engine overheat CADILLAC CTS 2013 2.G User Guide

Black plate (54,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
9-54 Driving and Operating
Parking on Hills
{WARNING
Parking the vehicle on a hill with
the trailer attached can be
dangerous. If something goes
wrong, the rig could start to move.
People can be injured, and both
the vehicle and the trailer can be
damaged. When possible, always
park the rig on a flat surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park) yet. Turn
the wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the brake pedal
until the chocks absorb the load. 4. Reapply the brake pedal. Then
apply the parking brake and shift
into P (Park) for vehicles with an
automatic transmission or into
gear for vehicles with a manual
transmission.
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal while you:
.Start the engine.
.Shift into a gear.
.Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See the
Maintenance Schedule on
page 11‑3. Things that are
especially important in trailer
operation are automatic
transmission fluid, engine oil, axle
lubricant, belts, cooling system and
brake system. Inspect these before
and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
on page 10‑21.
Trailer Towing (CTS-V and
Coupe)
The vehicle is neither designed nor
intended to tow a trailer.

Black plate (1,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-3
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-3
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Cover . . . . . . . . . . . . . . . . 10-8
Engine Oil . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-11
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-13
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-13
Hydraulic Clutch . . . . . . . . . . . . 10-13
Engine Air Cleaner/Filter . . . . 10-14
Cooling System . . . . . . . . . . . . 10-16
Engine Coolant . . . . . . . . . . . . . 10-17 Engine Overheating . . . . . . . . 10-21
Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-22
Power Steering Fluid . . . . . . . 10-22
Washer Fluid . . . . . . . . . . . . . . . 10-23
Brakes . . . . . . . . . . . . . . . . . . . . . 10-24
Brake Fluid . . . . . . . . . . . . . . . . . 10-25
Battery . . . . . . . . . . . . . . . . . . . . . 10-26
All-Wheel Drive . . . . . . . . . . . . . 10-27
Starter Switch Check . . . . . . . 10-27
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-28
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-28
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-29
Wiper Blade Replacement . . . . . . . . . . . . . . 10-29
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-31
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-31
Halogen Bulbs . . . . . . . . . . . . . . 10-31
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 10-32 LED Lighting . . . . . . . . . . . . . . . 10-32
Fog Lamps . . . . . . . . . . . . . . . . . 10-32
License Plate Lamp (Coupe
and Sedan) . . . . . . . . . . . . . . . 10-32
License Plate Lamp
(Wagon) . . . . . . . . . . . . . . . . . . 10-33
Replacement Bulbs . . . . . . . . . 10-34
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-34
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-35
Engine Compartment Fuse Block (CTS Coupe and
Sedan) . . . . . . . . . . . . . . . . . . . . 10-35
Engine Compartment Fuse
Block (CTS-V Coupe and
Sedan) . . . . . . . . . . . . . . . . . . . . 10-39
Engine Compartment Fuse Block (CTS Wagon) . . . . . . . 10-42
Engine Compartment Fuse Block (CTS-V Wagon) . . . . . 10-46
Rear Compartment Fuse Block (CTS Coupe and
Sedan) . . . . . . . . . . . . . . . . . . . . 10-49

Black plate (17,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-17
Notice:Using coolant other than
DEX-COOL®can cause premature
engine, heater core, or radiator
corrosion. In addition, the engine
coolant could require changing
sooner, at 50 000 km (30,000 mi)
or 24 months, whichever occurs
first. Any repairs would not be
covered by the vehicle warranty.
Always use DEX-COOL
(silicate-free) coolant in the
vehicle.
Engine Coolant
The cooling system in the vehicle
for all engines and the intercooler is
filled with DEX-COOL
®. This coolant
is designed to remain in the vehicle
for 5 years or 240 000 km
(150,000 mi), whichever occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating on
page 10‑21.
What to Use
{WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or others
could be burned. Use a 50/
50 mixture of clean, drinkable
water and DEX-COOL coolant. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:.Gives freezing protection down
to
−37°C (−34°F), outside
temperature.
.Gives boiling protection up to
129°C (265°F), engine
temperature.
.Protects against rust and
corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
Notice: If improper coolant
mixture, inhibitors, or additives
are used in the vehicle cooling
system, the engine could
overheat and be damaged. Too
much water in the mixture can
freeze and crack engine cooling
parts. The repairs would not be
covered by the warranty. Use only
the proper mixture of engine

Black plate (18,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
10-18 Vehicle Care
coolant for the cooling system.
SeeRecommended Fluids and
Lubricants on page 11‑13.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The engine coolant reservoir is in
the engine compartment on the
driver side of the vehicle. See
Engine Compartment Overview on
page 10‑5.
Check to see if coolant is visible in
the surge tank. If the coolant inside
the surge tank is boiling, do not do
anything else until it cools down. If coolant is visible but the coolant
level is not at or above the FULL
COLD mark, add a 50/50 mixture of
clean, drinkable water and
DEX-COOL coolant at the coolant
surge tank, but be sure the cooling
system is cool before this is done.
If the engine is warm or hot, the
coolant level should be at or above
the FROID/FULL COLD line on the
side of the coolant surge tank. If the
engine is cold, the coolant level
should be near the FROID/FULL
COLD line on the side of the coolant
surge tank. If it is not, there could
be a leak in the cooling system.
How to Add Coolant to the
Surge Tank
{WARNING
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
(Continued)
WARNING (Continued)
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
Notice: This vehicle has a
specific coolant fill procedure.
Failure to follow this procedure
could cause the engine to
overheat and be severely
damaged.
{WARNING
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.

Black plate (21,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
Vehicle Care 10-21
Notice:If the pressure cap is not
tightly installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
If the coolant is not at the proper
level when the system cools down
again, see your dealer.
Engine Overheating
The vehicle has several indicators
to warn of engine overheating.
There are two engine hot messages
that may be displayed in the Driver
Information Center (DIC). See
Engine Cooling System Messages
on page 5‑34 for more information.
You may decide not to lift the hood
when one of these warnings appear,
but get service help right away. See
Roadside Service (U.S. and
Canada) on page 13‑7 orRoadside
Service (Mexico) on page 13‑9.
If you do decide to lift the hood,
make sure the vehicle is parked on
a level surface. Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fan(s)
should be running. If they are not,
do not continue to run the engine
and have the vehicle serviced.
Notice:
Running the engine
without coolant may cause
damage or a fire. Vehicle damage
would not be covered by the
warranty. See Overheated Engine
Protection Operating Mode on
page 10‑22 for information on
driving to a safe place in an
emergency.
If Steam Is Coming from the
Engine Compartment
{WARNING
Steam from an overheated engine
can burn you badly, even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
(Continued)
WARNING (Continued)
off and get everyone away from
the vehicle until it cools down.
Wait until there is no sign of
steam or coolant before you open
the hood.
If you keep driving when the
engine is overheated, the liquids
in it can catch fire. You or others
could be badly burned. Stop the
engine if it overheats, and get out
of the vehicle until the engine
is cool.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.

Black plate (22,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
10-22 Vehicle Care
.Idles for long periods in traffic.
.Tows a trailer.
If the overheat warning is displayed
with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral) while stopped.
If it is safe to do so, pull off the
road, shift to P (Park) or
N (Neutral) and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer
displays, the vehicle can be driven.
Continue to drive the vehicle slow
for about 10 minutes. Keep a safe
vehicle distance from the car in front
of you. If the warning does not come
back on, continue to drive normally. If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down. Also, see
“Overheated
Engine Protection Operating Mode”
next in this section.
Overheated Engine
Protection
Operating Mode
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Should a hot
engine condition exist, an overheat
protection mode which alternates
firing groups of cylinders helps
prevent engine damage. In this
mode, there is a loss in power and
engine performance. Driving
extended distances and/or towing a
trailer in the overheat protection
mode should be avoided.
Power Steering Fluid
See Engine Compartment Overview
on page 10‑5 for the location of the
power steering fluid reservoir.
When to Check Power Steering
Fluid
It is not necessary to regularly
check power steering fluid unless
you suspect there is a leak in the
system or you hear an unusual
noise. A fluid loss in this system
could indicate a problem. Have the
system inspected and repaired.
How to Check Power Steering
Fluid
To check the power steering fluid:
1. Turn the key off and let the engine compartment cool down.

Black plate (4,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
i-4 INDEX
DrivingCharacteristics and
Towing Tips . . . . . . . . . . . . . . . . . 9-51
Competitive . . . . . . . . . . . . . . 9-5, 9-37
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-24
Highway Hypnosis . . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . . 9-7
If the Vehicle is Stuck . . . . . . . . . . 9-9
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-4
Vehicle Load Limits . . . . . . . . . . . 9-10
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-6
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 8-1
DVD/CD Player . . . . . . . . . . . . . . . . 7-19
E
Easy Entry Seat . . . . . . . . . . . . . . . . 3-3
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . 9-57 Electrical System
Engine
Compartment
Fuse Block . . . . . 10-35, 10-39, 10-42, 10-46
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-35
Overload . . . . . . . . . . . . . . . . . . . 10-34
Rear Compartment
Fuse Block . . . . . 10-49, 10-52, 10-54, 10-56
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine
Air Cleaner/Filter . . . . . . . . . . . 10-14
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-19
Compartment Overview . . . . . . . 10-5
Coolant . . . . . . . . . . . . . . . . . . . . . 10-17
Coolant Heater . . . . . . . . . . . . . . . 9-21
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-24
Cooling System . . . . . . . . . . . . . 10-16
Cooling System Messages . . . 5-34 Engine (cont'd)
Cover . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Drive Belt Routing . . . . . . . . . . . . 12-5
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-24
Oil Life System . . . . . . . . . . . . . .10-11
Oil Messages . . . . . . . . . . . . . . . . . 5-35
Oil Pressure Gauge . . . . . . . . . . 5-15
Overheated Protection
Operating Mode . . . . . . . . . . . 10-22
Overheating . . . . . . . . . . . . . . . . 10-21
Power Messages . . . . . . . . . . . . . 5-36
Pressure Light . . . . . . . . . . . . . . . . 5-25
Running While Parked . . . . . . . . 9-24
Speed Limiter . . . . . . . . . . . . . . . . . 5-15
Starting . . . . . . . . . . . . . . . . . . 1-4, 9-19
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-7
Equipment, Towing . . . . . . . . . . . . 9-56
Event Data Recorders . . . . . . . . 13-19
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-7
Extender, Safety Belt . . . . . . . . . . 3-18
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Black plate (8,1)Cadillac CTS/CTS-V Owner Manual - 2013 - crc2 - 8/22/12
i-8 INDEX
Messages (cont'd)Fuel System . . . . . . . . . . . . . . . . . . 5-36
Key and Lock . . . . . . . . . . . . . . . . . 5-36
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
Object Detection System . . . . . 5-39
Ride Control System . . . . . . . . . . 5-40
Security . . . . . . . . . . . . . . . . . . . . . . 5-42
Service Vehicle . . . . . . . . . . . . . . . 5-43
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Transmission . . . . . . . . . . . . . . . . . 5-44
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-31
Vehicle Speed . . . . . . . . . . . . . . . . 5-45
Washer Fluid . . . . . . . . . . . . . . . . . 5-45
Mirrors
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . 2-27
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-26
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-27
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-27
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-68
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
Multi-band Antenna . . . . . . . . . . . . 7-16N
Navigation
OnStar®. . . . . . . . . . . . . . . . . . . . . . 14-2
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . 13-20
Net Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Net, Convenience . . . . . . . . . . . . . . 4-5
New Vehicle Break-In . . . . . . . . . . 9-14
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . 5-39
Object Detection, Side Blind Zone Alert (SBZA) . . . . . . . . . . . 9-42
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-13 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Off-Road
Recovery . . . . . . . . . . . . . . . . . . . . . . 9-4
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . .10-11
Engine Oil PressureGauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Messages . . . . . . . . . . . . . . . . . . . . 5-35
Pressure Light . . . . . . . . . . . . . . . . 5-25 Older Children, Restraints . . . . . 3-33
Online Owner Center . . . . . . . . . . 13-6
OnStar
®
System, In Brief . . . . . . . . . . . . . . 1-24
OnStar®Additional
Information . . . . . . . . . . . . . . . . . . . 14-5
OnStar
®Connections . . . . . . . . . . 14-3
OnStar®Diagnostics . . . . . . . . . . . 14-5
OnStar®Emergency . . . . . . . . . . . 14-2
OnStar®Navigation . . . . . . . . . . . . 14-2
OnStar®Overview . . . . . . . . . . . . . 14-1
OnStar®Security . . . . . . . . . . . . . . 14-2
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Ordering Service Publications . . . . . . . . 13-16
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 10-22
Overheating, Engine . . . . . . . . . . 10-21