2007 CADILLAC DTS PROFESSIONAL fuel

Service and Appearance Care
.................. 351
Service
................................................. 353
Fuel
...................................................... 355
Checking Things Under the Hood
......... 362
Headlamp Aiming
................................. 397
Bulb Replacement
................................ 400
Windshield Wiper Blade Replacement
... 400
Tires
..................................................... 402
Appearance Care
.................................. 440
Vehicle Identication
............................. 450
Electrical System
.................................. 451
Capacities and Specications
................ 460Maintenance Schedule
.............................. 461
Maintenance Schedule
.......................... 462
Customer Assistance Information
............. 481
Customer Assistance and Information
... 482
Reporting Safety Defects
...................... 497
Vehicle Data Recording and Privacy
..... 500
Index
.......................................................... 503
2

Remote Vehicle Start
The remote vehicle starting feature allows you to
start the engine from outside of the vehicle. It
also starts up the vehicle’s automatic climate
control system. When the remote start system is
active, the climate control system will heat
and cool the inside of the vehicle according to the
previous settings of the system before turning
the vehicle off. The rear window defogger will be
turned on by the climate control system when
it is cold outside. If the vehicle has heated seats,
they will also turn on. SeeHeated and Cooled
Seats on page 11for additional information.
Cooled seats are not activated during a remote
start. Normal operation of the climate control
system will return after the key is turned to RUN.
SeeDual Climate Control System on page 210.
Laws in some communities may restrict the use of
remote starters. For example, some laws may
require a person using remote start to have
the vehicle in view when doing so. Check local
regulations for any requirements on remote starting
of vehicles.Do not use the remote start feature if your vehicle
is low on fuel. Your vehicle may run out of fuel.
Your RKE transmitter, with the remote start button,
provides an increased range of operation.
However, the range may be less while the vehicle
is running. As a result, you may need to be
closer to your vehicle to turn it off, than you were
to turn it on.
There are other conditions which can affect the
performance of the transmitter, see “Remote
Keyless Entry System Operation” listed previously
for additional information.
/(Remote Start):Press and release the lock
button and then press and hold this button to use
the remote start feature.
100

Engine Coolant Heater
Your vehicle may have an engine coolant heater.
In very cold weather, 0°F (−18°C) or colder,
the engine coolant heater can help. You will get
easier starting and better fuel economy during
engine warm-up. Usually, the coolant heater
should be plugged in a minimum of four hours
prior to starting your vehicle. At temperatures
above 32°F (0°C), use of the coolant heater is not
required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is located on the driver’s
side of the engine, behind the transaxle
dipstick/uid ll location and next to the
engine.
3. Plug it into a normal, grounded 110-volt AC
outlet.
{CAUTION:
Plugging the cord into an ungrounded
outlet could cause an electrical shock.
Also, the wrong kind of extension cord
could overheat and cause a re. You could
be seriously injured. Plug the cord into a
properly grounded three-prong 110-volt AC
outlet. If the cord will not reach, use a
heavy-duty three-prong extension cord
rated for at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it
away from moving engine parts. If you do not, it
could be damaged.
How long should you keep the coolant heater
plugged in? The answer depends on the outside
temperature, the kind of oil you have, and some
other things. Instead of trying to list everything here,
we ask that you contact your dealer in the area
where you will be parking your vehicle. The
dealer/retailer can give you the best advice for that
particular area.
121

DRIVE (D):This position is for normal driving. It
provides the best fuel economy for your vehicle. If
you need more power for passing, and you are:
Going less than 35 mph (55 km/h), push the
accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push
the accelerator all the way down.
The transaxle will shift down to the next gear
and have more power.
Downshifting the transaxle in slippery road
conditions could result in skidding, see Skidding
underLoss of Control on page 317.
Notice:Driving your vehicle if you notice that it
is moving slowly or not shifting gears as you
increase speed may damage the transaxle. Have
your vehicle serviced right away. You can drive
in SECOND (2) when you are driving less than
35 mph (55 km/h) and DRIVE (D) for higher
speeds until then.DRIVE (D) can be used for towing. You may want
to shift the transaxle to THIRD (3) or, if necessary,
to a lower gear if the transaxle shifts too often under
heavy loads and/or hilly conditions.
SeeTowing a Trailer on page 342for more
information.
THIRD (3):This position is also used for normal
driving. However, it reduces vehicle speed
more than DRIVE (D) without using your brakes.
You might choose THIRD (3) instead of DRIVE (D)
when driving on hilly, winding roads, when
towing a trailer, so there is less shifting between
gears and when going down a steep hill.
SECOND (2):This position reduces vehicle speed
more than THIRD (3) without using your brakes.
You can use SECOND (2) on hills. It can help
control your speed as you go down steep mountain
roads, but then you would also want to use your
brakes off and on.
Notice:Do not shift into SECOND (2) unless
you are going slower than 65 mph (105 km/h), or
you can damage your engine and/or transaxle.
124

Warning Lights, Gages, and Indicators..... 222
Instrument Panel Cluster........................... 223
Speedometer and Odometer...................... 224
Tachometer............................................... 224
Safety Belt Reminder Light........................ 225
Passenger Safety Belt Reminder Light....... 225
Airbag Readiness Light............................. 226
Passenger Airbag Status Indicator............. 227
Charging System Light.............................. 229
Brake System Warning Light..................... 229
Anti-Lock Brake System Warning Light...... 230
Low Tire Pressure Warning Light.............. 231
Traction Control System (TCS)
Warning Light........................................ 232
StabiliTrak
®Indicator Light......................... 232
Engine Coolant Temperature
Warning Light........................................ 233
Engine Coolant Temperature Gage............ 233
Malfunction Indicator Lamp........................ 234
Oil Pressure Light..................................... 237
Security Light............................................ 237
Fog Lamp Light......................................... 238Lights On Reminder.................................. 238
Cruise Control Light.................................. 238
Highbeam On Light................................... 238
Fuel Gage................................................. 239
Driver Information Center (DIC).................. 240
DIC Controls and Displays........................ 240
DIC Warnings and Messages.................... 246
DIC Vehicle Customization........................ 259
Audio System(s)......................................... 268
Setting the Time........................................ 269
Radio with CD (MP3)................................ 273
Using an MP3........................................... 287
XM Radio Messages................................. 294
Navigation/Radio System........................... 296
Theft-Deterrent Feature............................. 296
Audio Steering Wheel Controls.................. 296
Radio Reception........................................ 298
Care of Your CDs..................................... 299
Care of the CD Player.............................. 299
Backglass Antenna.................................... 300
XM™ Satellite Radio Antenna System....... 300
Section 3 Instrument Panel
160

Instrument Panel Cluster
The instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will
know how fast you are going, how much fuel you are using and many of the other things you will need
to know to drive safely and economically.
United States version shown, Canada similar
223

Speedometer and Odometer
The speedometer lets you see your speed
in both miles per hour (mph) and kilometers
per hour (km/h). See “MPH (km)” underDIC
Controls and Displays on page 240for more
information.
The odometer mileage can be checked without
the vehicle running. Your vehicle’s odometer
works together with the driver information center.
You can set a Trip A and a Trip B odometer.
See “Trip Fuel” underDIC Controls and Displays
on page 240for more information.
If your vehicle ever needs a new odometer
installed, the new one will be set to the correct
mileage total of the old odometer.
Tachometer
This gage indicates
the engine speed in
revolutions per
minute (rpm).
224

Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is
required. Malfunctions often will be indicated by
the system before any problem is apparent. This
may prevent more serious damage to your vehicle.
This system is also designed to assist your service
technician in correctly diagnosing any malfunction.Notice:If you keep driving your vehicle with
this light on, after awhile, the emission controls
might not work as well, your vehicle’s fuel
economy might not be as good, and the engine
might not run as smoothly. This could lead
to costly repairs that might not be covered
by your warranty.
Notice:Modications made to the engine,
transaxle, exhaust, intake, or fuel system of
your vehicle or the replacement of the original
tires with other than those of the same Tire
Performance Criteria (TPC) can affect your
vehicle’s emission controls and may cause
this light to come on. Modications to these
systems could lead to costly repairs not
covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 353.
234