Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-9
Safety Belts
.............................................1-10
Child Restraints
.......................................1-31
Airbag System
.........................................1-53
Restraint System Check
............................1-70
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-22
Mirrors
....................................................2-36
Object Detection Systems
..........................2-40
OnStar
®System
......................................2-49
Universal Home Remote System
................2-52
Storage Areas
.........................................2-59
Sunroof
..................................................2-61
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-42
Warning Lights, Gages, and Indicators
........3-53
Driver Information Center (DIC)
..................3-70
Audio System(s)
.......................................3-96Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-26
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-12
Headlamp Aiming
.....................................5-47
Bulb Replacement
....................................5-50
Windshield Wiper Blade Replacement
.........5-50
Tires
......................................................5-52
Appearance Care
.....................................5-90
Vehicle Identi cation
.................................5-99
Electrical System
....................................5-100
Capacities and Speci cations
...................5-109
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-16
Vehicle Data Recording and Privacy
...........7-18
Index................................................................ 1
2008 Cadillac DTS Owner ManualM
Press a button to turn on the desired feature. A light on
that button will display to show which feature is on.
There are three temperature settings for each feature.
A column of three lights next to the buttons will
display which setting the feature is in: high, medium or
low. Three lights indicate the highest setting, two
lights for medium and one light for the lowest setting.
When you press a button, the feature will turn on at the
highest setting. Each time you press the button, the
feature will go down one temperature setting.
To turn the feature off, keep pressing the button until
the display lights turn off.
If your vehicle has remote vehicle start and is started
using the remote keyless entry transmitter, the front
heated seats will be turned on to the high setting if it is
cold outside. See “Remote Vehicle Start” under
Remote Keyless Entry (RKE) System Operation on
page 2-5. When the key is inserted into the ignition and
the ignition is turned on, this feature will turn off.
To turn it back on, press the desired button.Memory Seat, Mirrors and Steering
Wheel
Your vehicle may have the memory package.
The controls for this feature are located on the driver’s
door panel, and are used to program and recall
memory settings for the driver’s seat, outside mirror,
and the steering wheel position if the vehicle has
the power tilt wheel and telescopic steering feature.
To save your positions in memory, do the following:
1. Adjust the driver’s seat, including the seatback
recliner and lumbar, both outside mirrors, and
the steering wheel to a comfortable position.
2. Press and hold button 1 until two beeps sound
through the driver’s side front speaker to let you
know that the position has been stored.
1-4
Rear Seats
Heated Seats
Your vehicle may have heated rear seats.
To operate the rear heated seats, the ignition
must be on.
The buttons are located on
the rear doors.
I(Heated Seatback):Press to turn on the heated
seatback.
J(Heated Seat and Seatback):Press to turn on the
heated seat and seatback.
Press a button to turn on the desired feature. A light on
that button will display to show which feature is on.There are three temperature settings for each feature.
A column of three lights next to the buttons will
display which setting the feature is in: high, medium or
low. Three lights indicate the highest setting, two
lights for medium and one light for the lowest setting.
When you press a button, the feature will turn on at the
highest setting. Each time you press the button, the
feature will go down one temperature setting.
To turn the feature off, keep pressing the button until
the display lights turn off.
Rear Seat Pass-Through Door
Your vehicle has a pass-through door that provides
access to the trunk from the rear seats. See “Rear Seat
Pass-Through Door” underTrunk on page 2-12.
1-9
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 when it is
cold outside. SeeHeated and Cooled Seats on page 1-3
for 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
ON/RUN. SeeDual Climate Control System on
page 3-42.
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.
If your vehicle has the remote start feature, the RKE
transmitter functions will have an increased range
of operation. However, the range may be less while the
vehicle is running.There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System Operation on page 2-5for
additional information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button, then
immediately press and hold the transmitter’s remote
start button until the turn signal lights ash or if the
vehicle’s lights are not visible, press and hold the
remote start button for at least four seconds. The
vehicle’s doors will lock. Pressing the remote start
button again after the vehicle has started will turn off
the ignition.
When the vehicle starts, the parking lamps will turn
on and remain on while the vehicle is running.
3. If it is the rst remote start since the vehicle has been
driven, repeat these steps, while the engine is still
running, to extend the engine running time by
10 minutes. Remote start can be extended one time.
After entering the vehicle during a remote start, insert
and turn the key to ON/RUN to drive the vehicle.
2-8
If you activate the alarm by accident, unlock the driver’s
door with your key. You can also turn off the alarm by
using the unlock button on the RKE transmitter system, or
by starting the car with a valid key.
Changes or modi cations made to this system by
other than an authorized service facility could void
authorization to use the theft system.
Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open, lock
the vehicle using the power door lock or the RKE
system and close the door. Wait 30 seconds until the
security lamp goes off.
3. Reach in and unlock the door using the manual lock
and open the door. The horn will sound and the
hazard lights will ash.
You can turn off the alarm by unlocking the driver’s door
with your key, using the unlock button on the RKE
transmitter or by starting the car with a valid key.
If the alarm does not sound when it should, check to see
if the horn works. The horn fuse may be blown. To
replace the fuse, seeFuses and Circuit Breakers on
page 5-101. If the fuse does not need to be replaced, you
may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
theft-deterrent system when leaving your vehicle.
PASS-Key®III+ Electronic
Immobilizer
The PASS-Key III+ 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 harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
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 modi cations to this system by other than
an authorized service facility could void authorization to
use this equipment.
PASS-Key III+ uses a radio frequency transponder in
the key that matches a decoder in the vehicle.
2-20
Ignition Positions
With the ignition key in the ignition, the key can be
turned to four different positions:
In order to shift out of PARK (P), ignition must be in the
ON/RUN or ACC/ACCESSORY and the regular brake
pedal must be applied.
Notice:Using a tool to force the key from the
ignition switch could cause damage or break the
key. Use the correct key and turn the key only with
your hand. Make sure the key is in all the way. If
none of this works, then your vehicle needs service.A (LOCK/OFF):This is the only position in which the
ignition key can be inserted or removed. This position
locks the ignition and transmission and steering column.
It is a theft-deterrent feature.
If the steering wheel is locked, move it from right to left
and turn the key to ACC/ACCESSORY. If none of
this works, then your vehicle needs service.
B (ACC/ACCESSORY):This position lets the radio
and windshield wipers operate while the engine is off.
To use ACC/ACCESSORY, turn the key clockwise.
C (ON/RUN):This position is where the key returns to
after the vehicle is started. This position displays
some of the warning and indicator lights.
The battery could be drained if you leave the key in the
ACC/ACCESSORY or ON/RUN position with the engine
off. You may not be able to start your vehicle if the battery
is allowed to drain for an extended period of time.
D (START):This position starts the engine.
A warning chime will sound and the Driver Information
Center (DIC) will display DRIVER DOOR OPEN
when the driver’s door is opened if the ignition is in
LOCK/OFF, ACC/ACCESSORY and the key is in the
ignition. SeeDIC Warnings and Messages on page 3-75
for more information.
2-23
Mirrors
Automatic Dimming Rearview Mirror
The vehicle has an automatic dimming rearview
mirror with a compass display. The mirror may also
have OnStar
®controls and/or Intellibeam™. For more
information on OnStar, seeOnStar®System on
page 2-49. For more information on Intellibeam™ see
“Intellibeam Intelligent High-Beam Headlamp Control
System” underExterior Lamps on page 3-32.
O(On/Off):If the vehicle has this button, press to
turn the automatic dimming feature on or off.
Automatic Dimming Mirror Operation
Automatic dimming reduces the glare of lights from
behind the vehicle. The dimming feature comes on and
the indicator light illuminates each time the vehicle is
started.
Cleaning the Mirror
Do not spray glass cleaner directly on the mirror. Use a
soft towel dampened with glass.
Compass
Compass Operation
AUTO3/O(Auto Highbeam or On/Off):The
vehicle may have one of these buttons. Press and
hold AUTO
3for approximately three seconds or
press
Oto turn the compass on or off.
When the ignition is turned ON and this feature is on,
the compass displays in the mirror after a few seconds.
Compass Calibration
If the letter C should ever appear in the compass
display window, the compass may need to be calibrated.
If the correct compass direction does not show on the
display, there may be a strong magnetic eld interfering
with the compass, such as a magnetic antenna
mount, magnetic note pad holder or a similar magnetic
item. Remove the interference and calibrate the
compass, if calibrating is needed.
The compass can be placed in calibration mode
manually by pressing and holding AUTO
3orO
depending on the vehicle, until a C is shown in the
compass display.
To calibrate, drive the vehicle in a small circle slowly
until the display reads the correct direction.
2-36
The front display is located on top of the instrument panel
to the right of the driver. The front display will have either
three or six lights to provide distance and system
information. With Adaptive Cruise control (ACC), it will
have three lights along with the ACC lights. Without ACC,
it will have six lights. High-toned beeps from the front
speakers are for objects detected near the front bumper.
The rear display is located near the rear window and
can be seen by looking over your right shoulder.
The rear display uses three color-coded lights to provide
distance and system information. Low-toned beeps
from the rear speakers are for the rear bumper.
How the System Works
UFRPA comes on automatically when the shift
lever is moved out of PARK (P). The system does
not work at a forward or reverse speed greater than
5 mph (8 km/h).
To be detected, objects must be at least 10 inches
(25.4 cm) off the ground and below hood or trunk level.
Objects must also be within 4 feet (1.2 m) in front of
your vehicle and 8 feet (2.5 m) from your rear bumper.
This distance may be less during warmer or humid
weather.
When backing, if objects are detected at the same time
near both the front and rear bumpers, both color-coded
light displays will notify you of objects close to each
bumper. If there are objects detected near both bumpers,
the beeps will only be sounded to notify that objects are
close to the rear bumper. However, if while you are
backing and an object comes within 1 ft (0.3 m) of the
front bumper, and at the same time there is another
object further than 1 ft (0.3 m) from the rear bumper, then
the beeps will only be sounded to notify you of the closer
object that is near the front bumper.
The system can be disabled using the Driver Information
Center (DIC). See “Parking Assist” underDIC Operation
and Displays on page 3-70for more information. Front Parking Assist
Display
Rear Parking Assist
Display
2-41