2007 CADILLAC CTS fuel pressure

Anti-Lock Brake System Warning Light...... 206
Traction Control System (TCS)
Warning Light........................................ 206
Engine Coolant Temperature Warning
Light (CTS)............................................ 207
Engine Coolant Temperature Gage............ 208
Tire Pressure Light (CTS-V Only).............. 208
Malfunction Indicator Lamp........................ 209
Oil Pressure Light..................................... 212
Sport Mode Light (Automatic
Transmission/CTS)................................. 213
Security Light............................................ 213
Fog Lamp Light......................................... 213
Lights On Reminder.................................. 213
Cruise Control Light.................................. 214
Highbeam On Light................................... 214
Fuel Gage................................................. 214
Message Center.......................................... 215
Message Center (CTS-V).......................... 215
Transmission Fluid Hot Message............... 219
Hot Coolant Temperature Warning
Message................................................ 219
Check Engine Oil Pressure Message......... 220Oil Temperature Warning Message............ 220
Tire Pressure Warning Message................ 221
One-to-Four Shift Message
(CTS-V Only)......................................... 222
Driver Information Center (DIC).................. 222
System Controls........................................ 223
Status of Vehicle Systems......................... 223
DIC Main Menu......................................... 228
DIC Warnings and Messages.................... 232
DIC Vehicle Personalization....................... 242
Audio System(s)......................................... 258
Setting the Time........................................ 259
Radio with CD........................................... 260
XM Radio Messages................................. 277
Navigation/Radio System........................... 279
Theft-Deterrent Feature............................. 279
Audio Steering Wheel Controls (CTS)........ 279
Audio Steering Wheel Controls (CTS-V).... 280
Radio Reception........................................ 282
Care of Your CDs..................................... 283
Care of the CD Player.............................. 283
Diversity Antenna System.......................... 284
XM™ Satellite Radio Antenna System....... 284
Section 3 Instrument Panel
164

Here are a few concerns some owners have had
about the fuel gage. All of these situations are
normal and do not indicate that anything is wrong
with the fuel gage:
At the gas station the gas pump shuts off
before the gage reads full.
The gage may change when you turn, stop
quickly or accelerate quickly.
It takes a little more or less fuel to ll the tank
than the gage indicated. For example, the gage
may have indicated that the tank was half full,
but it actually took a little more or less than half
the tank’s capacity to ll the tank.
Message Center
Message Center (CTS-V)
Your vehicle may have a message center that can
display information relating to powertrain uids, tire
pressures, vehicle dynamics, speedometer and
odometer information, and transmission status.
It also displays warning messages. There are
two different areas where message center
information will be displayed. One display is inside
of the tachometer and the other is inside of the
speedometer.These are the controls
for the message center.
They are located on
the left spoke of
the steering wheel.
The outboard switch (A and B) controls the display
of information inside of the tachometer. The
upper button (C) on the inboard switch controls
the display of information inside of the
speedometer. The lower button (D) on the inboard
switch turns the traction control on or off. See
Traction Control System (TCS) (CTS) on page 293
orTraction Control System (TCS) (CTS-V) on
page 295for more information.
215

Vehicle Information Menu
To access this menu, press the up or down arrow
on the INFO switch located to the right of the
display.
The following items are available when the ignition
is in ON. These items will not be available when
the ignition is in ACCESSORY. The tire pressure
menu items are only available if your vehicle
has the Tire Pressure Monitor (TPM) system:
OUTSIDE TEMP
MI TRIP A (KM TRIP A)*
MI TRIP B (KM TRIP B)*
MILES RANGE (KM RANGE)
MPG AVG (L/100 KM AVG)*
MPG INST (L/100 KM INST)
GAL FUEL USED (L FUEL USED)*
AVG MPH (AVG KM/H)*
TIMER*
BATTERY VOLTS
ENGINE OIL LIFE*
TRANS FLUID LIFE* (Automatic
Transmission Only)
PSI LF TIRE (KPA LF TIRE)
PSI RF TIRE (KPA RF TIRE)
PSI RR TIRE (KPA RR TIRE)
PSI LR TIRE (KPA LR TIRE)
BLANK LINE
*These items can be reset. Each one must be
reset individually. For a detailed description of the
menu items and how to reset them, see “Vehicle
Information Menu Item Descriptions” later in
this section.
You can view any of these items at any time, but
only one item can be displayed at a time.
224

Service........................................................ 332
Accessories and Modications................... 332
California Proposition 65 Warning.............. 333
Doing Your Own Service Work.................. 333
Adding Equipment to the Outside of
Your Vehicle.......................................... 334
Fuel............................................................. 334
Gasoline Octane........................................ 334
Gasoline Specications.............................. 335
California Fuel........................................... 335
Additives................................................... 336
Fuels in Foreign Countries........................ 336
Filling the Tank......................................... 337
Filling a Portable Fuel Container............... 339
Checking Things Under the Hood.............. 340
Hood Release........................................... 341
Engine Compartment Overview.................. 342
Engine Oil................................................. 346
Engine Oil Life System.............................. 349
Engine Air Cleaner/Filter............................ 351
Automatic Transmission Fluid.................... 353
Manual Transmission Fluid........................ 354Hydraulic Clutch........................................ 356
Engine Coolant.......................................... 356
Coolant Surge Tank Pressure Cap............ 360
Engine Overheating................................... 360
Overheated Engine Protection
Operating Mode..................................... 362
Cooling System......................................... 363
Power Steering Fluid................................. 368
Windshield Washer Fluid........................... 369
Brakes...................................................... 371
Battery...................................................... 375
Jump Starting............................................ 376
Rear Axle.................................................... 382
Headlamp Aiming........................................ 383
Bulb Replacement....................................... 386
High Intensity Discharge (HID) Lighting..... 386
Halogen Bulbs........................................... 386
Front Turn Signal and Fog Lamps............. 387
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps................................. 388
Back-Up and License Plate Lamps............ 389
Replacement Bulbs................................... 389
Section 5 Service and Appearance Care
329

Engine Oil
There is an oil pressure
light in the instrument
cluster and an Oil
Pressure Low - Stop
Engine message on the
Driver Information
Center (DIC).
If the light and/or message appear, check the
engine oil level right away. For more information,
see “Oil Pressure Low - Stop Engine” under
DIC Warnings and Messages on page 232andOil
Pressure Light on page 212. You should check
the engine oil level regularly; this is an added
reminder.
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be
on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 342
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil
several minutes to drain back into the oil
pan. If you do not do this, the oil dipstick might
not show the actual level.
2. Pull out the dipstick and clean it with a paper
towel or cloth, then push it back in all the
way. Remove it again, keeping the tip down,
and check the level.
346

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. SeeInation - Tire Pressure
on page 402.
Curb Weight:This means 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. See
Loading Your Vehicle on page 321.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 321.
GAWR RR:Gross Axle Weight Rating for the
rear axle. SeeLoading Your Vehicle on page 321.Intended Outboard Sidewall:The side of an
asymmetrical tire, that must always face outward
when mounted on a vehicle.
Kilopascal (kPa):The metric unit for air pressure.
Light Truck (LT-Metric) Tire:A tire used on
light duty trucks and some multipurpose passenger
vehicles.
Load Index:An assigned number ranging from
1 to 279 that corresponds to the load carrying
capacity of a tire.
Maximum Ination Pressure:The maximum air
pressure to which a cold tire may be inated.
The maximum air pressure is molded onto
the sidewall.
Maximum Load Rating:The load rating for a tire
at the maximum permissible ination pressure
for that tire.
Maximum Loaded Vehicle Weight:The sum of
curb weight, accessory weight, vehicle capacity
weight, and production options weight.
398

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 Tire and Loading Information label is attached to
the vehicle’s center pillar, below the driver’s
door latch. 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, see
Loading Your Vehicle on page 321. How you load
your vehicle affects vehicle handling and ride
comfort, never load your vehicle with more weight
than it was designed to carry.
402

If a low tire pressure condition is detected, the
TPMS will display the Check Tire Pressure
message on the DIC or message center and, at the
same time, illuminate the low tire pressure warning
symbol on the instrument panel cluster.
Each tire, including the spare (if provided), should
be checked monthly when cold and inated to the
ination pressure recommended by the vehicle
manufacturer on the vehicle placard or tire ination
pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle
placard or tire ination pressure label, you should
determine the proper tire ination 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 signicantly
under-inated.Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires
as soon as possible, and inate them to the
proper pressure. Driving on a signicantly
under-inated tire causes the tire to overheat and
can lead to the tire failure. Under-ination 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-ination has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.
The Tire and Loading Information label shows the
size of your vehicle’s original tires and their
recommended cold ination pressures. See
Loading Your Vehicle on page 321, for the location
of the tire and loading information label. Also
seeInation - Tire Pressure on page 402.
The tire pressure warning light may come on in
cool weather when the vehicle is rst started, and
then turn off as you start to drive. This could
be an early indicator that the tire pressures are
getting low and need to be inated to the
proper pressure.
406