2007 CADILLAC DTS PROFESSIONAL Owners Manual

Setting Cruise Control
{CAUTION:
If you leave your cruise control 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 cruise control
switch off until you want to use cruise
control.
The cruise control
buttons are located
on left side of the
steering wheel.
I(On):This position turns on the system.
+ RES (Resume/Accelerate):Press this button
to make the vehicle accelerate or resume to
a previously set speed.
SET– (Set):Press this button to set the speed.
[(Cancel):Press this button to cancel cruise
control.
Cruise control will not work if the parking brake is
set, or if the master cylinder brake uid level is low.
If the brakes are applied, the cruise control
shuts off.
The cruise light on the instrument panel cluster
comes on after the cruise control has been set to
the desired speed.
1. Press the cruise control button.
2. Get up to the desired speed.
3. Press the SET– button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
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Resuming a Set Speed
Suppose you set the cruise control at a desired
speed and then you apply the brake. This shuts off
the cruise control. But you do not need to reset it.
Once the vehicle is traveling approximately
25 mph (40 km/h) or more, you can press the
+RES (resume/accelerate) button to return to
your desired preset speed. The cruise light
displays again.
The vehicle returns to and stays at your preset
speed. If you press and hold the +RES button,
the vehicle speed increases until you release the
button or apply the brake. Do not hold in the
+RES button, if you do not want the vehicle
speed to increase.
Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed:
Use the accelerator pedal to get to the higher
speed. Press the SET– button, then release
the button and the accelerator pedal. The
vehicle now cruises at the higher speed.
Press the +RES button. Hold it there until you
get up to the desired speed, and then release
the button. To increase your speed in very
small amounts, briey press the +RES button
and then release it. Each time you do this,
the vehicle accelerates approximately
1 mph (1.6 km/h).
The accelerate feature only works after you have
set the cruise control speed by pressing the
SET– button.
Reducing Speed While Using Cruise
Control
There are two ways to reduce your speed while
using cruise control:
Press the SET– button until you reach the
lower desired speed, then release it.
To slow down in very small amounts, push the
SET– button briey. Each time you do this,
the vehicle slows down approximately
1 mph (1.6 km/h).
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Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase your speed.
When you take your foot off the pedal, the vehicle
slows down to your previous cruise control speed.
Using Cruise Control on Hills
How well your cruise control works on hills depends
upon the vehicle speed, load, and the steepness of
the hills. When going up steep hills, you might have
to step on the accelerator pedal to maintain the
vehicle’s speed. When going downhill, you might
have to brake or shift to a lower gear to keep the
vehicle’s speed down. Applying the brake or shifting
into a lower gear ends cruise control. If you need to
apply the brake or shift to a lower gear due to the
grade of the downhill slope, you might not want to
attempt to use the cruise control feature.
Ending Cruise Control
To turn off the cruise control, step lightly on
the brake pedal, or press the cancel button on
the steering wheel.
Erasing Speed Memory
When you turn off the cruise control or the
ignition, your cruise control set speed memory
is erased.
Adaptive Cruise Control
If your vehicle has this feature, be sure to read
this entire section before using it.
The system operates on a radio frequency subject
to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
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This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Changes or modications to this system by other
than an authorized service facility could void
authorization to use this equipment.
Adaptive Cruise Control is an enhancement
to traditional cruise control. It allows you to
keep cruise control engaged in moderate traffic
conditions without having to constantly reset your
cruise control. Adaptive Cruise Control uses
radar to detect a vehicle directly ahead in your
path, within a distance of 330 ft (100 m), and
operates at speeds above 25 mph (40 km/h).
When it is engaged by the driver, the system
can apply limited braking or acceleration of the
vehicle automatically to maintain a selected follow
distance to the vehicle ahead. Braking is limited
to 0.25 g’s (2.45 m/sec2)of deceleration, which iscomparable to moderate application of the
vehicle’s brakes. To disengage Adaptive Cruise
Control, apply the brake. If no vehicle is in
your path, the vehicle will react like traditional
cruise control.
{CAUTION:
Adaptive Cruise Control will not apply
hard braking or bring the vehicle to a
complete stop. It will not respond to
stopped vehicles, pedestrians or animals.
When you are approaching a vehicle or
object, Adaptive Cruise Control may not
have time to slow your vehicle enough to
avoid a collision. Your complete attention
is always required while driving and you
should be ready to take action and apply
the brakes. For more information, see
Defensive Driving on page 302.
180

{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.
CAUTION: (Continued)
CAUTION: (Continued)

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.
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.
181

The Adaptive Cruise
controls are located on
the steering wheel.
The cruise control buttons are located on left side
of the steering wheel.
](On):This position turns on the system.
+ Resume (Resume/Accelerate):Press 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.
+GAP (Increase Following Distance):Press
this button to increase the distance between your
vehicle and other vehicles.
−GAP (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.
182

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.
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 246.
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 309andStabiliTrak
®System on
page 311. When road conditions allow you to
safely use it again, you may turn the Adaptive
Cruise Control back on.
183

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.
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 turn off 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.
184