service CADILLAC DTS 2008 1.G Owners Manual

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 Identication
.................................5-99
Electrical System
....................................5-100
Capacities and Specications
...................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

A second seating, mirror, and steering wheel position
can be programmed by repeating the above steps
and pressing button 2 for a second driver.
To recall your memory positions, the vehicle must be in
PARK (P). Press and release either button 1 or
button 2 corresponding to the desired driving position.
The seat, outside mirrors, and steering wheel will move
to the position previously stored for the identied
driver. You will hear a single beep.
If you use the remote keyless entry transmitter to enter
your vehicle and the remote recall memory feature
is on, automatic seat and mirror movement will occur.
See “MEMORY SEAT RECALL” underDIC Vehicle
Customization on page 3-87for more information.
To stop recall movement of the memory feature at any
time, press one of the power seat controls, memory
buttons, power tilt wheel control, or power mirror
buttons.
If something has blocked the driver’s seat and/or the
steering column while recalling a memory position, the
driver’s seat and/or the steering column recall may
stop. If this happens remove the obstruction, then press
the appropriate control for the area that is not recalling
for two seconds. Try recalling the memory position again
by pressing the appropriate memory button. If the
memory position is still not recalling, see your dealer for
service.Easy Exit Recall
The control for this feature is located on the driver’s
door panel between buttons 1 and 2.
With the vehicle in PARK (P), the exit position can be
recalled by pressing the exit button. You will hear
a single beep. The driver’s seat will move back, and if
the vehicle has the power tilt wheel and telescopic
steering feature, the power telescopic steering column
will move up and forward.
If the easy exit seat feature is on in the DIC, automatic
seat and power telescopic steering column movement
will occur when the key is removed from the ignition.
See “EASY EXIT RECALL” underDIC Vehicle
Customization on page 3-87for more information.
Further programming for automatic seat and steering
wheel movement can be done using the Driver
Information Center (DIC). You can select or not select
the following:
The easy exit recall feature
The memory seat recall feature
For programming information, seeDIC Vehicle
Customization on page 3-87.
1-5

In many crashes severe enough to inate the airbag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger airbag.
Airbags are designed to inate only once. After an
airbag inates, you will need some new parts for
the airbag system. If you do not get them, the airbag
system will not be there to help protect you in
another crash. A new system will include airbag
modules and possibly other parts. The service
manual for your vehicle covers the need to replace
other parts.
The vehicle has a crash sensing and diagnostic
module which records information after a crash.
SeeVehicle Data Recording and Privacy on
page 7-18andEvent Data Recorders on page 7-18.
Let only qualied technicians work on the airbag
systems. Improper service can mean that an
airbag system will not work properly. See your
dealer/retailer for service.
Passenger Sensing System
Your vehicle has a passenger sensing system for the
right front passenger’s position. The passenger
airbag status indicator will be visible on the overhead
console when you start your vehicle.
The words ON and OFF, or the symbol for on and off,
will be visible during the system check. If you are
using remote start to start your vehicle from a distance,
if equipped, you may not see the system check.
When the system check is complete, either the word
ON or the word OFF, or the symbol for on or the symbol
for off, will be visible. SeePassenger Airbag Status
Indicator on page 3-58.
The passenger sensing system will turn off the right
front passenger’s frontal airbag and seat-mounted side
impact airbag under certain conditions. The driver’s
airbags are not part of the passenger sensing system.United States
Canada
1-63

{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on, 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’s seat may not have the protection
of the airbag(s). SeeAirbag Readiness Light
on page 3-57for more on this, including
important safety information.A thick layer of additional material, such as a blanket or
cushion, or aftermarket equipment such as seat
covers, seat heaters, and seat massagers can affect
how well the passenger sensing system operates.
We recommend that you not use seat covers or other
aftermarket equipment other than any that GM has
approved for your specic vehicle. SeeAdding
Equipment to Your Airbag-Equipped Vehicle on
page 1-69for more information about modications that
can affect how the system operates.
{CAUTION:
Stowing of articles under the passenger seat
or between the passenger seat cushion and
seatback may interfere with the proper
operation of the passenger sensing system.
1-67

Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. Your dealer/retailer and the service
manual have information about servicing your vehicle
and the airbag system. To purchase a service manual,
seeService Publications Ordering Information on
page 7-17.
{CAUTION:
For up to 10 seconds after the ignition is
turned off and the battery is disconnected, an
airbag can still inate during improper service.
You can be injured if you are close to an
airbag when it inates. Avoid yellow
connectors. They are probably part of the
airbag system. Be sure to follow proper
service procedures, and make sure the person
performing work for you is qualied to do so.
1-68

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to or change
about the vehicle that could keep the airbags
from working properly?
A:Yes. If you add things that change your vehicle’s
frame, bumper system, height, front end or side
sheet metal, they may keep the airbag system from
working properly. Changing or moving any parts
of the front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel, instrument
panel, roof-rail airbag modules, ceiling headliner
or pillar garnish trim, overhead console, front
sensors, side impact sensors, or airbag wiring can
affect the operation of the airbag system.
In addition, your vehicle has a passenger sensing
system for the right front passenger’s position, which
includes sensors that are part of the passenger’s
seat. The passenger sensing system may not
operate properly if the original seat trim is replaced
with non-GM covers, upholstery or trim, or with GM
covers, upholstery or trim designed for a different
vehicle. Any object, such as an aftermarket seat
heater or a comfort enhancing pad or device,
installed under or on top of the seat fabric, could alsointerfere with the operation of the passenger sensing
system. This could either prevent proper deployment
of the passenger airbag(s) or prevent the passenger
sensing system from properly turning off the
passenger airbag(s). SeePassenger Sensing
System on page 1-63.
If you have any questions about this, you should
contact Customer Assistance before you modify
your vehicle. The phone numbers and addresses for
Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this manual.
SeeCustomer Satisfaction Procedure on page 7-2.
Q:Because I have a disability, I have to get
my vehicle modied. How can I nd out whether
this will affect my airbag system?
A:If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service manual
have information about the location of the airbag
sensors, sensing and diagnostic module and airbag
wiring.
1-69

Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, check the safety belt reminder light,
safety belts, buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired. Torn or
frayed safety belts may not protect you in a crash.
They can rip apart under impact forces. If a belt is torn
or frayed, get a new one right away.
Make sure the safety belt reminder light is working. See
Safety Belt Reminders on page 3-56for more
information.
Keep safety belts clean and dry. SeeCare of Safety
Belts on page 5-93.
Airbags
The airbag system does not need regularly scheduled
maintenance or replacement. Make sure the airbag
readiness light is working. SeeAirbag Readiness Light
on page 3-57for more information.
Notice:If an airbag covering is damaged, opened,
or broken, the airbag may not work properly. Do
not open or break the airbag coverings. If there are
any opened or broken airbag covers, have the
airbag covering and/or airbag module replaced. For
the location of the airbag modules, seeWhat
Makes an Airbag Inflate? on page 1-61. See your
dealer/retailer for service.
1-70

Keys
{CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons, children
or others could be badly injured or even killed.
They could operate the power windows or
other controls or even make the vehicle move.
The windows will function with the keys in the
ignition and they could be seriously injured
or killed if caught in the path of a closing
window. Do not leave the keys in a vehicle
with children.
The master key is used for the driver door, ignition, and
glove box.
A valet key may be available and used for the driver
door and ignition.
Notice:If you ever lock your keys in your vehicle,
you may have to damage the vehicle to get in.
Be sure you have spare keys.
In an emergency, contact Roadside Assistance.
SeeRoadside Service on page 7-8.
2-3

Remote Keyless Entry (RKE)
System
The Remote Keyless Entry (RKE) 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.If there is a decrease in the RKE operating range,
try this:
Check the distance. The transmitter may be too far
from the vehicle. Stand closer during rainy or
snowy weather.
Check the location. Other vehicles or objects may
be blocking the signal. Take a few steps to the
left or right, hold the transmitter higher, and
try again.
Check the transmitter’s battery. See “Battery
Replacement” later in this section.
If the transmitter is still not working correctly, see
your dealer/retailer or a qualied technician for
service.
2-4

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 modications 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 modications 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