside, the DRL will turn off and the low-beam
headlamps will turn on. When it is bright enough
outside, the low-beam headlamps will go off, and the
DRL will turn back on. If the vehicle is started in a dark
garage, the automatic headlamp system comes on
immediately. Once the vehicle leaves the garage,
it will take about one minute for the automatic
headlamp system to change to DRL if it is light outside. During that delay, the instrument panel cluster may not
be as bright as usual. Make sure the instrument panel
brightness lever is in the full bright position. See
Instrument Panel Brightness on page 4‑35.
To operate the vehicle with the DRL off, turn the exterior
lamp control off and then do one of the following:
.Turn the exterior lamp control to the parking lamp
position.
.Turn the exterior lamp control to the headlamp
position.
.Turn the exterior lamp control from AUTO to off
and back to AUTO.
An AUTOMATIC LIGHTS OFF message will appear on
the DIC, showing that automatic lighting has been
disabled. See DIC Warnings and Messages
on
page 4‑76.
The regular headlamp system should be turned on
when needed.
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