2006 CADILLAC DTS PROFESSIONAL fuel pump

If the fuel supply gets low, the Fuel Level Low message
will appear on the DIC and a single chime will sound.
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.
Driver Information Center (DIC)
The Driver Information Center (DIC) gives you the
status of many of your vehicle’s systems. The DIC
is also used to display warning/status messages. All
messages will appear in the DIC display located at
the bottom of the instrument panel cluster, below the
tachometer and speedometer. The DIC buttons are
located on the instrument panel, to the left of the
steering wheel.
The DIC comes on when the ignition is on. After a short
delay, the DIC will display the information that was
last displayed before the engine was turned off.
The top line of the DIC display shows the vehicle system
information and the warning/status messages. The
bottom line of the DIC display shows the odometer on
the left side. The bottom line of the DIC display also
shows a digital speedometer on the right side.
If a problem is detected, a warning message will appear
on the display. Be sure to take any message that
appears on the display seriously and remember that
clearing the message will only make the message
disappear, not correct the problem.
3-71

Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel re can
cause bad injuries. To help avoid injuries to
you and others, read and follow all the
instructions on the pump island. Turn off your
engine when you are refueling. Do not smoke
if you are near fuel or refueling your vehicle.
Keep sparks, ames, and smoking materials
away from fuel. Do not leave the fuel pump
unattended when refueling your vehicle — this
is against the law in some places. Keep
children away from the fuel pump; never let
children pump fuel.The tethered fuel cap is located behind a hinged fuel
door on the driver’s side of the vehicle.
To open the fuel door, apply pressure in the center of
the rear edge of the fuel door and it will pop 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.
While refueling, hang the tethered fuel cap from the
hook on the fuel door.
5-8

{CAUTION:
If you spill fuel and then something ignites it,
you could be badly burned. Fuel can spray out
on you if you open the fuel cap too quickly.
This spray can happen if your 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. See
Washing Your Vehicle on page 5-86.
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 3-66.The TIGHTEN GAS CAP message will be displayed on
the Driver Information Center (DIC) if the fuel cap is
not properly installed. SeeDIC Warnings and Messages
on page 3-76for more information.
{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 can get one for you.
If you get the wrong type, it may not t properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. SeeMalfunction Indicator Lamp on
page 3-66.
5-9

Filling a Portable Fuel Container
{CAUTION:
Never ll a portable fuel container while it is in
your vehicle. Static electricity discharge from
the container can ignite the gasoline vapor.
You can be badly burned and your vehicle
damaged if this occurs. To help avoid injury to
you and others:
Dispense gasoline 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 gasoline.
Checking Things Under
the Hood
{CAUTION:
An electric fan under the hood can start up
and injure you even when the engine is not
running. Keep hands, clothing, and tools away
from any underhood electric fan.
{CAUTION:
Things that burn can get on hot engine parts
and start a re. These include liquids like fuel,
oil, coolant, brake uid, windshield washer and
other uids, and plastic or rubber. You or
others could be burned. Be careful not to drop
or spill things that will burn onto a hot engine.
5-10

Fuses Usage
F9 Door Unlatch (Option)
F10 Switch Dimmer
F11 Fuel Pump
F12 Body Control Module Logic
F13 Airbag
F14 Auxiliary Power Outlets
F15 Driver’s Side Turn Signal
F16 Passenger Side Rear Turn Signal
F17 Not Used
F18Center High-Mounted Stoplamp,
Back-up Lamps
F19 Rear Door Locks
F20 Stoplamp (Option)
F21 Radio
F22 OnStar
®(Option)
F23Auxiliary Power Outlet, Cigarette
Lighter, Console
F24 Driver Door Module
F25 Passenger Door Module
F26 Trunk Release (Option)
F27 Heated/Cooled Seats (Option)
F28Engine Control Module,
Transmission Control Module
(ECM/TCM)
Fuses Usage
F29 Regulated Voltage Control Sense
F30 Not Used
F31 Instrument Panel Harness Module
F32 Rear Heated Seats (Option)
F33 Not Used
F34 Steering Wheel Illumination
F35 Body Harness Module
F36Memory Seat Module Logic, Right
Front Massage (Option)
F37 Object Detection Sensor
F38 Sunroof
F40 Shifter Solenoid (Option)
F41Retained Accessory Power,
Miscellaneous
F42 Driver’s Side Park Lamp
F43 Passenger’s Side Park Lamp
F44 Heated Steering Wheel (Option)
F45 Rear Climate Control
F46 Not Used
F47Heated/Cooled Seats, Ignition 3
(Option)
F48 Ignition Switch
F49 Not Used
5-99

Circuit
BreakersUsage
CB1Front Passenger’s Seat, Memory
Seat Module
CB2Driver’s Power Seat, Memory Seat
Module
CB3 Door Module, Power Windows
CB4Memory Seat Module, Tilt/
Telescoping Steering Wheel (Option)
Resistor Usage
F39 Terminating Resistor
Relays Usage
R1 Retained Accessory Power
R2 Park Lamps
Relays Usage
R3 Run (Option)
R4 Park Lamps (Option)
R5Front Heating, Ventilation, Air
Conditioning Fan
R6 Trunk Release
R7 Fuel Pump
R8Door Unlatch, License Plate
Lamp (Option)
R9 Door Lock
R10 Door Unlock
R11 Overhead Lamps (Option)
R12 Stoplamps (Option)
R13 Not Used
R14 Rear Defogger (Option)
R15Electronic Leveling Control
Compressor
5-100