2007 CADILLAC STS ignition

Twilight Sentinel®
Twilight Sentinel®can turn your lamps on and off
for you.
A light sensor on top of the instrument panel
makes the Twilight Sentinel
®work, so be sure it is
not covered.With Twilight Sentinel
®the following will happen:
When it is dark enough outside, the front
turn signal lamps (DRL) will go off, and
the headlamps and parking lamps will come
on. The other lamps that come on with
headlamps will also come on.
When it is bright enough outside, the
headlamps will go off, and the front turn signal
lamps (DRL) will come on, as long as the
exterior lamp switch is in the off position.
If you start your vehicle in a dark garage, the
automatic headlamp system will come on
immediately. Once you leave 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
might not be as bright as usual. Make sure
the instrument panel brightness control is in full
bright position. SeeInstrument Panel Brightness
on page 220for more information.
You can idle the vehicle with the lamps off, even
when it is dark outside. First set the parking
brake while the ignition is in OFF/ACCESSORY.
Then start the vehicle. The lamps will stay off until
the parking brake is released.
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Twilight Sentinel®also provides exterior
illumination as you leave the vehicle. If Twilight
Sentinel
®has turned on the lamps when you turn
off the ignition, the lamps will remain on until:
The exterior lamp switch is moved from off to
the parking lamp position.
A delay time that you select has elapsed.
SeeVehicle Personalization on page 148to select
the delay time that you want. You can also
select no delay time.
If the ignition is turned off with the exterior lamp
switch in the parking lamp or headlamp position,
the Twilight Sentinel
®delay will not occur.
The lamps will turn off as soon as the switch is
turned off.
As with any vehicle, the regular headlamp system
should be turned on when needed.
Exterior Lighting Battery Saver
If the parking lamps or headlamps have been
left on, the exterior lamps will turn off about
10 minutes after the ignition is turned off. This
protects against draining the battery in case you
have accidentally left the headlamps or parking
lamps on. The battery saver does not work if the
headlamps are turned on after the ignition is
turned off.
If you need to leave the lamps on for more than
10 minutes, use the exterior lamp control to
turn the lamps back on.
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Instrument Panel Brightness
This feature controls the
brightness of the
instrument panel lights.
Press in the center knob on the DIC control panel
until the knob pops out. Then turn the knob
clockwise to brighten the lights or counterclockwise
to dim them. If you turn the knob completely
clockwise, the interior lamps will turn on.
Entry Lighting
The entry lighting system turns on the reading and
dome lamps and the backlighting to the exterior
lamp control when a door is opened or if you
press the remote keyless entry transmitter
unlock button. If activated by the transmitter, the
lighting will remain active for about 25 seconds.
The entry lighting system uses the light sensor; it
must be dark outside in order for the lamps to
turn on. The lamps turn off about 25 seconds after
the last door is closed. They will dim to off if the
ignition is on, or immediately deactivate if the
power locks are activated.
Parade Dimming
This feature prohibits dimming of the instrument
panel displays and backlighting during daylight
hours when the key is in the ignition and the
headlamps are on. This feature operates with the
light sensor and is fully automatic. When the
light sensor reads darkness outside and the
parking lamps are active, the instrument panel
displays can be adjusted by turning the instrument
panel brightness knob. SeeInstrument Panel
Brightness on page 220for additional information.
Base Level Shown,
Uplevel Similar
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Reading Lamps
The reading lamps are located on the overhead
console. These lamps come on automatically when
any door is opened.
For manual operation, press the button next to
each lamp to turn it on or off.
If the reading lamps are left on, they automatically
shut off 10 minutes after the ignition has been
turned off.
Battery Load Management
The battery load management feature is designed
to monitor the vehicle’s electrical load and
determine when the battery is in a heavy discharge
condition. During times of high electrical loading,
the engine may idle at a higher
revolutions per minute (rpm) setting than normal to
make sure the battery charges. High electrical
loads may occur when several of the following are
on: headlamps, high beams, fog lamps, rear
window defogger, the climate control fan at high
speeds, heated seats and engine cooling fans.If the battery continues to discharge, even with the
engine idling at a higher rpm setting, some
electrical loads will automatically be reduced.
When this occurs, the rear window defogger may
take slightly longer to clear the glass and the
fan may cut back to a lower speed. For more
battery saving information, see “Battery Saver
Active Message” underDIC Warnings and
Messages on page 264.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC), you
may see the voltage move up or down. This is
normal. If there is a problem, an alert will be
displayed.
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The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very high
electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s
output and the vehicle’s electrical needs. It
can increase engine idle speed to generate more
power, whenever needed. It can temporarily
reduce the power demands of some accessories.Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action may
be noticeable to the driver. If so, a Driver
Information Center (DIC) message might be
displayed, such as Battery Saver Active or Service
Battery Charging System. If this message is
displayed, it is recommended that the driver
reduce the electrical loads as much as possible.
SeeDIC Warnings and Messages on page 264.
Inadvertent Power Battery Saver
This feature is designed to protect your vehicle’s
battery against drainage from the interior
lamps, trunk lamp, glove box lamp, or the garage
door opener. When the ignition is turned off,
the power to these features will automatically turn
off after 10 minutes (three minutes if a new car
has 15 miles (24 km) or less). Power will be
restored for an additional 10 minutes if any door is
opened, the trunk is opened or the courtesy
lamp switch is turned on.
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To turn the HUD image off, turn the knob
counter-clockwise.
Polarized sunglasses could make the HUD image
harder to see.
As light shines out from the HUD, it is possible for
light to shine back in. In rare occurrences,
when the sun is at a specic angle and position,
the sun’s rays can shine back into the HUD. When
this occurs, the display device within the HUD
will be temporarily illuminated. The event will end
when the vehicle’s angle to the sun changes.
Clean the inside of the windshield as needed to
remove any dirt or lm that reduces the sharpness
or clarity of the HUD image.
To clean the HUD, spray household glass cleaner
on a soft, clean cloth. Wipe the HUD lens gently,
then dry it.
Notice:When cleaning, be careful not to
scratch the HUD or camera lenses. Do
not spray glass cleaner directly on the HUD
lens because the cleaner could leak inside the
unit and cause damage.
If the ignition is on and you cannot see the HUD
image, check to see if:
Something is covering the HUD unit.
The brightness is adjusted properly.
The HUD image is adjusted to the
proper height.
Ambient light in the direction your vehicle is
facing is low.
A fuse is blown. SeeFuses and Circuit
Breakers on page 487.
Keep in mind that your windshield is part of the
HUD system. SeeWindshield Replacement
on page 419.
The following Adaptive Cruise Control message
may appear in the HUD:
PEDAL APPLIED ACC OVERRIDE:This
message indicates that you are pressing your
foot on the accelerator pedal and overriding
Adaptive Cruise Control. While you are doing
this, the system will not automatically apply the
brakes. Once you remove your foot from the
accelerator pedal, Adaptive Cruise Control will
return to normal operation and be able to apply
the brakes, if needed.
You may also see an Adaptive Cruise Control
active symbol, alert symbol or vehicle ahead
symbol. SeeAdaptive Cruise Control on page 197
for more information.
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The recirculation mode is cancelled when the
system enters the defog mode. If recirculation is
selected while in the defog mode, it is cancelled
after 10 minutes.
If there is fogging on the side windows, remain in
defog or defrost mode until they clear.
0(Defrost):Press this button to direct most of
the air to the windshield, with some air directed
to the side windows and outboard panel outlets. In
this mode, the system automatically turns off
recirculation and runs the air-conditioning
compressor, unless the outside temperature is at
or below freezing. Recirculation cannot be
selected while in the defrost mode.
This mode can also cause the fan speed and air
temperature to increase.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
The rear window defogger only works when the
ignition is on or during remote start, if
programmed. See “Personal Settings Menu” under
Vehicle Personalization on page 148for additional
information.
=(Rear Window Defogger):Press this button
to turn the rear window defogger on or off. Be
sure to clear as much snow from the rear window
as possible.
The rear window defogger turns off about
10 minutes after the button is pressed. If the
vehicle’s speed is above 30 mph (48 km/h), the
rear defogger stays on continuously. If turned
on again, the defogger only runs for about
ve minutes before turning off. The defogger can
also be turned off by pressing the button again
or by turning off the engine.
The heated outside rearview mirrors also heat to
help clear fog or frost from the surface of the
mirror when the rear window defogger is on. See
Outside Power Heated Mirrors on page 130.
Notice:Do not use a razor blade or sharp
object to clear the inside rear window. Do not
adhere anything to the defogger grid lines
in the rear glass. These actions may damage
the rear defogger. Repairs would not be
covered by your warranty.
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Speedometer and Odometer
Your speedometer lets you see your speed in
both miles per hour (mph) and kilometers per
hour (km/h). See “MPH (km)” underDIC Controls
and Displays on page 258for more information.
The odometer mileage can be checked without the
vehicle running. Your vehicle’s odometer works
together with the driver information center.
You can set a Trip A and a Trip B odometer. See
“Trip Information” underDIC Controls and
Displays on page 258for more information.
If your vehicle ever needs a new odometer
installed, the new one will be set to the correct
mileage total of the old odometer.
Tachometer
This gage indicates
the engine speed
in revolutions
per minute (rpm).
Safety Belt Reminder Light
When the ignition button is pressed to START, a
chime will be provided for several seconds to
remind people to buckle their safety belts. The
driver safety belt light will also be provided and stay
on for several seconds, then it will ash for several
more. You should buckle your seat belt.
This chime and light will
be repeated if the driver
remains unbuckled
and the vehicle
is in motion.
If the driver’s belt is buckled, neither the chime nor
the light will be provided.
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