2007 CADILLAC DTS PROFESSIONAL head light

Fog Lamp Light
The fog lamp light will
come on when the fog
lamps are in use.
The light will go out when the fog lamps are
turned off. SeeFog Lamps on page 198for more
information.
Lights On Reminder
This light comes on
whenever the parking
lamps are on.
SeeExterior Lamps on page 193for more
information.
Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 176and
Adaptive Cruise Control on page 179for more
information.
Highbeam On Light
This light comes on
when the high-beam
headlamps are in use.
SeeHeadlamp High/Low-Beam Changer on
page 167for more information.
238

DIC Warnings and Messages
These messages appear if there is a problem
detected in one of your vehicle’s systems.
You must acknowledge a message to clear it from
the screen for further use. To clear a message,
press the set/reset button.
Be sure to take any message that appears on
the screen seriously and remember that clearing
the message will only make the message
disappear, not the problem.
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic
headlamps are turned off. SeeExterior Lamps
on page 193for more information.
AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic
headlamps are turned on. SeeExterior Lamps
on page 193for more information.
BATTERY SAVER ACTIVE
This message displays when the system detects
that the battery voltage is dropping beyond a
reasonable level. The battery saver system starts
reducing certain features of the vehicle that
you may be able to notice. At the point that the
features are disabled, this message is displayed.
It means that the vehicle is trying to save the
charge in the battery.
Turn off all unnecessary accessories to allow the
battery to recharge.
The normal battery voltage range is
11.5 to 15.5 volts. You can monitor battery
voltage on the Driver Information Center (DIC)
by pressing the trip/fuel button until BATTERY
VOLTAGE is displayed.
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Remember: ABS does not change the time you
need to get your foot up to the brake pedal
or always decrease stopping distance. If you get
too close to the vehicle in front of you, you will not
have time to apply the brakes if that vehicle
suddenly slows or stops. Always leave enough
room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down rmly and let anti-lock work for you.
You might hear the anti-lock pump or motor
operate, and feel the brake pedal pulsate, but this
is normal.
Braking in Emergencies
With ABS, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
Traction Control System (TCS)
Your vehicle has a traction control system that limits
wheel spin. This is especially useful in slippery road
conditions. The system operates only if it senses
that the front wheels are spinning too much or
beginning to lose traction. When this happens, the
system works the front brakes and reduces engine
power (by closing the throttle and managing engine
spark) to limit wheel spin.
The traction control system and StabiliTrak
®
warning light will ash when the traction control
system is limiting wheel spin. SeeTraction Control
System (TCS) Warning Light on page 232and
StabiliTrak
®Indicator Light on page 232for more
information. You may feel or hear the system
working, but this is normal.
If your vehicle is in cruise control when the
traction control system begins to limit wheel spin,
the cruise control will automatically disengage.
When road conditions allow you to safely
use it again, you may re-engage the cruise control.
SeeCruise Control on page 176orAdaptive
Cruise Control on page 179for more information.
309

Off-Road Recovery
You may nd that your vehicle’s right wheels have
dropped off the edge of a road onto the shoulder
while you are driving.
If the level of the shoulder is only slightly below
the pavement, recovery should be fairly easy.
Ease off the accelerator and then, if there
is nothing in the way, steer so that your vehicle
straddles the edge of the pavement.You can turn the steering wheel up to one-quarter
turn until the right front tire contacts the pavement
edge. Then turn the steering wheel to go
straight down the roadway.
Passing
The driver of a vehicle about to pass another on a
two-lane highway waits for just the right moment,
accelerates, moves around the vehicle ahead, then
goes back into the right lane again. A simple
maneuver?
Not necessarily! Passing another vehicle on a
two-lane highway is a potentially dangerous move,
since the passing vehicle occupies the same lane
as oncoming traffic for several seconds. A
miscalculation, an error in judgment, or a brief
surrender to frustration or anger can suddenly put
the passing driver face to face with the worst of all
traffic accidents — the head-on collision.
315

If you have StabiliTrak®, the system may be
active. SeeStabiliTrak®System on page 311.
Of course, traction is reduced when water, snow,
ice, gravel, or other material is on the road.
For safety, you will want to slow down and adjust
your driving to these conditions. It is important
to slow down on slippery surfaces because
stopping distance will be longer and vehicle control
more limited.
While driving on a surface with reduced traction, try
your best to avoid sudden steering, acceleration, or
braking, including reducing vehicle speed by
shifting to a lower gear. Any sudden changes could
cause the tires to slide. You may not realize the
surface is slippery until your vehicle is skidding.
Learn to recognize warning clues — such as
enough water, ice, or packed snow on the road to
make a mirrored surface — and slow down when
you have any doubt.
Remember: Any Anti-Lock Brake System (ABS)
helps avoid only the braking skid.Driving at Night
Night driving is more dangerous than day driving.
One reason is that some drivers are likely to
be impaired — by alcohol or drugs, with night
vision problems, or by fatigue.
Here are some tips on night driving.
Drive defensively.
Do not drink and drive.
Adjust the inside rearview mirror to reduce the
glare from headlamps behind you.
Since you cannot see as well, slow down and
keep more space between you and other
vehicles.
Slow down, especially on higher speed roads.
Your vehicle’s headlamps can light up only so
much road ahead.
In remote areas, watch for animals.
If you are tired, pull off the road in a safe
place and rest.
318

No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver might require at least twice as
much light to see the same thing at night as a
20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the
day in bright sunshine you are wise to wear
sunglasses. Your eyes will have less trouble
adjusting to night. But if you are driving, do not
wear sunglasses at night. They might cut down on
glare from headlamps, but they also make a lot
of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.
319

Service........................................................ 353
Accessories and Modications................... 353
California Proposition 65 Warning.............. 354
Doing Your Own Service Work.................. 354
Adding Equipment to the Outside of
Your Vehicle.......................................... 355
Fuel............................................................. 355
Gasoline Octane........................................ 356
Gasoline Specications.............................. 356
California Fuel........................................... 356
Additives................................................... 357
Fuels in Foreign Countries........................ 358
Filling the Tank......................................... 358
Filling a Portable Fuel Container............... 361
Checking Things Under the Hood.............. 362
Hood Release........................................... 363
Engine Compartment Overview.................. 364
Engine Oil................................................. 365
Engine Oil Life System.............................. 368
Engine Air Cleaner/Filter............................ 370
Automatic Transaxle Fluid......................... 372
Engine Coolant.......................................... 374
Coolant Surge Tank Pressure Cap............ 377
Engine Overheating................................... 377Overheated Engine Protection
Operating Mode..................................... 379
Cooling System......................................... 380
Power Steering Fluid................................. 385
Windshield Washer Fluid........................... 386
Brakes...................................................... 387
Battery...................................................... 390
Jump Starting............................................ 392
Headlamp Aiming........................................ 397
Bulb Replacement....................................... 400
High Intensity Discharge (HID) Lighting..... 400
Windshield Wiper Blade Replacement....... 400
Tires............................................................ 402
Tire Sidewall Labeling............................... 403
Tire Terminology and Denitions............... 408
Ination - Tire Pressure............................. 411
High-Speed Operation............................... 413
Tire Pressure Monitor System................... 414
Tire Inspection and Rotation...................... 418
When It Is Time for New Tires.................. 419
Buying New Tires...................................... 420
Different Size Tires and Wheels................ 422
Uniform Tire Quality Grading..................... 422
Section 5 Service and Appearance Care
351

3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
5. Return the remote positive (+) terminal cover
to its original position.
Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim has been preset at the factory
and should need no further adjustment.
However, if the vehicle is damaged in an accident,
the headlamp aim may be affected and adjustment
may be necessary.
If oncoming vehicles ash their high beams at
you, this may also mean the vertical aim needs to
be adjusted.
It is recommended that the vehicle is taken to your
dealer/retailer for service if the headlamps need
to be re-aimed. It is possible however, to
re-aim the headlamps as described.Notice:To make sure your headlamps are
aimed properly, read all the instructions before
beginning. Failure to follow these instructions
could cause damage to headlamp parts.
The vehicle should:
Be placed so the headlamps are 25 ft. (7.6 m)
from a light colored wall.
Have all four tires on a level surface which is
level all the way to the wall.
Be placed so it is perpendicular to the wall.
Not have any snow, ice, or mud on it.
Be fully assembled and all other work stopped
while headlamp aiming is being performed.
Be normally loaded with a full tank of fuel and
one person or 160 lbs (75 kg) sitting on the
driver’s seat.
Have all tires properly inated.
Have the spare tire is in its original location in
the vehicle.
397