2009 CADILLAC DTS climate control

Seats and Restraint System............................. 1-1
Head Restraints
......................................... 1-2
Front Seats
............................................... 1-3
Rear Seats
..............................................1-10
Safety Belts
.............................................1-12
Child Restraints
.......................................1-33
Airbag System
.........................................1-55
Restraint System Check
............................1-70
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-20
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-38
Object Detection Systems
..........................2-42
OnStar
®System
......................................2-51
Universal Home Remote System
................2-55
Storage Areas
.........................................2-62
Sunroof
..................................................2-64
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-40
Warning Lights, Gages, and Indicators
........3-50Driver Information Center (DIC)
..................3-67
Audio System(s)
.......................................3-95
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-26
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-43
Bulb Replacement
....................................5-46
Windshield Wiper Blade Replacement
.........5-46
Tires
......................................................5-48
Appearance Care
.....................................5-86
Vehicle Identication
.................................5-94
Electrical System
......................................5-94
Capacities and Specications
...................5-103
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-15
Vehicle Data Recording and Privacy
...........7-17
Index................................................................ 1
2009 Cadillac DTS Owner ManualM

To replace the battery:
1. Separate the transmitter with a at, thin object
inserted into the notch, located above the
metal base.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery, positive side facing up.
Replace with a CR2032 or equivalent battery.
4. Reassemble the transmitter.
Remote Vehicle Start
The remote vehicle starting feature allows you to start
the engine from outside of the vehicle. It also starts
up the vehicle’s automatic climate control system.
When the remote start system is active, the climate
control system will heat and cool the inside of the
vehicle according to the previous settings of the
system before turning the vehicle off. The rear window
defogger will be turned on by the climate control
system when it is cold outside. If the vehicle has heated
seats, they will also turn on when it is cold outside.
SeeHeated and Cooled Seats on page 1-5for additional
information. Cooled seats are not activated during a
remote start. Normal operation of the climate control
system will return after the key is turned to ON/RUN.
SeeDual Climate Control System on page 3-40.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require
a person using remote start to have the vehicle in
view when doing so. Check local regulations for
any requirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is
low on fuel. Your vehicle may run out of fuel.
2-7

Trunk
{CAUTION:
Exhaust gases can enter the vehicle if it is driven
with the liftgate, trunk/hatch open, or with any
objects that pass through the seal between the
body and the trunk/hatch or liftgate. Engine
exhaust contains Carbon Monoxide (CO) which
cannot be seen or smelled. It can cause
unconsciousness and even death.
If the vehicle must be driven with the liftgate, or
trunk/hatch open:
Close all of the windows.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
If the vehicle is equipped with a power liftgate,
disable the power liftgate function.
For more information about carbon monoxide,
seeEngine Exhaust on page 2-36.
Remote Trunk Release
G
(Remote Trunk Release):The remote trunk
release button is located to the left of the steering
wheel next to the instrument panel brightness control.
Press the button to open the trunk. The vehicle must be
in P (Park) or N (Neutral) and the valet lockout switch
must be off to use this button.
You can also press the button with the trunk symbol on
the RKE transmitter to open the trunk. To disable
this feature, seeValet Lockout Switch on page 2-20.
The trunk can be accessed using the Rear Seat
Pass-Through. See “Rear Seat Pass-Through” following
this section.
2-13

Park Tilt Mirrors
If your vehicle is equipped with memory mirrors,
it is capable of performing the park tilt mirror feature.
This feature allows the driver and passenger side
mirror to tilt to a factory programmed position when
the vehicle is in R (Reverse). This feature may be
useful in allowing you to view the curb when you are
parallel parking.
When the vehicle is shifted out of R (Reverse) and
either a ve-second delay has occurred, or the
ignition is turned to LOCK/OFF, the driver and
passenger side mirror will return to its original
position.
This feature can be enabled/disabled through
the Driver Information Center (DIC). SeeDIC
Vehicle Customization on page 3-86for more
information.
Outside Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you could
hit a vehicle on the right. Check the inside mirror or
glance over your shoulder before changing lanes.
The passenger side mirror is convex shaped. A convex
mirror’s surface is curved so more can be seen from
the driver seat.
Outside Heated Mirrors
=(Rear Window Defogger):Press to heat the mirrors.
See “Rear Window Defogger” underDual Climate Control
System on page 3-40for more information.
Side Blind Zone Alert (SBZA)
If the vehicle has the Side Blind Zone Alert (SBZA)
system, seeSide Blind Zone Alert (SBZA) on page 2-45.
2-41

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Power Tilt Wheel and Telescopic
Steering Column.........................................3-7
Heated Steering Wheel...................................3-7
Turn Signal/Multifunction Lever.........................3-8
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Forward Collision Alert (FCA) System................3-9
Flash-to-Pass...............................................3-13
Windshield Wipers........................................3-13
Rainsense™ II Wipers...................................3-14
Windshield Washer.......................................3-15
Cruise Control..............................................3-16
Adaptive Cruise Control.................................3-19
Exterior Lamps.............................................3-29
Wiper Activated Headlamps............................3-32
Headlamps on Reminder................................3-33
Daytime Running Lamps (DRL).......................3-33
Fog Lamps ..................................................3-34
Cornering Lamps..........................................3-34
Exterior Lighting Battery Saver........................3-34
Instrument Panel Brightness...........................3-34Courtesy Lamps...........................................3-35
Entry Lighting...............................................3-35
Parade Dimming...........................................3-35
Reading Lamps............................................3-35
Footwell Lamps............................................3-36
Battery Load Management.............................3-36
Electric Power Management...........................3-36
Inadvertent Power Battery Saver.....................3-37
Battery Run-Down Protection..........................3-37
Accessory Power Outlet(s).............................3-38
Ashtray(s)....................................................3-39
Analog Clock...............................................3-39
Climate Controls............................................3-40
Dual Climate Control System..........................3-40
Outlet Adjustment.........................................3-46
Rear Climate Control System.........................3-46
Passenger Compartment Air Filter...................3-48
Warning Lights, Gages, and Indicators............3-50
Instrument Panel Cluster................................3-51
Speedometer and Odometer...........................3-52
Tachometer.................................................3-52
Safety Belt Reminders...................................3-53
Airbag Readiness Light..................................3-54
Passenger Airbag Status Indicator...................3-55
Charging System Light..................................3-56
Section 3 Instrument Panel
3-1

The main components of the instrument panel are the following:
A.Outlet Adjustment on page 3-46.
B.Driver Information Center (DIC) on page 3-67.
C.Exterior Lamps on page 3-29.
D.Instrument Panel Cluster on page 3-51.
E.Horn on page 3-6.
F.Audio Steering Wheel Controls on page 3-127.
G.Ultrasonic Front and Rear Parking Assist (UFRPA)
on page 2-42andAdaptive Cruise Control on
page 3-19(If Equipped).
H.Analog Clock on page 3-39.
I.Hazard Warning Flashers on page 3-6.
J.Audio System(s) on page 3-95.
K. Trunk Release Button. SeeTrunk on page 2-13.
L.Instrument Panel Brightness on page 3-34.
M.Lane Departure Warning (LDW) on page 2-49.
N.Turn Signal/Multifunction Lever on page 3-8.O.Hood Release on page 5-11.
P.Parking Brake on page 2-32.
Q.Heated Steering Wheel on page 3-7(If Equipped).
R.Cruise Control on page 3-16orAdaptive Cruise
Control on page 3-19.
S.Tilt Wheel on page 3-6.Power Tilt Wheel
and Telescopic Steering Column on page 3-7
(If Equipped).
T.Dual Climate Control System on page 3-40.
U. Traction Control System Button (Console-Shift
Vehicles). SeeTraction Control System (TCS)
on page 4-6.
V. Shift Lever. SeeAutomatic Transmission Operation
on page 2-29.
W.Accessory Power Outlet(s) on page 3-38.
X.Glove Box on page 2-62.Valet Lockout Switch on
page 2-20.
3-5

Headlamps on Reminder
A warning chime will sound if the exterior lamp control
is left on in either the headlamp or parking lamp position
and the driver’s door is opened with the ignition off.
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
Fully functional daytime running lamps are required
on all vehicles rst sold in Canada.
The DRL system makes the turn signal lamps come on
when the following conditions are met:
It is still daylight and the ignition is on.
The exterior lamp control is in the off position.
The transmission is not in P (Park)
(United States only).
The light sensor is covered or not detecting light.
See “Sensors” underDual Climate Control System
on page 3-40.
When DRL are on, no other exterior lamps such as the
parking lamps, taillamps, etc. will be on when the DRL
are being used. The instrument panel will not be lit
up either.When automatic lighting is on and it is dark enough
outside, the turn signal lamps turn off and normal
low-beam headlamp operation occurs.
When automatic lighting is on and it is bright enough
outside, the regular lamps go off, and the DRL takes over.
If the vehicle is started in a dark garage, the automatic
headlamp system comes on immediately. Once you
leave the garage, it will take approximately one minute
for the automatic headlamp system to change to DRL if
there is light outside. During that delay, the instrument
panel cluster may not be as bright as usual. Make sure
the instrument panel brightness knob is in the full bright
position. SeeInstrument Panel Brightness on page 3-34.
Turning on automatic lighting or the headlamps will
deactivate the DRL. If the parking lamps or the fog lamps
were turned on instead, the DRL will still deactivate.
To idle the vehicle with the DRL off at night, turn off
automatic lighting and shift the transmission into P (Park).
Placing the vehicle in P (Park) disables the DRL. The
DRL will stay off until the vehicle is shifted out of P (Park).
To drive the vehicle with the DRL off, turn off automatic
lighting and manually turn on the parking lamps or
fog lamps, if the vehicle has them.
The regular headlamp system should be turned on
when needed.
3-33

Footwell Lamps
For vehicles with footwell lamps, they are located
under the instrument panel and at the rear of the
front seats. These lamps provide soft light to the front
and rear oor areas. They dim with the instrument
panel cluster lights.
Footwell lighting brightness can be adjusted with the
instrument panel brightness control located below the
exterior lamps control. SeeInstrument Panel Brightness
on page 3-34. The footwell lights will turn off before
the instrument panel lights are at their lowest level of
brightness.
Battery Load Management
This feature monitors the vehicle’s electrical load and
determines when the battery is in a heavy discharge
condition. During times of high electrical loading, the
engine may idle at a higher revolutions per minute (rpm)
setting than normal to make sure the battery charges.
High electrical loads may occur when several of the
following are on: headlamps, high beams, fog lamps,
rear window defogger, the climate control fan at high
speeds, heated seats and engine cooling fans.If the battery continues to discharge, even with the
engine idling at a higher rpm setting, some electrical
loads will automatically be reduced. When this occurs,
the rear window defogger may take slightly longer
to clear the glass, the heated seats may not get as
warm as they usually do and the climate control fan
may cut back to a lower speed. For more battery
saving information, see “Battery Saver Active Message”
underDIC Warnings and Messages on page 3-73.
Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery’s temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery’s state of charge is low, the voltage
is raised slightly to quickly bring the charge back up.
When the state of charge is high, the voltage is lowered
slightly to prevent overcharging. If the vehicle has a
voltmeter gage or a voltage display on the Driver
Information Center (DIC), you may see the voltage
move up or down. This is normal. If there is a problem,
an alert will be displayed.
3-36