trailer CADILLAC STS 2005 1.G Owner's Manual

If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. In heavy traffic, let the engine idle in NEUTRAL (N)
while stopped. If it is safe to do so, pull off the road,
shift to PARK (P) or NEUTRAL (N) and let the
engine idle.
2. Set the climate controls to the highest heat setting
and fan speed and open the windows, as
necessary.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning does not come back on, you can drive
normally.
If the warning continues and you have not stopped, pull
over, stop, and park your vehicle right away.
If there is still no sign of steam, you can idle the engine
for three minutes while you are parked. If you still
have the warning,turn off the engine and get everyone
out of the vehicleuntil it cools down.
You may decide not to lift the hood but to get service
help right away.Overheated Engine Protection
Operating Mode
This operating mode allows your vehicle to be driven to
a safe place in an emergency. Should an overheated
engine condition exist, an overheat protection mode
which alternates ring groups of cylinders helps prevent
engine damage. In this mode, you will notice a loss
in power and engine performance. A low coolant and/or
engine overheat warning will indicate that an overheat
condition exists. Driving extended miles (km) and/or
towing a trailer in the overheat protection mode should
be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss and change the oil.
SeeEngine Oil on page 5-15.
5-26

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles (kilometers)
shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage
or leaks.• •••••
Inspect exhaust system for loose or
damaged components.• •••••
Replace engine air cleaner lter. See
Engine Air Cleaner/Filter on page 5-20.••
Change automatic transmission
uid and lter (severe service only).
See footnote (h).•••
For all-wheel-drive vehicles used for
trailer towing: Change transfer case
uid.•••
Throttle body service.An Emission
Control Service. See footnotes † and (l).• •••••
Replace spark plugs.An Emission
Control Service.•
6-6

(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors, and anchorages
are 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. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
The airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the hood, rear
compartment, glove box door, and console door.
More frequent lubrication may be required when
exposed to a corrosive environment. Applying silicone
grease on weatherstrips with a clean cloth will make
them last longer, seal better, and not stick or squeak.
(g)If you drive regularly under dusty conditions, the lter
may require replacement more often.(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as limousine service.
Uses such as high performance operation.
If you do not use your vehicle under any of these
conditions, the uid and lter do not require change.
(j)Drain, ush, and rell cooling system. This service
can be complex; you should have your dealer perform
this service. See Engine Coolant on page 5-22 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(k)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the uid level checked. Add uid if needed.
(l)Inspect throttle body bore and valve plates for
deposits. Open the throttle valve and inspect all
surfaces. Clean as required.
(m)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
6-8

Steering Wheel Controls, Audio.......................3-116
Steering Wheel Controls, Memory.....................2-65
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Power Tilt Wheel and
Telescopic Steering Column............................ 3-6
Storage Areas
Center Console Storage Area........................2-45
Convenience Net.........................................2-45
Cupholder(s)...............................................2-45
Glove Box..................................................2-45
Stuck in Sand, Mud, Ice or Snow......................4-29
Sun Visors.....................................................2-18
Sunroof.........................................................2-46
T
Tachometer....................................................3-62
TCS Warning Light..........................................3-66
Telescopic Steering Column, Power Tilt Wheel...... 3-6
Theft-Deterrent, Radio....................................3-115
Theft-Deterrent System....................................2-19
Theft-Deterrent Systems...................................2-19
Tires.............................................................5-53
Aluminum or Chrome-Plated Wheels,
Cleaning.................................................5-91
Buying New Tires........................................5-68
Chains.......................................................5-73
Changing a Flat Tire....................................5-74Tires (cont.)
Cleaning....................................................5-91
Compact Spare Tire.....................................5-84
If a Tire Goes Flat.......................................5-74
Ination -- Tire Pressure...............................5-60
Inspection and Rotation................................5-65
Installing the Spare Tire................................5-77
Pressure Monitor System..............................5-62
Removing the Flat Tire.................................5-77
Removing the Spare Tire and Tools...............5-76
Storing a Flat or Spare Tire and Tools............5-83
Tire Sidewall Labelling..................................5-54
Tire Terminology and Denitions....................5-58
Uniform Tire Quality Grading.........................5-70
Wheel Alignment and Tire Balance.................5-71
Wheel Replacement.....................................5-71
When It Is Time for New Tires......................5-67
Top Strap......................................................1-35
Top Strap Anchor Location...............................1-37
Towing
Recreational Vehicle.....................................4-35
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-35
Traction
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-66
Limited-Slip Rear Axle.................................... 4-9
Magnetic Ride Control................................... 4-9
StabiliTrak
®System.....................................4-10
12