2006 CADILLAC DTS PROFESSIONAL Owners Manual

{CAUTION:
On winding roads, Adaptive Cruise
Control may not detect a vehicle ahead.
You could crash into a vehicle ahead of
you. Do not use Adaptive Cruise Control
on winding roads.
Adaptive Cruise Control may not have time
to slow your vehicle enough to avoid a
crash when you are driving in conditions
where vehicles may suddenly slow or stop
ahead of you, enter your lane, or cross your
vehicle’s path. If you are driving in these
conditions, do not use Adaptive Cruise
Control. The warning beep and alert symbol
may indicate that you are driving in
conditions where Adaptive Cruise Control
should not be used. See “Alerting the
Driver” in this section.
On slippery roads, fast changes in tire
traction can cause needless wheel
spinning, and you could lose control. Do
not use cruise control on slippery roads.
CAUTION: (Continued)
CAUTION: (Continued)

When weather limits visibility, such as
when in fog, rain, or snow conditions,
Adaptive Cruise Control performance is
limited. There may not be enough distance
to adapt to the changing traffic conditions.
Do not use cruise control when visibility
is low.
The Adaptive Cruise
controls are located on the
steering wheel.
The cruise control buttons are located on left side of the
steering wheel.
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](On):This position activates the system.
+ Resume (Resume/Accelerate):Push this button to
make the vehicle resume to a previously set speed
or to increase the set speed when Adaptive Cruise
Control is already active.
−Set:Press this button to set the speed or to
decrease the set speed when Adaptive Cruise
Control is already active.
[(Cancel):Press this button to cancel adaptive
cruise control.
+ (Increase Following Distance):Press this button to
increase the distance between your vehicle and other
vehicles.
−(Decrease Following Distance):Press this button
to decrease the distance between your vehicle and
other vehicles.
Adaptive cruise control will not work if the master
cylinder brake uid level is low.
Engaging Adaptive Cruise Control With
the Set Button
{CAUTION:
If you leave your Adaptive Cruise Control
switch on when you are not using cruise, you
might hit a button and go into cruise when you
do not want to. You could be startled and even
lose control. Keep the Adaptive Cruise Control
switch off until you want to use cruise control.
The set speed is selected by the driver. This is the
speed you will travel if there is no vehicle detected in
your path.
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To set Adaptive Cruise Control, do the following:
1. Press the
](On) button.
2. Get up to the speed you want.
3. Press in the−SET button and release it.
4. Take your foot off the accelerator pedal.
Once Adaptive Cruise Control is set, it may immediately
apply the brakes if it detects a vehicle ahead is too
close or moving slower than your vehicle.
The on symbol is located on the display at the top of
the instrument panel to the right of the driver. When
the on symbol is lit on the display, it indicates that
Adaptive Cruise Control is active.
A message on the DIC will also display when Adaptive
Cruise Control is set. SeeDIC Warnings and
Messages on page 3-76.
Keep in mind speed limits, surrounding traffic speeds,
and weather conditions when adjusting your set speed.
If your vehicle is in Adaptive Cruise Control when the
traction control system begins to limit wheel spin, the
Adaptive Cruise Control will automatically disengage.
SeeTraction Control System (TCS) on page 4-9and
StabiliTrak
®System on page 4-10. When road conditions
allow you to safely use it again, you may turn the
Adaptive Cruise Control back on.
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 and then release the
button and the accelerator pedal. You will now
cruise at the higher speed.
Press the RES button. Hold it there until the desired
set speed is displayed on the Driver Information
Center (DIC), then release the switch. To increase
your set speed in very small amounts, move the
switch briey to RES. Each time you do this,
your vehicle set speed will increase by
1 mph (1 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.
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Decreasing Set Speed While Using
Adaptive Cruise Control
Press the SET button until you reach the lower speed
you want, then release it.
To slow down in very small amounts, briey press the
SET button. Each time you do this, your set speed
will decrease by 1 mph (1 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,
press the RES button. Adaptive Cruise Control will
be engaged with the previously chosen set speed.
Selecting the Follow Distance (GAP)
When the system detects a slower moving vehicle, it will
adjust your vehicle’s speed and maintain the follow
distance (gap) you select.Use the plus and minus buttons on the steering wheel
to adjust the follow distance.
Press the plus button to increase the distance or the
minus button to decrease the distance. The rst button
press will show you the current follow distance
setting on the DIC. Your current follow distance setting
will be maintained until you change it.
There are six follow distances to choose from. The
follow distance selection ranges from near to far
(one second to two seconds follow time). The distance
maintained for a selected follow distance will vary
based on vehicle speed. The faster the vehicle speed
the further back your vehicle will follow. Consider
traffic and weather conditions when selecting the follow
distance. The range of selectable distances may not
be appropriate for all drivers and driving conditions.
If you prefer to travel at a follow distance farther than
Adaptive Cruise Control allows, disengage the
system and drive manually.
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Alerting the Driver
The Adaptive Cruise
Control alert symbol is
located on the display at
the top of the instrument
panel to the right of
the driver.
The alert symbol will ash and a warning beep will
sound when driver action may be required. If Adaptive
Cruise Control is engaged, the alert symbol will
ash 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 3-76for more information.
A malfunction is detected in the system. SeeDIC
Warnings and Messages on page 3-76for more
information.
SeeDefensive Driving on page 4-2.
{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. SeeDefensive Driving on
page 4-2.
Approaching and Following a Vehicle
The Vehicle Ahead symbol is located on the top of the
instrument panel to the right of the driver.
The Vehicle Ahead symbol will only appear when a
vehicle is detected in your path.
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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. 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. Braking may
feel or sound different than if you were applying
the brakes yourself. This is normal.
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.
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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 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.
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 message will appear on the DIC. SeeDIC Warnings
and Messages on page 3-76. 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.
{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.
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.
3-27

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.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.
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