Page 210 of 528

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 (25,1)Cadillac STS Owner Manual - 2011
When following a vehicle and entering a curve,
Adaptive Cruise Control could lose track of the vehicle
in your lane and your vehicle could accelerate. When
this happens, the vehicle ahead symbol will not appear
on the HUD.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.
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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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Page 224 of 528

Black plate (38,1)Cadillac STS Owner Manual - 2011
Head-Up Display (HUD)
{WARNING:
If the HUD image is too bright, or too high in your
field of view, it may take you more time to see
things you need to see when it is dark outside. Be
sure to keep the HUD image dim and placed low
in your field of view.
For vehicles with the Head-Up Display (HUD), some of
the driver information that appears on the instrument
panel cluster is projected onto an image on the
windshield.
The information can be displayed in English or metric
units. To change from English to metric units, see DIC
Operation and Displays on page 4‑70.
The HUD consists of the following information:
.Speedometer
.Turn Signal Indicators
.High-Beam Indicator Symbol
.Driver Shift Control Transmission Feature, see
Automatic Transmission Operation on page 3‑30
.Check Gauges Icon
.Adaptive Cruise Control Features and Indicators
(If Equipped), see Adaptive Cruise Controlon
page 4‑15
.Forward Collision Alert Features and Indicators
(If Equipped), see Forward Collision Alert (FCA)
System on page 4‑6
.Radio Features
United States version
shown, Canada similar
Always scan the instrument panel displays, controls
and driving environment just as you would in a vehicle
without HUD, so important warning lights are not
missed. Under important warning conditions, the
CHECK GAGES message will display in the HUD.
View the Driver Information Center (DIC) for more
information.
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Black plate (41,1)Cadillac STS Owner Manual - 2011
The Speed Advisor can be set to show a speed alert
when the vehicle speed exceeds the speed alert limit as
set in the DIC menu. Depending on the level of the
HUD on the vehicle, your HUD may work like either of
the following:
.The HUD speedometer will turn red when the
vehicle speed exceeds the speed alert limit.
When the vehicle speed is at or below the alert
limit and above the posted speed or advisory
speed, the speedometer turns yellow. If the Speed
Alert setting in the DIC is set to AT LIMIT, the
speedometer will not turn yellow. When the vehicle
speed is at or below the posted speed or advisory
speed, the speedometer remains green.
.The HUD speedometer will turn yellow when the
vehicle speed exceeds the speed alert limit. When
the vehicle speed is at or below the alert limit, the
speedometer remains green.
PEDAL APPLIED ACC OVERRIDE
When the PEDAL APPLIED ACC OVERRIDE message
displays, the accelerator pedal is being pressed and
the Adaptive Cruise Control is overridden and cannot
automatically apply the brakes. Once the accelerator
pedal is released, the Adaptive Cruise Control will
return to normal operation and be able to apply the
brakes, if needed.
An Adaptive Cruise Control active symbol, alert symbol
or vehicle ahead symbol may also appear. See
Adaptive Cruise Control
on page 4‑15for more
information.
Care of the HUD
Clean the inside of the windshield as needed to remove
any dirt or film that reduces the sharpness or clarity of
the HUD display.
To clean the HUD, spray household glass cleaner on a
soft, clean cloth. Wipe the HUD lens gently, then dry.
Notice: When cleaning, be careful not to scratch the
HUD or camera lenses. Do not sprayglass cleaner
directly on the HUD lens because the cleaner could
leak inside the unitand cause damage.
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Black plate (67,1)Cadillac STS Owner Manual - 2011
Security Light
For information regarding
this light and the vehicle's
security system, see
Theft-Deterrent System
on page 3‑22.
Front Fog Lamp Light
The fog lamp light comes
on when the fog lamps
are in use.
The light goes out when the fog lamps are turned off.
See Fog Lamps
on page 4‑33for more information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
See Headlamps on Reminder
on page 4‑31for more
information.
Cruise Control Light
This light comes on
whenever the cruise
control is set.
The light goes out when the cruise control is turned off.
See Cruise Control
on page 4‑12andAdaptive Cruise
Controlon page 4‑15for more information.
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Black plate (79,1)Cadillac STS Owner Manual - 2011
CHECK TIRE PRESSURE or TIRE LOW
ADD AIR TO TIRE
This message displays when the pressure in one or
more of the vehicle's tires Is low. It also gives the
location of the tire. The low tire pressure warning light
will also comes on. SeeTire Pressure Light
on
page 4‑62. If a tire pressure message appears on the
DIC, stop as soon as you can. Have the tire pressures
checked and set to those shown on the Tire Loading
Information label. See Tires
on page 6‑50,Loading the
Vehicleon page 5‑23, and Inflation - Tire Pressureon
page 6‑58. The DIC also shows the tire pressure
values. See DIC Operation and Displayson page 4‑70.
CHECK WASHER FLUID
This symbol appears
with this message.
This message displays when the windshield washer
fluid is low. Fill the windshield washer fluid reservoir as
soon as possible. See Windshield Washer Fluid
on
page 6‑34for more information.
CLEAN RADAR
This message displays when the Adaptive Cruise
Control system is disabled because the radar is blocked
and cannot detect vehicles in your path. It may also
activate during heavy rain or due to road spray. To
clean the system, see “Cleaning the System” under
Adaptive Cruise Control on page 4‑15.
DRIVER DOOR AJAR
This symbol appears
with this message.
This message displays when the driver door is not
closed completely. Make sure that the door is closed
completely.
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