service CADILLAC DTS PROFESSIONAL 2007 1.G Owner's Manual

Forward Collision Alert (FCA)
System
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.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.
The Forward Collision Alert (FCA) system
provides an audible and visual alert if you
approach a vehicle too quickly that is directly
ahead. FCA also provides a visual alert with no
audible alert if you are following another vehicle
much too closely. The FCA alert symbol is located
on top of the instrument panel to the right of the
driver. FCA uses the Adaptive Cruise Control radar
to detect a vehicle directly ahead, in your path,
within a distance of 328 ft (100 m) and operates
at speeds above 20 mph (32 km/h).
168

Detecting the Vehicle Ahead
The vehicle ahead symbol, located next to the
FCA symbol, will only appear when a vehicle
ahead of you is detected in your path. If this
symbol does not appear, or disappears briey,
FCA will not respond to vehicles you may
see ahead. The symbol may disappear on curves,
highway exit ramps, or hills. Also, when another
vehicle enters the same lane as you, the FCA
system will not detect the vehicle until it is
completely in your driving lane.
{CAUTION:
When the Adaptive Cruise Control radar is
blocked by snow, ice, or dirt, it may not
detect a vehicle ahead. FCA may not
help you avoid a collision under these
conditions. Do not use FCA when the
radar is blocked by snow, ice, or dirt.
Keep your radar clean. See “Cleaning
the System” underAdaptive Cruise
Control on page 179.
{CAUTION:
FCA may not detect and warn soon enough
to stationary or slow-moving vehicles or
other objects ahead of you. You could
crash into an object ahead of you. Do not
rely on FCA when approaching stationary
or slow-moving vehicles or other objects.
Unnecessary Alerts
FCA may occasionally provide alerts that you
consider unnecessary. It could respond to a turning
vehicle ahead of you, guard rails, signs, and other
stationary objects. This is normal operation, your
vehicle does not need service.
Other Messages
There are three messages that may appear
on the Driver Information Center (DIC). They are
CLEAN RADAR, RADAR CRUISE NOT READY
and SERVICE RADAR CRUISE. SeeDIC
Warnings and Messages on page 246.
171

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

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.
190

Using Adaptive Cruise Control on Hills
and When Towing a Trailer
How well Adaptive Cruise Control will work on hills
and when towing a trailer depends on your vehicle’s
speed, vehicle load, traffic conditions and the
steepness 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 vehicle’s speed. When going
downhill, especially 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,
especially when towing a trailer.
Disengaging Adaptive Cruise Control
To turn off the system, apply the brake pedal,
press the cancel button, or press the Adaptive
Cruise Control button.
Erasing Set Speed Memory
When you press the Adaptive Cruise Control
button or turn the ignition off, the set speed
memory is erased.
Other Messages
There are three additional 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. SeeDIC Warnings and Messages
on page 246for more information.
Cleaning the System
The radar can become blocked by snow, ice, or
dirt. If so, you may need to turn off the engine and
clean the lens. Remember, do not use Adaptive
Cruise Control in icy conditions, or when visibility
is low, such as in fog, rain or snow.
The emblem/lens is located in the center of
the grille.
To clean the emblem/lens, wipe the surface with a
soft cloth. After cleaning the emblem/lens, try to
engage the Adaptive Cruise Control. If you
are unable to do so, see your dealer.
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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, the heated seats
may not get as warm as they usually do and the
climate control fan may cut back to a lower speed.
For more battery saving information, see “Battery
Saver Active Message” underDIC Warnings and
Messages on page 246.
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.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 246.
201

Airbag Readiness Light
There is an airbag readiness light on the instrument
panel, which shows the airbag symbol. The system
checks the airbag’s electrical system for
malfunctions. The light tells you if there is an
electrical problem. The system check includes the
airbag sensors, the airbag modules, the wiring and
the diagnostic module. For more information on the
airbag system, seeAirbag System on page 70.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds.
Then the light should
go out. This means
the system is ready.
If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a
few seconds when you turn the vehicle on. If the
light does not come on then, have it xed so it
will be ready to warn you if there is a problem.
If there is a problem with the airbag system in
your vehicle, the SERVICE AIR BAG message will
appear on the DIC display. SeeDIC Warnings
and Messages on page 246andSafety Belt
Pretensioners on page 41for more information.
226

{CAUTION:
Even though the passenger sensing
system is designed to turn off the
passenger’s frontal airbag and
seat-mounted side impact airbag if the
system detects a rear-facing child restraint,
no system is fail-safe, and no one can
guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend that
rear-facing child restraints be secured in
the rear seat, even if the airbag is off.
If the word OFF or the off symbol is lit on the airbag
status indicator, it means that the passenger
sensing system has turned off the right front
passenger’s frontal airbag and seat-mounted side
impact airbag. SeePassenger Sensing System on
page 81for more on this, including important safety
information.If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together,
it means that something may be wrong
with the airbag system. If this ever
happens, have the vehicle serviced
promptly, because an adult-size person
sitting in the right front passenger seat
may not have the protection of the
airbags. SeeAirbag Readiness Light
on page 226.
228

Charging System Light
When you turn the
engine on, this light
will come on briey to
show that the generator
and battery charging
systems are working
properly.
If this light stays on, your vehicle needs service.
You should take your vehicle to the dealer/retailer
at once. To save the battery until you get there,
turn off all accessories. SeeDIC Controls and
Displays on page 240for more information.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided
into two parts. If one part isn’t working, the
other part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on, there is a brake
problem. Have your brake system inspected
right away.
This light should come on briey when you turn
the engine on. If it does not come on then, have it
xed so it will be ready to warn you if there is a
problem.
United StatesCanada
229

When the ignition is on, the brake system warning
light will also come on when you set your parking
brake. The light will stay on if your parking brake
does not release fully. If it stays on after your
parking brake is fully released, it means you
have a brake problem.
If the light comes on while you are driving, pull
off the road and stop carefully. You may notice that
the pedal is harder to push, or the pedal may go
closer to the oor. It may take longer to stop.
If the light is still on, have the vehicle towed for
service. SeeTowing Your Vehicle on page 340.
{CAUTION:
Your brake system may not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Anti-Lock Brake System Warning
Light
With the anti-lock brake
system, the light will
come on when your
engine is started
and may stay on for
several seconds.
That is normal.
If the ABS warning light comes on and stays on,
there may be a problem with the antilock portion
of the brake system. If the red BRAKE light is
not on, you still have brakes, but you do not have
antilock brakes. SeeBrake System Warning
Light on page 229.
If the light stays on, turn the ignition to OFF or
ACCESSORY. If the light comes on when you are
driving, stop as soon as possible and turn the
ignition off. Then start the engine again to reset
the system. If the light still stays on, or comes on
again while you are driving, your vehicle needs
service. If the regular brake system warning light
is not on, you still have brakes, but you do not
have anti-lock brakes.
230