2008 CADILLAC STS Owners Manual

Adaptive Cruise Control might detect a vehicle that is
not in your lane and apply the brakes.
Adaptive Cruise Control might occasionally provide a
driver alert and/or braking that you consider unnecessary.
It could respond to signs, guardrails, and other stationary
objects when entering or exiting a curve. This is normal
operation. Your vehicle does not need service.
Highway Exit Ramps
{CAUTION:
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.
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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 want to brake to
keep your vehicle speed down. Applying the brake
disengages the system. 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.
Erasing Set Speed Memory
When the Adaptive Cruise Control switch or the ignition
is turned off, the set speed memory is erased.
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. SeeDIC Warnings and
Messages on page 3-80for more information.
Cleaning the System
The radar can become blocked by snow, ice, or dirt.
If so, you may need to turn off the engine and clean the
emblem/lens, located in the center of the front outside
grille. Remember, 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 you are unable to do so,
see your dealer/retailer.
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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(On/Off):Turn the control to this position to turn
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.
AUTO (Automatic):Turn the control to this position to
put the headlamps in automatic mode. AUTO mode,
turns the exterior lamps on and off depending upon
how much light is available outside of the vehicle.Due to the switch design, the automatic lights may be
disabled even if the control is in the AUTO position.
To enable automatic lighting do any of the following:
Turn the headlamp control from AUTO to off
and release the switch. It returns back to the
AUTO position by itself.
Turn the headlamp control from the parking
lamp position to AUTO.
Turn the headlamp control from the headlamp
position to AUTO.
To disable automatic lighting do any of the following:
Turn the headlamp control from AUTO to off
and release the switch. It returns back to the
AUTO position by itself.
Turn the headlamp control from AUTO to the
parking lamp position.
Turn the headlamp control from AUTO to the
headlamp position.
Disabling automatic lighting disables the automatic
headlamp operation, DRL, and IntelliBeam™
High-Beams (if the vehicle has them).
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;(Parking Lamps):Turn the control to this position
to turn on the parking lamps together with the following:
Sidemarker Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
5(Headlamps):Turn the control to this position to
turn on the headlamps, together with the previously
listed lamps and lights.
IntelliBeam™ Intelligent High-Beam
Headlamp Control System
If your vehicle has this feature, be sure to read this
entire section before using it.
IntelliBeam™ is an enhancement to the vehicle’s
headlamp system. Using a digital light sensor located
on the back of the rearview mirror, this system turns
the high-beam headlamps on and off according to
surrounding traffic conditions.
The IntelliBeam™ system turns the high-beam
headlamps on when it is dark enough, there is no other
traffic present, and the IntelliBeam™ system is enabled.
Turning On and Enabling IntelliBeam™
AUTO3(IntelliBeam™ On/Off):Press and release
the IntelliBeam™ button on the inside rear view mirror.
The IntelliBeam™ indicator on the mirror turns on.
Once the system has been turned on, it remains on each
time the vehicle is started. Additionally, the IntelliBeam™
system must be enabled.
To enable the IntelliBeam™ System, turn the exterior
lamp control to AUTO, with the turn signal/multifunction
lever in its neutral position. The High-Beam On
Light appears on the instrument panel cluster when
the high-beams are on. SeeHighbeam On Light
on page 3-72. Your vehicle has variable intensity
high-beams. The high-beam indicator on the instrument
panel cluster comes on as soon as the high-beams
start to come on, and remains on until the high-beams
have completely turned off. All vehicles that have
IntelliBeam™, however, quickly turn off the high-beams
if the system detects the sudden presence of vehicle
lights ahead.
Driving with IntelliBeam™
IntelliBeam™ only activates the high-beams when
driving over 20 mph (32 km/h).
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The high-beam headlamps remain on, under the
control of IntelliBeam™, until any of the following
situations occur:
The system detects an approaching vehicle’s
headlamps.
The system detects a preceding vehicle’s taillamps.
The outside light is bright enough that high-beam
headlamps are not required.
The high-beam headlamps are manually
turned on or you use the ash-to-pass feature.
SeeHeadlamp High/Low-Beam Changer on
page 3-9andFlash-to-Pass on page 3-13.
When either of these conditions occur, the
IntelliBeam™ feature is temporarily disabled until
the high-beam stalk is returned to the neutral
position. If either of these conditions occur and
IntelliBeam™ already has the high-beam headlamps
on, the IntelliBeam™ feature is disabled and the
IntelliBeam™ light in the mirror turns off.
The exterior lamp control is turned to any setting
except AUTO.
When this occurs, IntelliBeam™ is disabled until
the control is turned back to the AUTO position
and the AUTOMATIC LIGHTS ON message
displays on the DIC.
The IntelliBeam™ system is turned off at the inside
rearview mirror.
The vehicle’s speed drops below 15 mph (24 km/h).
IntelliBeam™ may not turn off the high-beams if the
system cannot detect other vehicle’s lamps because
of any of the following:
The others vehicle’s lamp(s) are missing, damaged,
obstructed from view, or otherwise undetected.
The other vehicle’s lamp(s) are covered with dirt,
snow and/or road spray.
The other vehicle’s lamp(s) cannot be detected due
to dense exhaust, smoke, fog, snow, road spray,
mist, or other airborne obstructions.
Your vehicle’s windshield is dirty, cracked,
or obstructed by something that blocks the view
of the IntelliBeam™ light sensor.
Your vehicle’s windshield is covered with ice,
dirt, haze, or other obstructions.
Your vehicle is loaded such that the front end of
the vehicle points upward, causing the IntelliBeam™
sensor to aim high and not detect headlamps
and taillamps.
You are driving on winding or hilly roads.
You might need to manually disable or cancel the
high-beam headlamps by turning the low-beam
headlamps on, if any of the above conditions exist.
3-35

Disabling and Resetting IntelliBeam™
at the Rearview Mirror
IntelliBeam™ can be disabled and reset to the original
factory setting by using the controls on the inside
rearview mirror.
AUTO
3(IntelliBeam™ On/Off):To disable the
system, press this button on the inside rearview
mirror. The IntelliBeam™ indicator turns off and does
not come back on until the IntelliBeam™ button is
pressed again.
When IntelliBeam™ has turned on the high-beams,
pull or push the high-beam stalk. This disables
IntelliBeam™ and the IntelliBeam™ indicator on the
rearview mirror turns off. To re-enable IntelliBeam™,
press the IntelliBeam™ button on the mirror.
A different sensitivity setting is available for dealer
diagnostics. This is done by pushing and holding this
button for 20 seconds until the light ashes three times.
If you accidentally activate this, the vehicle’s setting
automatically resets each time the ignition is turned off
and then on again; otherwise, refer to the text above
for resetting the system.
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.
3-36

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 3-33
for 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.
SeeLights On Reminder on page 3-72for additional
information.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving conditions,
but they can be especially helpful in the short periods
after dawn and before sunset. Fully functional daytime
running lamps are required on all vehicles rst sold
in Canada.
The DRL system will make the turn signal lamps
come on when the following conditions are met:
It is still daylight and the ignition is on,
the automatic lights are enabled, and
the transmission is not in PARK (P).
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 will
come 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.
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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.
SeeInstrument Panel Brightness on page 3-41.
To operate your 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. SeeDIC Warnings and Messages
on page 3-80.
The regular headlamp system should be turned
on when needed.
Light Sensor
The light sensor for the DRL is located on top of
the instrument panel. If the sensor is covered, it will
read dark, and the exterior lamps may come on
when they are not needed.
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