2009 CADILLAC CTS fuel cap

The fuel cap is behind a hinged fuel door on the
passenger side. To open the fuel door, push the
rearward center edge in and release and it will open.To remove the fuel cap, turn it slowly counterclockwise.
The fuel cap has a spring in it; if the cap is released
too soon, it will spring back to the right.
5-9

While refueling, hang the tethered fuel cap from the
hook on the fuel door.
{CAUTION:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.Be careful not to spill fuel. Do not top off or overll the
tank and wait a few seconds after you have nished
pumping before removing the nozzle. Clean fuel
from painted surfaces as soon as possible.
SeeWashing Your Vehicle on page 5-110.
When replacing the fuel cap, turn it clockwise until it
clicks. Make sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. This would allow fuel to evaporate
into the atmosphere. SeeMalfunction Indicator Lamp on
page 3-43.
The Tighten Gas Cap message in the Driver Information
Center (DIC) displays if the fuel cap is not properly
installed. SeeDIC Warnings and Messages on page 3-58
for more information.
5-10

{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get the
right type. Your dealer/retailer can get one for you. If
you get the wrong type, it may not t properly. This
may cause the malfunction indicator lamp to light
and may damage the fuel tank and emissions system.
SeeMalfunction Indicator Lamp on page 3-43.
Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it is in the
vehicle. Static electricity discharge from the
container can ignite the fuel vapor. You can be
badly burned and the vehicle damaged if this
occurs. To help avoid injury to you and others:
Dispense fuel only into approved containers.
Do not ll a container while it is inside a
vehicle, in a vehicle’s trunk, pickup bed,
or on any surface other than the ground.
Bring the ll nozzle in contact with the inside
of the ll opening before operating the nozzle.
Contact should be maintained until the lling
is complete.
Do not smoke while pumping fuel.
Do not use a cellular phone while
pumping fuel.
5-11

Tire Terminology and Denitions
Air Pressure:The amount of air inside the
tire pressing outward on each square inch of the
tire. Air pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, 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 that is
located 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 pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInflation - Tire Pressure on
page 5-69.
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 Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR
:Gross Vehicle Weight Rating. SeeLoading
the Vehicle on page 4-20.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading the Vehicle on page 4-20.
GAWR RR
:Gross Axle Weight Rating for the
rear axle. SeeLoading the Vehicle on page 4-20.
5-66

Ination - Tire Pressure
Tires need the correct amount of air pressure to
operate effectively.
Notice:Do not let anyone tell you that
under-ination or over-ination is all right. It is
not. If your tires do not have enough air
(under-ination), you can get the following:
Too much exing
Too much heat
Tire overloading
Premature or irregular wear
Poor handling
Reduced fuel economy
If your tires have too much air (over-ination),
you can get the following:
Unusual wear
Poor handling
Rough ride
Needless damage from road hazardsA vehicle specic Tire and Loading Information
label is attached to your vehicle. This label lists your
vehicle’s original equipment tires and shows the
correct ination pressures for your tires when they
are cold. The recommended cold tire ination
pressure, shown on the label, is the minimum
amount of air pressure needed to support your
vehicle’s maximum load carrying capacity.
For additional information regarding how much
weight your vehicle can carry, and an example of
the tire and loading information label, seeLoading
the Vehicle on page 4-20. How you load your
vehicle affects vehicle handling and ride comfort.
Never load your vehicle with more weight than it
was designed to carry.
When to Check
Check your tires once a month or more. Do not
forget to check the compact spare tire, if your
vehicle has one. The compact spare should be at
60 psi (420 kPa). For additional information
regarding the compact spare tire, seeCompact
Spare Tire on page 5-105.
5-69

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-14for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134aFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Cooling System
3.6L V6 Engine (VIN Code 7) 10.3 qt 9.7 L
3.6L V6 Engine (VIN Code V) 10.6 qt 10.0 L
6.2L V8 Engine — Cooling System 13.4 qt 12.7 L
6.2L V8 Engine — Intercooler Cooling System 3.2 qt 3.0 L
Engine Oil with Filter
3.6L V6 Engine 6.0 qt 5.7 L
6.2L V8 Engine 6.0 qt 5.7 L
Fuel Tank 18.0 gal 68.1 L
5-127

Audio System.................................................3-85
Audio Steering Wheel Controls....................3-126
Backglass Antenna.....................................3-128
Navigation/Radio System,
see Navigation Manual............................3-113
Radio Reception........................................3-127
Theft-Deterrent Feature...............................3-126
XM™ Satellite Radio Antenna System...........3-128
Audio System(s).............................................3-86
Automatic Transmission
Fluid..........................................................5-29
Operation...................................................2-36
B
Backglass Antenna........................................3-128
Battery..........................................................5-45
Electric Power Management..........................3-21
Exterior Lighting Battery Saver......................3-20
Run-Down Protection...................................3-22
Bluetooth
®....................................................3-113
Boost Gage...................................................3-50
Brake
Electric Parking...........................................2-44
Emergencies................................................ 4-5
Brake Fluid....................................................5-42
Brakes..........................................................5-42
System Warning Light..................................3-39
Braking........................................................... 4-4Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-30
Bulb Replacement...........................................5-57
Front Turn Signal and Fog Lamps..................5-58
Halogen Bulbs............................................5-57
Headlamp Aiming........................................5-53
High Intensity Discharge (HID) Lighting...........5-57
License Plate Lamps....................................5-59
Replacement Bulbs......................................5-59
Buying New Tires...........................................5-78
C
Calibration.....................................................3-56
California Fuel.................................................. 5-7
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners............................................... iii
Capacities and Specications..........................5-127
Carbon Monoxide...........................2-19, 2-50, 4-17
Care of
Safety Belts..............................................5-109
CD, MP3 .....................................................3-108
Center Console Storage Area...........................2-65
Chains, Tire...................................................5-84
Charging System Light....................................3-38
Check
Engine Lamp..............................................3-43
Checking Things Under the Hood......................5-12
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