fuel CADILLAC CTS 2014 Owner's Guide

Black plate (10,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
10-10 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer Fluid on
page 10-22.
2. Remote Positive (+) Battery Terminal. See Battery on
page 10-25.
3. Engine Compartment Fuse
Block on page 10-32.
4. Engine Coolant Surge Tank and Pressure Cap. See Cooling
System on page 10-16.
5. Remote Negative (-) Battery Terminal. See Battery on
page 10-25.
6. Engine Cooling Fan (Out of View). See Cooling System on
page 10-16.
7. Engine Oil Fill Cap. See Engine
Oil on page 10-10.
8. Engine Oil Dipstick. See Engine
Oil on page 10-10.
9. Engine Air Cleaner/Filter on
page 10-14.
10. Brake Fluid Reservoir. See Brakes on page 10-23.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-12.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the vehicle
must be on level ground. The
engine oil dipstick handle is a loop.
SeeEngine Compartment Overview
on page 10-5 for the location of the
engine oil dipstick.
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.
{Warning
The engine oil dipstick handle
may be hot; it could burn you.
Use a towel or glove to touch the
dipstick handle.

Black plate (34,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/20/13
10-34 Vehicle Care
Number Usage16 Not Used
*17 Headlamp Washer
18 Not Used
19 Antilock Brake System Pump
20 Antilock Brake System Valve
*21 AIR Pump 22 MSB Driver
23 Wiper Control Relay
24 Wiper Speed Relay
25 Engine Control Module Relay
*26 AIR Pump Relay 27 Spare/Heated Seat 2
28 Body Control Module 1/Spare Number Usage
*29 AFS AHL/ Pedestrian
Protection
30 Passenger Window Switch
31 Body Control Module 7
32 Sunroof
33 Not Used
34 AOS Display/MIL Ignition
35 Rear Electrical Center Ignition
36 Spare PT Fuse
37 Oxygen Sensor
38 Ignition Coils/ Injectors
39 Ignition Coils/ Injectors/Spare
40 Engine Control Module Number Usage
41 Fuel Heater
*42 AIR Solenoid Relay
43 Washer
44 Not Used
45 Front Washer Relay
46 Not Used
47 Instrument Panel Body Ignition
48 Fuel System Control Module
Ignition
49 Heated Steering Wheel
*50 Steering Column Lock
*51 Coolant Pump
*52 Coolant Pump Relay
53 Air Conditioning Compressor Clutch

Black plate (39,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
Vehicle Care 10-39
Number Usage*1 Electronic Limited Slip Differential/DC
DC Transformer
2 Left Window
3 Body Control Module 8
*4 A/C Inverter 5 Passive Entry Passive Start
Battery 1
6 Body Control Module 4
7 Heated Mirrors
8 Amplifier
9 Rear Window Defogger
10 Glass Break
*11 Trailer Connector 12 OnStar (If Equipped)
13 Right Window Number Usage
14 Electric Parking Brake
15 Not Used
16 Trunk Release
*17 Run Relay
*18 Logistics Relay
*19 Logistics Fuse
20 Rear Window Defogger Relay
21 Mirror Window Module
22 Pedestrian Protection
23 Canister Vent
24 Pedestrian Protection
*25 Rear Vision Camera
*26 Front Ventilated Seats
*27 SBZA/LDW/EOCM Number Usage
*28 Trailer/Sunshade
*29 Rear Heated Seats
*30 Semi-Active Damping System
*31 Transfer Case Control Module/
Electronic Limited
Slip Differential
32 Theft Module/ Universal Garage
Door Opener/Rain
Sensor
*33 UPA
*34 Radio/DVD
35 Not Used
*36 Trailer
37 Fuel Pump/Fuel System Control
Module
38 Not Used
39 Not Used

Black plate (40,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
10-40 Vehicle Care
Number Usage40 Not Used
41 Not Used
*42 Memory Seat Module
43 Body Control Module 3
44 Not Used
45 Battery Regulated Voltage Control
46 Engine Control Module Battery
47 Not Used
48 Not Used
*49 Trailer Module 50 Door Lock Security
51 Rear Closure Release
52 Not Used
53 Not Used
54 Door Lock Security Number Usage
55 Not Used
*56 Fuel Door
* OptionalWheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much flexing.
There could be a blowout
(Continued)

Black plate (46,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
10-46 Vehicle Care
(5) Rim Diameter:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are automatic transmission, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch) before a tire has built up heat
from driving. See
Tire Pressure
on page 10-48.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9-11.

Black plate (49,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
Vehicle Care 10-49
{Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from
road hazards. The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity.
For additional information
regarding how much weight the
vehicle can carry, and an
example of the Tire and Loading
Information label, see
Vehicle
Load Limits on page 9-11. How
the vehicle is loaded affects
vehicle handling and ride
comfort. Never load the vehicle
with more weight than it was
designed to carry.
When to Check
Check the tires once a month
or more. How to Check
Use a good quality pocket-type
gauge to check the tire
pressure. Proper tire inflation
cannot be determined by looking
at the tire. Check the tire
inflation pressure when the tires
are cold, meaning the vehicle
has not been driven for at least
three hours or no more than
1.6 km (1 mi).
Remove the valve cap from the
tire valve stem. Press the tire
gauge firmly onto the valve to
get the pressure measurement.
If the cold tire inflation pressure
matches the recommended
pressure on the Tire and
Loading Information label, no
further adjustment is necessary.
If the inflation pressure is low,
add air until the recommended
pressure is reached. If the
inflation pressure in high, press
on the metal stem in the center

Black plate (51,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
Vehicle Care 10-51
tire inflation pressure label, you
should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a
tire pressure monitoring system
(TPMS) that illuminates a low tire
pressure telltale when one or more
of your tires is significantly
under-inflated.
Accordingly, when the low tire
pressure telltale illuminates, you
should stop and check your tires as
soon as possible, and inflate them
to the proper pressure. Driving on a
significantly under-inflated tire
causes the tire to overheat and can
lead to tire failure. Under-inflation
also reduces fuel efficiency and tire
tread life, and may affect the
vehicle's handling and stopping
ability.
Please note that the TPMS is not a
substitute for proper tire
maintenance, and it is the driver's
responsibility to maintain correct tire
pressure, even if under-inflation hasnot reached the level to trigger
illumination of the TPMS low tire
pressure telltale.
Your vehicle has also been
equipped with a TPMS malfunction
indicator to indicate when the
system is not operating properly.
The TPMS malfunction indicator is
combined with the low tire pressure
telltale. When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as
long as the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be
able to detect or signal low tire
pressure as intended. TPMS
malfunctions may occur for a variety
of reasons, including the installation
of replacement or alternate tires or
wheels on the vehicle that prevent
the TPMS from functioning properly.
Always check the TPMS malfunction
telltale after replacing one or more
tires or wheels on your vehicle toensure that the replacement or
alternate tires and wheels allow the
TPMS to continue to function
properly.
See
Tire Pressure Monitor
Operation on page 10-51.
See Radio Frequency Statement on
page 13-15.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmits the tire
pressure readings to a receiver
located in the vehicle.

Black plate (72,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
10-72 Vehicle Care
.Solvents, alcohols, fuels,
or other harsh cleaners.
.Ice scrapers or other hard items.
.Aftermarket appearance caps or
covers while the lamps are
illuminated, due to excessive
heat generated.
{Caution
Failure to clean lamps properly
can cause damage to the lamp
cover that would not be covered
by the vehicle warranty.
{Caution
Using wax on low gloss black
finish stripes can increase the
gloss level and create a
non-uniform finish. Clean low
gloss stripes with soap and
water only.
Air Intakes
Clear debris from the air intakes,
between the hood and windshield
when washing the vehicle.
Windshield and Wiper Blades
Clean the outside of the windshield
with glass cleaner.
Clean rubber blades using a lint-free
cloth or paper towel soaked with
windshield washer fluid or a mild
detergent. Wash the windshield
thoroughly when cleaning the
blades. Bugs, road grime, sap, and
a buildup of vehicle wash/wax
treatments may cause wiper
streaking.
Replace the wiper blades if they are
worn or damaged. Damage can be
caused by extreme dusty
conditions, sand, salt, heat, sun,
snow, and ice.
Weatherstrips
Apply Dielectric silicone grease on
weatherstrips to make them last
longer, seal better, and not stick orsqueak. Lubricate weatherstrips at
least once a year. Hot, dry climates
may require more frequent
application. Black marks from
rubber material on painted surfaces
can be removed by rubbing with a
clean cloth. See
Recommended
Fluids and Lubricants on
page 11-13.
Tires
Use a stiff brush with tire cleaner to
clean the tires.
{Caution
Using petroleum-based tire
dressing products on the vehicle
may damage the paint finish and/
or tires. When applying a tire
dressing, always wipe off any
overspray from all painted
surfaces on the vehicle.

Black plate (73,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
Vehicle Care 10-73
Wheels and Trim—Aluminum
or Chrome
Use a soft, clean cloth with mild
soap and water to clean the wheels.
After rinsing thoroughly with clean
water, dry with a soft, clean towel.
A wax may then be applied.
{Caution
Chrome wheels and other chrome
trim may be damaged if the
vehicle is not washed after driving
on roads that have been sprayed
with magnesium, calcium,
or sodium chloride. These
chlorides are used on roads for
conditions such as ice and dust.
Always wash the chrome with
soap and water after exposure.
{Caution
To avoid surface damage, do not
use strong soaps, chemicals,
abrasive polishes, cleaners,
brushes, or cleaners that contain
acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year. Inspect power steering for proper
hook-up, binding, leaks, cracks,
chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
fuel door hinge unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
At least twice a year, Spring and
Fall, use plain water to flush dirt and
debris from the vehicle's underbody.
Your dealer or an underbody car
washing system can do this. If not
removed, rust and corrosion can
develop.

Black plate (2,1)Cadillac CTS Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081492) - 2014 - CRC 2nd Edition - 11/18/13
11-2 Service and Maintenance
technicians, the dealer is the place
for routine maintenance such as oil
changes and tire rotations and
additional maintenance items like
tires, brakes, batteries, and wiper
blades.
{Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered
by the vehicle warranty.
Maintenance intervals, checks,
inspections, recommended fluids,
and lubricants are important to
keep the vehicle in good working
condition.
The Tire Rotation and Required
Services are the responsibility of the
vehicle owner. It is recommended to
have your dealer perform these
services every 12 000 km/7,500 mi.
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy,
and reduces vehicle emissions. Because of the way people use
vehicles, maintenance needs vary.
There may need to be more
frequent checks and services. The
Additional Required Services -
Normal are for vehicles that:
.Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. See
Vehicle Load Limits
on page 9-11.
.Are driven on reasonable road
surfaces within legal driving
limits.
.Use the recommended fuel. See
Fuel on page 9-60.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
.Mainly driven in heavy city traffic
in hot weather.
.Mainly driven in hilly or
mountainous terrain.
.Frequently towing a trailer.
.Used for high speed or
competitive driving.
.Used for taxi, police, or delivery
service.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.
{Warning
Performing maintenance work can
be dangerous and can cause
serious injury. Perform
maintenance work only if the
required information, proper tools,
and equipment are available.
If they are not, see your dealer to
have a trained technician do the
work. See Doing Your Own
Service Work on page 10-3.