check engine CADILLAC DEVILLE 2005 8.G Workshop Manual

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition to OFF in each shift lever position.
The ignition should turn to OFF only when the shift
lever is in PARK (P).
The key should come out only in OFF.
Contact your GM Goodwrench
®dealer if service is
required.
Parking Brake and Automatic Transaxle
Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
To check the parking brake’s holding ability: With
the engine running and transaxle in NEUTRAL (N),
slowly remove foot pressure from the regular
brake pedal. Do this until the vehicle is held by the
parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the regular
brake.
Contact your GM Goodwrench
®dealer if service is
required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-11

Audio System(s) (cont.)
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-81
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-80
Theft-Deterrent Feature...............................3-103
Understanding Radio Reception...................3-104
XM™ Satellite Radio Antenna System...........3-107
Automatic Transaxle
Fluid..........................................................5-21
Operation...................................................2-28
B
Battery..........................................................5-40
Exterior Lighting Battery Saver......................3-20
Inadvertent Power Saver..............................3-22
Load Management.......................................3-22
Before Leaving on a Long Trip.........................4-22
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-31
System Warning and Parking Brake
Indicator Light..........................................3-47
Brakes..........................................................5-37
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-24Bulb Replacement...........................................5-51
Front Turn Signal, Sidemarker,
Parking and Cornering Lamps....................5-55
Halogen Bulbs............................................5-51
Headlamp Aiming........................................5-48
Headlamps.................................................5-51
Replacement Bulbs......................................5-56
Buying New Tires...........................................5-71
C
California Fuel.................................................. 5-5
Canadian Owners................................................ ii
Capacities and Specications..........................5-106
Carbon Monoxide...................2-12, 2-35, 4-25, 4-37
Care of
Safety Belts................................................5-91
Your Cassette Tape Player..........................3-105
Your CD Player.........................................3-107
Your CDs .................................................3-106
CD Changer, Glovebox-Mounted......................3-100
Center Console Storage Area...........................2-49
Center Flex Storage Unit.................................2-50
Center Front Passenger Position,
Safety Belts................................................1-20
Chains, Tire...................................................5-75
Charging System Light....................................3-46
Check
Engine Light...............................................3-50
2

Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-94
Child Restraints
Child Restraint Systems...............................1-34
Infants and Young Children...........................1-31
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-40
Older Children.............................................1-28
Securing a Child Restraint Designed for
the LATCH System...................................1-42
Securing a Child Restraint in a
Rear Seat Position...................................1-42
Securing a Child Restraint in the
Center Front Seat Position........................1-44
Securing a Child Restraint in the
Right Front Seat Position..........................1-45
Top Strap...................................................1-38
Top Strap Anchor Location............................1-39
Where to Put the Restraint...........................1-37
Cigarette Lighter.............................................3-29
Cleaning
Aluminum or Chrome-Plated Wheels..............5-93
Exterior Lamps/Lenses.................................5-91
Fabric/Carpet..............................................5-89
Finish Care.................................................5-92
Glass Surfaces............................................5-90
Inside of Your Vehicle..................................5-87
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-90
Leather......................................................5-89Cleaning (cont.)
Speaker Covers..........................................5-90
Tires..........................................................5-94
Underbody Maintenance...............................5-94
Washing Your Vehicle...................................5-91
Weatherstrips..............................................5-91
Windshield and Wiper Blades........................5-92
Wood Panels..............................................5-90
Climate Control System
Air Filter, Passenger Compartment.................3-36
Climate Controls Personalization....................3-39
Dual..........................................................3-30
Outlet Adjustment........................................3-34
Rear..........................................................3-35
Steering Wheel Controls...............................3-38
Comfort Controls, DIC Personalization................3-68
Comfort Guides, Rear Safety Belt.....................1-24
Compact Spare Tire........................................5-86
Continuous Variable Road Sensing
Suspension (CVRSS)...................................4-10
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-51
Coolant
Engine Temperature Gage............................3-49
Engine Temperature Warning Light.................3-49
Heater, Engine............................................2-27
Surge Tank Pressure Cap.............................5-27
Cooled Seats................................................... 1-3
Cooling System..............................................5-30
Cornering Lamps............................................3-18
3

Electrical System (cont.)
Headlamp Wiring.........................................5-97
Power Windows and Other Power Options.........5-97
Rear Underseat Fuse Block.........................5-101
Underhood Fuse Block.................................5-98
Windshield Wiper Fuses...............................5-97
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-50
Coolant......................................................5-24
Coolant Heater............................................2-27
Coolant Temperature Gage...........................3-49
Coolant Temperature Warning Light................3-49
Engine Compartment Overview......................5-12
Exhaust.....................................................2-35
Oil .............................................................5-14
Oil Life System...........................................5-17
Overheated Protection Operating Mode...........5-29
Overheating................................................5-27
Speed Limiter.............................................3-44
Starting......................................................2-26
Entry Lighting.................................................3-21
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-27
Exterior Lamps...............................................3-15
Exterior Lighting Battery Saver..........................3-20F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-94
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-76
Flat Tire, Changing.........................................5-77
Flat Tire, Storing.............................................5-85
Fluid
Automatic Transaxle.....................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
Fog Lamp Light..............................................3-54
Fog Lamps....................................................3-18
Front Storage Area.........................................2-49
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Data Display...............................................3-56
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-55
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Full Floor Console Storage Area.......................2-49
5

Fuses
Fuses and Circuit Breakers...........................5-98
Rear Underseat Fuse Block.........................5-101
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-97
G
Gage
Engine Coolant Temperature.........................3-49
Fuel..........................................................3-55
Speedometer..............................................3-43
Tachometer.................................................3-44
Garage Door Opener.......................................2-44
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-49
Glovebox-Mounted CD Changer......................3-100
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Headlamp
Aiming.......................................................5-48
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50Headlamp Wiring............................................5-97
Headlamps....................................................5-51
Bulb Replacement.......................................5-51
Daytime Running Lamps...............................3-16
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker,
Parking and Cornering Lamps....................5-55
Halogen Bulbs............................................5-51
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Wiper Activated...........................................3-16
Heated Seats................................................... 1-3
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-30
Highbeam On Light.........................................3-54
Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-23
HomeLink
®Wireless Control System.................2-44
HomeLink®Wireless Control System
Operation...................................................2-45
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-12
6

N
Navigation/Radio System, see Navigation
Manual......................................................3-99
New Vehicle Break-In......................................2-24
Night Vision System........................................3-22
Normal Maintenance Replacement Parts............6-13
O
Odometer......................................................3-43
Odometer, Trip...............................................3-43
Off-Road Recovery..........................................4-12
Oil
Engine.......................................................5-14
Life Indicator...............................................3-79
Pressure Light.............................................3-53
Oil, Engine Oil Life System..............................5-17
Older Children, Restraints................................1-28
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-42
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-34
Outside
Automatic Dimming Mirror.............................2-41
Convex Mirror.............................................2-41
Curb View Assist Mirror................................2-41
Heated Mirrors............................................2-41
Power Mirrors.............................................2-40Overheated Engine Protection
Operating Mode..........................................5-29
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Parade Dimming.............................................3-21
Park Aid........................................................3-26
Park (P)
Shifting Into................................................2-32
Shifting Out of............................................2-34
Parking
Assist........................................................3-26
Brake........................................................2-31
Brake Indicator Light....................................3-47
Over Things That Burn.................................2-35
Passenger Compartment Air Filter.....................3-36
Passing.........................................................4-13
PASS-Key
®III ................................................2-21
PASS-Key®III Operation..................................2-22
Performance Shifting.......................................2-31
Personalization, Climate Controls......................3-39
Power
Accessory Outlets........................................3-28
Door Locks.................................................2-10
Electrical System.........................................5-97
Inadvertent Battery Saver.............................3-22
9

Replacement Bulbs.........................................5-56
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Restraint System Check
Checking the Restraint Systems....................1-58
Replacing Restraint System Parts
After a Crash..........................................1-59
Retained Accessory Power (RAP)......................2-25
Right Front Passenger Position, Safety Belts......1-20
Roadside
Service........................................................ 7-5
Rocking Your Vehicle to Get it Out....................4-30
Running the Engine While Parked.....................2-36
S
Safety Belt
Pretensioners..............................................1-27
Reminder Light............................................3-45
Safety Belts
Care of......................................................5-91
Center Front Passenger Position....................1-20
Driver Position............................................1-13
How to Wear Safety Belts Properly................1-12
Questions and Answers About
Safety Belts.............................................1-12Safety Belts (cont.)
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-24
Rear Seat Passengers.................................1-21
Right Front Passenger Position......................1-20
Safety Belt Extender....................................1-27
Safety Belt Use During Pregnancy.................1-19
Safety Belts Are for Everyone......................... 1-7
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Heated and Cooled Seats.............................. 1-3
Heated Seats, Rear....................................... 1-6
Massaging Lumbar........................................ 1-3
Memory.....................................................2-53
Power Lumbar.............................................. 1-2
Power Lumbar, Rear...................................... 1-7
Power Seats................................................. 1-2
Reclining Seatbacks...................................... 1-4
Securing a Child Restraint
Center Front Seat Position............................1-44
Designed for the LATCH System...................1-42
Rear Seat Position......................................1-42
Right Front Seat Position..............................1-45
Security Light.................................................3-53
Service........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-5
Doing Your Own Work................................... 5-4
11