2009 CADILLAC STS fuel

Fuel Gage
The fuel gage shows
approximately how much
fuel is in the fuel tank.
It works only when
the engine is on.
An arrow on the fuel gage indicates the side of the
vehicle the fuel door is on.If the fuel supply gets low, the “FUEL LEVEL LOW”
message appears on the Driver Information Center (DIC)
and a single chime sounds. SeeDIC Warnings and
Messages on page 3-79for more information.
All of the following 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.
3-71

DIC Buttons (Base Level)
If your vehicle does
not have a Head-Up
Display (HUD), these
are the buttons for the DIC.
«4ª(Information):Press the top or bottom of this
button to scroll through the available vehicle information
displays which include digital speed display, if your
vehicle has this feature, fuel range, fuel economy,
fuel used, average speed, timer, battery voltage, tire
pressure, and engine oil life, if your vehicle has this
feature.If you have an STS-V, the DIC also has additional vehicle
information displays which include engine boost, engine
oil temperature, oil pressure, and transmission uid
temperature.
See “MPH (km)” later in this section for more information
on the digital speed display.
AB
300 (Trip Information):Press the top of this
button to scroll through the odometer, trip odometer A
and trip odometer B. Press and hold the bottom of
this button to reset each trip odometer back to zero.
4// (Reset):Press this button to reset certain DIC
features and to acknowledge DIC warning messages
and clear them from the DIC display.
EM (English/Metric):Press this button to change the
display from English to metric.
3-73

DIC Buttons (Uplevel)
If the vehicle has a HUD,
these are the buttons for
the DIC.
«4ª(Information):Press the top or bottom of this
button to scroll through the available vehicle information
displays which include digital speed display, if your
vehicle has this feature, fuel range, fuel economy,
fuel used, average speed, timer, battery voltage, tire
pressure, engine oil life, if your vehicle has this feature,
and display units. See “MPH (km)” later in this section
for more information on the digital speed display.
«~ª(Head-Up Display):Press this button to
change the position of the HUD on the windshield. Press
the top part of the button to move the HUD image up.
Press the bottom part of the button to move the HUD
image down.To adjust the brightness of the HUD image, seeHead-Up
Display (HUD) on page 3-43.
For information on adjusting the instrument panel
brightness, seeInstrument Panel Brightness on
page 3-40.
4// (Reset):Press this button to reset certain DIC
features and to acknowledge DIC warning messages
and clear them from the DIC display.
3(Trip Information):Press this button to scroll
through the odometer, trip odometer A and trip
odometer B. To reset each trip odometer, either press
the reset button or press and hold the trip information
button until the trip odometer displayed returns to zero.
Information Display Menu Items
The following display menu items can be displayed by
pressing the information button.
MPH (km/h)
If the vehicle has this display, it shows the vehicle’s
speed digitally in either miles per hour (mph) or
kilometers per hour (km/h).
3-74

MILES RANGE (km RANGE)
This display shows the approximate number of
remaining miles (mi) or kilometers (km) you can drive
without relling the fuel tank. This estimate is based
on the current driving conditions and will change if the
driving conditions change. For example, if you are driving
in traffic making frequent stops, the display may read one
number, but if you enter the freeway, the number may
change even though you still have the same amount of
fuel in the fuel tank. This is because different driving
conditions produce different fuel economies. Generally,
freeway driving produces better fuel economy than city
driving.
Once the range drops below about 40 miles (64 km)
remaining, the display will show LOW RANGE.
If your vehicle is low on fuel, the Fuel Level Low
message will be displayed. See “Fuel Level Low”
underDIC Warnings and Messages on page 3-79
for more information.
MPG AVG (L/100 km AVG)
This display shows the approximate average miles per
gallon (mpg) or liters per 100 kilometers (L/100 km).
This number is calculated based on the number of
mpg (L/100 km) recorded since the last time this display
was reset. To reset MPG AVG, press the reset button.
The display will return to zero.
MPG INST (L/100 km INST)
This display shows the current fuel economy. This
number reects only the fuel economy that the vehicle
has right now and will change frequently as driving
conditions change. Unlike average fuel economy, this
display cannot be reset.
GAL FUEL USED (L FUEL USED)
This display shows the number of gallons (gal) or
liters (L) of fuel used since the last reset of this display.
To reset GAL FUEL USED, press the reset button.
The display will return to zero.
AVG MPH (AVG km/h)
This display shows the average speed of the vehicle
in miles per hour (mph) or kilometers per hour (km/h).
This average is calculated based on the various vehicle
speeds recorded since the last reset of this display.
To reset AVG MPH, press the reset button. The display
will return to zero.
HUD Speed Advisor ON/OFF
(On Vehicles with HUD)
If the vehicle has HUD, you can choose to have the
Speed Limit/Speed Advisory display appear in the HUD.
The DIC will toggle between ON and OFF. Press the
reset button to make your selection. SeeHead-Up
Display (HUD) on page 3-43for more information.
3-75

CHECK BRAKE FLUID
This message displays if the ignition is on to inform the
driver that the brake uid level is low. Have the brake
system serviced by your dealer/retailer as soon as
possible. SeeBrake System Warning Light on page 3-62
for more information.
CHECK GAS CAP
This message displays when the fuel cap has not been
fully tightened. Recheck the fuel cap to ensure that it
is on and tightened properly.
CHECK TIRE PRESSURE
This message displays when the pressure in one or
more of the vehicle’s tires needs to be checked. If a tire
pressure message appears on the DIC, stop as soon as
you can. Have the tire pressures checked and set to
those shown on the Tire Loading Information label. See
Tires on page 5-54,Loading the Vehicle on page 4-24,
andInflation - Tire Pressure on page 5-64. The DIC also
shows the tire pressure values. SeeDIC Operation and
Displays on page 3-72. If the tire pressure is low, the low
tire pressure warning light comes on. SeeTire Pressure
Light on page 3-65.
CHECK WASHER FLUID
This symbol appears with
this message.
This message displays when the windshield washer
uid is low. Fill the windshield washer uid reservoir
as soon as possible. SeeWindshield Washer Fluid
on page 5-38for more information.
CLEAN RADAR
This message displays when the Adaptive Cruise
Control system is disabled because the radar is blocked
and cannot detect vehicles in your path. It may also
activate during heavy rain or due to road spray. To clean
the system, see “Cleaning the System” underAdaptive
Cruise Control on page 3-20.
3-82

ENGINE PROTECTION REDUCED
RPM’S (Revolutions Per Minute)
This message displays when your vehicle is in an
overheated engine operating mode. If this message
appears, the vehicle has determined that continued
operation at the existing engine speed may lead to
engine overheating. The vehicle automatically limits
engine RPMs to prevent engine overheating. You may
notice the vehicle upshifting early or reduced speeds
while this message is displayed. When the engine oil
returns to a safe operating temperature, this message
clears from the DIC and the vehicle returns to normal
operation. Your vehicle does not require service when
this message is displayed.
FUEL LEVEL LOW
This symbol appears with
this message.
This message displays and a chime sounds if the fuel
level is low. Refuel as soon as possible. SeeFuel Gage
on page 3-71andFuel on page 5-5for more information.
HOOD AJAR
This symbol appears with
this message.
This message displays when the hood is not closed
completely. Make sure that the hood is closed
completely. SeeHood Release on page 5-11.
ICE POSSIBLE
This message displays when the outside temperature
is cold enough to create icy road conditions. Adjust your
driving accordingly.
KEY FOB BATTERY LOW
This message displays when the battery in the keyless
access transmitter is low. Replace the battery in the
transmitter. See “Battery Replacement” underKeyless
Access System Operation on page 2-5.
3-85

Before Leaving on a Long Trip
To prepare your vehicle for a long trip, consider having
it serviced by your dealer/retailer before departing.
Things to check on your own include:
Windshield Washer Fluid:Reservoir full? Windows
clean — inside and outside?
Wiper Blades:In good shape?
Fuel, Engine Oil, Other Fluids:All levels checked?
Lamps:Do they all work and are lenses clean?
Tires:Are treads good? Are tires inated to
recommended pressure?
Weather and Maps:Safe to travel? Have
up-to-date maps?
Highway Hypnosis
Always be alert and pay attention to your surroundings
while driving. If you become tired or sleepy, nd a
safe place to park your vehicle and rest.
Other driving tips include:
Keep the vehicle well ventilated.
Keep interior temperature cool.
Keep your eyes moving — scan the road ahead
and to the sides.
Check the rearview mirror and vehicle instruments
often.
4-19

Blizzard Conditions
Being stuck in snow can be in a serious situation.
Stay with the vehicle unless there is help nearby.
If possible, use theRoadside Service on page 7-7.
To get help and keep everyone in the vehicle safe:
Turn on theHazard Warning Flashers on page 3-6.
Tie a red cloth to an outside mirror.
{CAUTION:
Snow can trap engine exhaust under the vehicle.
This may cause exhaust gases to get inside.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in the snow:
Clear away snow from around the base of
your vehicle, especially any that is blocking
the exhaust pipe.
Check again from time to time to be sure
snow does not collect there.
CAUTION: (Continued)
CAUTION: (Continued)

Open a window about two inches on the side
of the vehicle that is away from the wind to
bring in fresh air.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that circulates the air inside the vehicle and
set the fan speed to the highest setting.
See Climate Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 2-36.
Snow can trap exhaust gases under your vehicle.
This can cause deadly CO (carbon monoxide) gas
to get inside. CO could overcome you and kill you.
You cannot see it or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking the exhaust
Run the engine for short periods only as needed to
keep warm, but be careful.
To save fuel, run the engine for only short periods as
needed to warm the vehicle and then shut the engine off
and close the window most of the way to save heat.
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