Page 1 of 420

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-6
Safety Belts
.............................................. 1-7
Child Restraints
.......................................1-28
Airbag System
.........................................1-48
Restraint System Check
............................1-58
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-9
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-19
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-37
OnStar
®System
......................................2-42
HomeLink®Wireless Control System
...........2-44
Storage Areas
.........................................2-49
Sunroof
..................................................2-52
Vehicle Personalization
.............................2-53
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-30
Warning Lights, Gages, and Indicators
........3-40
Driver Information Center (DIC)
..................3-57Trip Computer
.........................................3-79
Audio System(s)
.......................................3-80
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
........ 4-2
Towing
...................................................4-35
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-48
Bulb Replacement
....................................5-51
Windshield Wiper Blade Replacement
.........5-56
Tires
......................................................5-57
Appearance Care
.....................................5-87
Vehicle Identi cation
.................................5-96
Electrical System
......................................5-97
Capacities and Speci cations
...................5-106
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-10
Index................................................................ 1
2005 Cadillac DeVille Owner ManualM
Page 19 of 420

Driver Position
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how to wear
it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight. To see
how, see “Seats” in the Index.
3. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
4. Push the latch plate into the buckle until it clicks.
Be sure to use the correct buckle when buckling
your lap-shoulder belt. If you nd that the latch plate
will not go fully into the buckle, see if you are
using the buckle for the center passenger position.
Pull up on the latch plate to make sure it is
secure. If the belt is not long enough, seeSafety
Belt Extender on page 1-27.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
1-13
Page 59 of 420
The side impact airbags for the rear seat outboard
passenger positions are in the sides of the rear seatback
closest to the doors.
{CAUTION:
If something is between an occupant and an
airbag, the airbag might not in ate properly
or it might force the object into that person
causing severe injury or even death. The path
of an in ating airbag must be kept clear.
Do not put anything between an occupant and
an airbag, and do not attach or put anything
on the steering wheel hub or on or near any
other airbag covering. Do not let seat covers
block the in ation path of a side impact airbag.
1-53
Page 62 of 420