brake CADILLAC STS 2007 1.G Owner's Manual

Increasing Set Speed While Using Adaptive
Cruise Control
There are two ways to increase the set speed:
Use the accelerator to get to the higher speed.
Press the set button at the end of the lever,
then release the button and the accelerator
pedal. You will now cruise at the higher speed.
Move the Adaptive Cruise Control switch from
on to resume/increase. Hold it there until the
desired set speed is displayed in the HUD,
then release the switch. To increase your set
speed in very small amounts, move the
switch briey to resume/increase. Each time
you do this, your vehicle set speed will
increase by 1 mph (1.6 km/h).
Your vehicle will not reach the set speed until the
system determines there is not a vehicle in
front of you. At that point, your vehicle speed will
increase to the set speed.
Decreasing Set Speed While Using
Adaptive Cruise Control
Press in the set/decrease button on the end of the
lever until you reach the lower speed you want,
then release it.
To slow down in very small amounts, briey press
the set/decrease button. Each time you do this,
your set speed will be 1 mph (1.6 km/h) slower.
Resuming a Set Speed
Suppose you set your Adaptive Cruise Control at
a desired speed and then you apply the brake.
This will disengage the Adaptive Cruise Control.
But you do not need to reset it.
Once you are going about 25 mph (40 km/h) or
more, move the Adaptive Cruise Control
switch briey from on to resume/increase. Adaptive
Cruise Control will be engaged with the previously
chosen set speed.
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Alerting the Driver
The alert symbol will
ash on the HUD and a
warning beep will
sound 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
20 mph (32 km/h).
A temporary condition prohibits Adaptive
Cruise Control from operating. SeeDIC
Warnings and Messages on page 264for more
information.
A malfunction is detected in the system. See
DIC Warnings and Messages on page 264
for more information.
SeeDefensive Driving on page 316.
{CAUTION:
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 316.
204

Approaching and Following a Vehicle
The vehicle ahead
symbol will only appear
on the HUD when a
vehicle ahead is
detected in your path.
If this symbol does not appear, or disappears
briey, Adaptive Cruise Control will not respond to
vehicles you may see ahead.
{CAUTION:
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.
CAUTION: (Continued)
CAUTION: (Continued)
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 will, automatically, slow
your vehicle down when approaching a slower
moving vehicle. It will then adjust your speed to
follow the vehicle in front at the selected follow
distance. Your speed will increase or decrease 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 will come on. It may feel or sound different
than if you were applying the brakes yourself. This
is normal.
205

Stationary or Very Slow-Moving Objects
{CAUTION:
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.
{CAUTION:
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.
206

Low-Speed Deactivation
If your speed falls below 20 mph (32 km/h) while
following a vehicle ahead, Adaptive Cruise Control
will begin to disengage. The driver alert symbol
on the HUD will ash 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 you turn the HUD off when Adaptive Cruise
Control is engaged, it will begin to disengage. A
warning beep will sound and the message RADAR
CRUISE NOT READY will appear on the Driver
Information Center (DIC). SeeDIC Warnings
and Messages on page 264for additional
information. If Adaptive Cruise Control was braking
when the HUD is turned off, the braking will
continue briey.
Passing a Vehicle/Adaptive Cruise
Control Override
If you need 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 223for additional information. Once you
pass the vehicle and remove your foot from the
accelerator pedal, Adaptive Cruise Control will
return to normal operation and be able to apply the
brakes, if needed.
{CAUTION:
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.
207

Curves in the Road
{CAUTION:
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 may operate differently in
a sharp curve. It may reduce your speed if the
curve is too sharp.When following a vehicle and entering a curve,
Adaptive Cruise Control could lose track of
the vehicle in your lane and accelerate your
vehicle. When this happens, the vehicle ahead
symbol will not appear on the HUD.
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Adaptive Cruise Control may detect a vehicle that
is not in your lane and apply the brakes.
Adaptive Cruise Control may, 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.
209

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 will work on hills
and when towing a trailer depends on your
speed, vehicle load, traffic conditions and thesteepness of the hills. It may not detect a vehicle
in your lane while driving on hills. When going
up steep hills, you may want to use the accelerator
pedal to maintain your speed. When going
downhill when towing a trailer, you may want to
brake to keep your 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
To disengage the system, apply the brake pedal
or move the Adaptive Cruise Control switch to
off. Adaptive Cruise Control information will
not appear on the HUD when the system is not
engaged.
Erasing Set Speed Memory
When you turn the Adaptive Cruise Control switch
or the ignition off, the set speed memory is erased.
210

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.
218

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.
225