2006 CADILLAC DTS ECU

3. Insert the jack container (E) into the spare tire (F).
Then insert the jack and wheel wrench (D) into the
center of the compact spare tire making sure to
line up the wheel nut hole with the bolt (G) on the
compartment oor.
4. Secure the tire and wheel with the retainer (C) and
then the wing nut (B).
5. Reinstall the compact spare tire cover (A).
Spare Tire
Compact Spare Tire
Your vehicle may have a compact spare tire.
Although the compact spare tire was fully inated
when the vehicle was new, it can lose air after a time.
Check the ination pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on the vehicle, stop
as soon as possible and make sure the spare tire
is correctly inated. The compact spare is made to
perform well at speeds up to 65 mph (105 km/h)
for distances up to 3,000 miles (5 000 km), so you can
nish your trip and have the full-size tire repaired or
replaced at your convenience. Of course, it is best
to replace the spare with a full-size tire as soon as
possible. The spare tire will last longer and be in good
shape in case it is needed again.Notice:When the compact spare is installed, do
not take your vehicle through an automatic car wash
with guide rails. The compact spare can get
caught on the rails. That can damage the tire and
wheel, and maybe other parts of your vehicle.
Do not use the compact spare on other vehicles.
And do not mix the compact spare tire or wheel with
other wheels or tires. They will not t. Keep the
spare tire and its wheel together.
Notice:Tire chains will not t your compact spare.
Using them can damage your vehicle and can
damage the chains too. Do not use tire chains on
your compact spare.
Spare Tire
Your vehicle may have a spare tire, which, when
new, was fully inated. A spare tire may lose air over
time, so check its ination pressure regularly. See
Ination - Tire Pressure on page 5-56andLoading Your
Vehicle on page 4-31for information regarding proper tire
ination and loading your vehicle. For instructions
on how to remove, install or store a spare tire, see
Removing the Flat Tire and Installing the Spare Tire
on page 5-75.
5-82

To reinstall the rear seat cushion, do the following:
{CAUTION:
A safety belt that is not properly routed
through the seat cushion or is twisted will not
provide the protection needed in a crash.
CAUTION: (Continued)
CAUTION: (Continued)
If the safety belt has not been routed through
the seat cushion at all, it will not be there to
work for the next passenger. The person
sitting in that position could be badly injured.
After reinstalling the seat cushion, always
check to be sure that the safety belts are
properly routed and are not twisted.
1. Buckle the center passenger position safety belt,
then route the safety belts through the proper slots
in the seat cushion. Do not let the safety belts
get twisted.
2. Slide the rear of the cushion up and under the
seatback so the rear-locating guides hook into
the wire loops on the back frame.
3. With the seat cushion lowered, push rearward and
then press down on the seat cushion until the
spring locks on both ends engage.
4. Check to make sure the safety belts are properly
routed and that no portion of any safety belt is
trapped under the seat. Also make sure the seat
cushion is secured.
5-97

Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your GM Goodwrench
®dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. SeeEngine Oil on page 5-13for
further details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. See
Engine Coolant on page 5-22for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the
windshield washer uid reservoir and add the proper
uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your vehicle’s tires and make sure they
are inated to the correct pressures. Do not forget to
check the spare tire. SeeTires on page 5-49for further
details. Check to make sure the spare tire is stored
securely. SeeChanging a Flat Tire on page 5-72.
Tire Wear Inspection
Tire rotation may be required for high mileage highway
drivers prior to the Engine Oil Life System service
notication. Check the tires for wear and, if necessary,
rotate the tires. SeeTire Inspection and Rotation on
page 5-63.
6-9

Center Seat..................................................... 1-7
Chains, Tire...................................................5-70
Charging System Light....................................3-61
Check
Engine Light...............................................3-66
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-89
Child Restraints
Child Restraint Systems...............................1-36
Infants and Young Children...........................1-33
Lower Anchors and Tethers for Children............1-41
Older Children.............................................1-30
Securing a Child Restraint in a
Rear Seat Position...................................1-48
Securing a Child Restraint in the
Center Front Seat Position........................1-50
Securing a Child Restraint in the
Right Front Seat Position..........................1-51
Where to Put the Restraint...........................1-40
Cigarette Lighter.............................................3-43
Cleaning
Aluminum or Chrome-Plated Wheels..............5-88
Exterior Lamps/Lenses.................................5-86
Fabric/Carpet..............................................5-84
Finish Care.................................................5-87
Inside of Your Vehicle..................................5-83
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-85Cleaning (cont.)
Leather......................................................5-85
Speaker Covers..........................................5-86
Tires..........................................................5-88
Underbody Maintenance...............................5-89
Washing Your Vehicle...................................5-86
Weatherstrips..............................................5-86
Windshield and Wiper Blades........................5-87
Wood Panels..............................................5-85
Climate Control System
Air Filter, Passenger Compartment.................3-53
Dual..........................................................3-44
Outlet Adjustment........................................3-50
Rear..........................................................3-51
Clock............................................................3-44
Coinholder(s)..................................................2-49
Collision Damage Repair..................................7-10
Comfort Guides, Rear Safety Belt.......................1-27
Compass................................1-8, 2-35, 2-37, 2-39
Content Theft-Deterrent....................................2-19
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-50
Coolant
Engine Temperature Gage............................3-65
Engine Temperature Warning Light.................3-65
Heater, Engine............................................2-25
Surge Tank Pressure Cap.............................5-25
Cooled Seats................................................... 1-3
3

Cooling System..............................................5-28
Cornering Lamps............................................3-35
Courtesy Lamps.............................................3-36
Cruise Control................................................3-16
Cruise Control, Adaptive..................................3-19
Cruise Control, Forward Collision Alert (FAC)
System........................................................ 3-9
Cruise Control Light........................................3-70
Cupholder(s)..................................................2-49
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-5
Reporting Safety Defects to
General Motors........................................7-14
Reporting Safety Defects to the
Canadian Government..............................7-14
Reporting Safety Defects to the
United States Government.........................7-13
Roadside Service.......................................... 7-6
Service Publications Ordering
Information..............................................7-14D
Daytime Running Lamps..................................3-34
Defensive Driving............................................. 4-2
Diversity Antenna System...............................3-124
Doing Your Own Service Work........................... 5-4
Door
Central Door Unlocking System.....................2-11
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-12
Driver
Position, Safety Belt.....................................1-15
Driver Information Center (DIC).........................3-71
DIC Controls and Displays............................3-72
DIC Vehicle Customization............................3-88
DIC Warnings and Messages........................3-76
Driving
At Night.....................................................4-17
City...........................................................4-21
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-22
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-18
Rocking Your Vehicle to Get it Out.................4-31
Winter........................................................4-26
Dual Climate Control System............................3-44
4

Light (cont.)
Passenger Airbag Status Indicator..................3-59
Passenger Safety Belt Reminder....................3-58
Safety Belt Reminder...................................3-57
Security.....................................................3-69
StabiliTrak
®Indicator....................................3-64
TCS Warning Light......................................3-64
Traction Control System (TCS) Warning..........3-64
Lighting
Entry.........................................................3-36
Parade Dimming..........................................3-36
Loading Your Vehicle.......................................4-31
Lockout Protection..........................................2-12
Locks
Central Door Unlocking System.....................2-11
Door..........................................................2-10
Lockout Protection.......................................2-12
Power Door................................................2-11
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-15
Lumbar
Massaging Controls....................................... 1-3
Power Controls............................................. 1-2
Lumbar Controls, Rear Power............................ 1-8
M
Magnetic Ride Control.....................................4-10
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-14
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-13
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-66
Massaging Lumbar Controls............................... 1-3
Memory Mirrors..............................................2-52
Memory Seat.................................................2-52
Memory Steering Wheel Controls......................2-52
Message
DIC Warnings and Messages........................3-76
8

P
Paint, Damage...............................................5-89
Panic Brake Assist..........................................4-11
Parade Dimming.............................................3-36
Park Aid........................................................3-38
Park (P)
Shifting Into................................................2-30
Shifting Out of............................................2-32
Parking
Assist........................................................3-38
Brake........................................................2-30
Over Things That Burn.................................2-33
Passenger Airbag Status Indicator.....................3-59
Passenger Compartment Air Filter.....................3-53
Passenger Sensing System..............................1-65
Passing.........................................................4-14
PASS-Key
®III+..............................................2-21
PASS-Key®III+ Operation................................2-21
Performance Shifting.......................................2-29
Power
Accessory Outlet(s)......................................3-42
Door Locks.................................................2-11
Electrical System.........................................5-93
Inadvertent Battery Saver.............................3-37
Lumbar Controls........................................... 1-2
Rear Lumbar Controls.................................... 1-8
Reclining Seatbacks...................................... 1-4
Retained Accessory (RAP)............................2-24
Seat............................................................ 1-2Power (cont.)
Steering Fluid.............................................5-33
Tilt Wheel and Telescopic Steering Column......... 3-7
Windows....................................................2-16
Pretensioners, Safety Belt................................1-29
Programmable Automatic Door Locks.................2-11
Q
Questions and Answers About Safety Belts.........1-13
R
Radios..........................................................3-97
Care of Your CD Player..............................3-124
Care of Your CDs......................................3-124
Navigation/Radio System, see
Navigation Manual..................................3-121
Radio with CD...........................................3-102
Setting the Time................................3-98, 3-100
Theft-Deterrent..........................................3-121
Understanding Reception............................3-123
Rainsense™ II Wipers.....................................3-14
Reading Lamps..............................................3-37
Rear Climate Control System............................3-51
Rear Door Security Locks................................2-12
Rear Fog Lamp Light......................................3-69
Rear Heated Seats........................................... 1-7
Rear Safety Belt Comfort Guides......................1-27
10

Seats (cont.)
Power Lumbar, Rear...................................... 1-8
Power Reclining Seatbacks............................. 1-4
Power Seats................................................. 1-2
Securing a Child Restraint
Center Front Seat Position............................1-50
Rear Seat Position......................................1-48
Right Front Seat Position..............................1-51
Security Light.................................................3-69
Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside
of Your Vehicle.......................................... 5-5
California Proposition 65 Warning.................... 5-3
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-66
Publications Ordering Information...................7-14
Servicing Your Airbag-Equipped Vehicle...............1-70
Setting the Time...................................3-98, 3-100
Sheet Metal Damage.......................................5-89
Shifting Into Park (P).......................................2-30
Shifting Out of Park (P)...................................2-32
Shoulder Belt Height Adjuster...........................1-21
Signals, Turn and Lane-Change.......................... 3-8
Spare Tire.....................................................5-82
Installing....................................................5-75
Removing...................................................5-73
Storing.......................................................5-81
Specications, Capacities...............................5-101Speedometer..................................................3-57
StabiliTrak®System.........................................4-10
StabiliTrak®Indicator Light................................3-64
Starting Your Engine.......................................2-24
Steering........................................................4-11
Steering Wheel Controls, Audio.......................3-122
Steering Wheel Controls, Memory.....................2-52
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Power Tilt Wheel and
Telescopic Steering Column............................ 3-7
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-50
Center Flex Storage Unit..............................2-50
Coinholder(s)..............................................2-49
Convenience Net.........................................2-50
Cupholder(s)...............................................2-49
Glove Box..................................................2-49
Rear Seat Armrest.......................................2-50
Stuck in Sand, Mud, Ice, or Snow.....................4-30
Sun Visors.....................................................2-18
Sunroof.........................................................2-51
T
Tachometer....................................................3-57
TCS Warning Light..........................................3-64
Telescopic Steering Column, Power Tilt Wheel........ 3-7
12