check engine CADILLAC STS 2007 1.G Workshop Manual

(n)Visually inspect belt for fraying, excessive
cracks, or obvious damage. Replace belt if
necessary.
(o)Drain, ush, and rell intercooler system. This
service can be complex; you should have your
dealer perform this service. See Engine Coolant on
page 389
(p)For supercharged engines only: Have your
dealer check the supercharger oil level and
add the proper supercharger oil as needed
(or every 36 months, whichever occurs rst).
See Recommended Fluids and Lubricants
on page 516Owner 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 516.
512

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 380for
further details.
Notice:It is important to check the engine oil
regularly and keep it at the proper level.
Failure to keep the engine oil at the proper
level can cause damage to the 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 389for further details.
Intercooler Coolant Level Check
(4.4L Supercharged Engine)
Check the coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 389for 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. SeeInation - Tire
Pressure on page 431. Check to make sure the
spare tire is stored securely. SeeChanging a Flat
Tire on page 464.
Tire Wear Inspection
Tire rotation is recommended if your vehicle has
the same size tires at all four wheel positions
and 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 438.
513

At Least Once a Year
Starter Switch Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle.
2. Firmly apply both the parking brake and the
regular brake. SeeParking Brake on
page 121.
Do not use the accelerator pedal, and be
ready to turn off the engine immediately if
it starts.
3. Try to start the engine in each gear. The
vehicle should start only in PARK (P) or
NEUTRAL (N). If the vehicle starts in any
other position, contact your GM Goodwrench
®
dealer for service.
Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this inspection, the
vehicle could move suddenly. If the vehicle
moves, you or others could be injured.
1. Before you start, be sure you have enough
room around the vehicle. It should be parked
on a level surface.
2. Firmly apply the parking brake. SeeParking
Brake on page 121.
Be ready to apply the regular brake
immediately if the vehicle begins to move.
3. With the engine off and without applying the
regular brake, try to move the shift lever out
of PARK (P) with normal effort. If the shift
lever moves out of PARK (P), contact your
GM Goodwrench
®dealer for service.
514

Parking Brake and Automatic
Transmission 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 transmission 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.
515

C
Calibration............................................ 14, 128
California Fuel............................................. 366
California Proposition 65 Warning................ 363
Canadian Owners........................................... 3
Capacities and Specications...................... 498
Carbon Monoxide..............101, 125, 344, 357
Care of
Safety Belts............................................. 479
Your CD Player........................................ 313
Your CDs ................................................. 313
CD, MP3 ..................................................... 297
Center Console Storage Area...................... 146
Chains, Tire................................................. 447
Charging System Light................................ 247
Check
Engine Light............................................ 252
Checking Things Under the Hood................ 372
Chemical Paint Spotting.............................. 484
Child Restraints
Child Restraint Systems............................. 44
Infants and Young Children........................ 40
Lower Anchors and Tethers for Children..... 50
Older Children........................................... 38
Securing a Child Restraint in a Rear
Seat Position.......................................... 57Child Restraints (cont.)
Securing a Child Restraint in the Right
Front Seat Position................................. 59
Where to Put the Restraint........................ 48
Cigarette Lighter.......................................... 229
Cleaning
Aluminum or Chrome-Plated Wheels........ 482
Exterior Lamps/Lenses............................. 480
Fabric/Carpet........................................... 477
Finish Care.............................................. 481
Inside of Your Vehicle .............................. 476
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 479
Leather.................................................... 478
Speaker Covers....................................... 479
Tires........................................................ 483
Underbody Maintenance........................... 483
Washing Your Vehicle .............................. 480
Weatherstrips........................................... 480
Windshield and Wiper Blades................... 481
Wood Panels........................................... 479
Climate Control System
Air Filter, Passenger Compartment........... 239
Dual......................................................... 230
Outlet Adjustment..................................... 237
Rear........................................................ 237
Clock.......................................................... 281
547

Driver Information Center (DIC)................... 258
DIC Controls and Displays....................... 258
DIC Warnings and Messages................... 264
Other Messages....................................... 279
Driving
At Night................................................... 333
City.......................................................... 338
Defensive................................................. 316
Drunken................................................... 317
Freeway................................................... 339
Hill and Mountain Roads.......................... 342
In Rain and on Wet Roads...................... 335
Rocking Your Vehicle to Get it Out.......... 349
Winter...................................................... 344
Dual Climate Control System....................... 230
E
Electric Power Management........................ 221
Electrical System
Add-On Equipment................................... 486
Fuses and Circuit Breakers...................... 487
Headlamp Wiring..................................... 486
Power Windows and Other Power
Options................................................. 487Electrical System (cont.)
Rear Underseat Fuse Block..................... 492
Underhood Fuse Block............................. 488
Windshield Wiper Fuses........................... 486
Engine
Air Cleaner/Filter...................................... 386
Battery..................................................... 408
Check and Service Engine Soon Light..... 252
Coolant.................................................... 389
Coolant Heater......................................... 115
Coolant Temperature Gage...................... 251
Coolant Temperature Warning Light.......... 251
Drive Belt Routing.................................... 519
Engine Compartment Overview ................ 373
Exhaust................................................... 125
Oil ........................................................... 380
Oil Life System........................................ 383
Overheated Protection Operating Mode.... 395
Overheating............................................. 393
Starting.................................................... 113
Supercharger Oil...................................... 385
Entry Lighting.............................................. 220
Event Data Recorders (EDR)...................... 536
Extender, Safety Belt..................................... 37
Exterior Lighting Battery Saver.................... 219
549

O
Odometer.................................................... 243
Off-Road Recovery...................................... 330
Oil
Engine..................................................... 380
Pressure Light.......................................... 255
Supercharger, Engine............................... 385
Oil, Engine Oil Life System......................... 383
Older Children, Restraints............................. 38
Online Owner Center................................... 528
OnStar
®System, see OnStar®Manual........ 132
Operation, Universal Home Remote
System............................................137, 142
Other Warning Devices................................ 180
Outlet Adjustment........................................ 237
Outlet(s), Accessory Power.......................... 228
Outside
Automatic Dimming Mirror........................ 131
Convex Mirror.......................................... 131
Parallel Park Assist Mirror........................ 131
Power Heated Mirrors.............................. 130
Overheated Engine Protection
Operating Mode....................................... 395
Owner Checks and Services....................... 512
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 483
Panic Brake Assist...................................... 327
Parade Dimming.......................................... 220
Park Aid...................................................... 226
Park (P)
Shifting Into............................................. 122
Shifting Out of......................................... 124
Parking
Assist....................................................... 226
Brake....................................................... 121
Over Things That Burn............................ 124
Passenger Airbag Status Indicator............... 245
Passenger Compartment Air Filter............... 239
Passenger Sensing System........................... 74
Passing....................................................... 330
Power
Accessory Outlet(s).................................. 228
Door Locks................................................ 99
Electrical System..................................... 487
Inadvertent Battery Saver ......................... 222
Lumbar Controls.......................................... 9
Reclining Seatbacks................................... 11
Retained Accessory (RAP)....................... 112
Seat............................................................ 9
554

Reporting Safety Defects
Canadian Government............................. 542
General Motors........................................ 542
United States Government....................... 542
Restraint System Check
Checking the Restraint Systems................. 80
Replacing Restraint System Parts
After a Crash......................................... 81
Retained Accessory Power (RAP)................ 112
Right Front Passenger Position,
Safety Belts............................................... 30
Roadside
Service.................................................... 531
Rocking Your Vehicle to Get it Out.............. 349
Routing, Engine Drive Belt.......................... 519
Run-Flat Tires............................................. 429
Running the Engine While Parked............... 126
S
Safety Belt
Passenger Reminder Light....................... 244
Pretensioners............................................. 37
Reminder Light........................................ 243Safety Belts
Care of.................................................... 479
Driver Position........................................... 21
How to Wear Safety Belts Properly............ 20
Questions and Answers About
Safety Belts............................................ 19
Rear Safety Belt Comfort Guides............... 34
Rear Seat Passengers............................... 31
Right Front Passenger Position.................. 30
Safety Belt Extender.................................. 37
Safety Belt Use During Pregnancy............. 30
Safety Belts Are for Everyone.................... 15
Shoulder Belt Height Adjuster.................... 29
Safety Warnings and Symbols......................... 4
Scheduled Maintenance............................... 505
Seats
Head Restraints......................................... 13
Heated and Ventilated Seats...................... 11
Heated Seats............................................. 10
Heated Seats - Rear.................................. 14
Memory................................................... 169
Power Lumbar............................................. 9
Power Reclining Seatbacks........................ 11
Power Seats................................................ 9
556