2009 CADILLAC DTS display

Windshield Washer
{CAUTION:
In freezing weather, do not use your washer until
the windshield is warmed. Otherwise the washer
uid can form ice on the windshield, blocking your
vision.
J(Washer Fluid):Press and release this paddle,
located at the top of the turn signal/multifunction lever,
to spray washer uid on the windshield. The wipers
will clear the windshield and either stop or return to the
preset speed. For more washer cycles, press and hold
the paddle.
_(Heated Washer Fluid):The heated windshield
washer uid system, if the vehicle has this feature,
may be used to help clear ice, snow, tree sap, or bugs
from the windshield. Slide the control on the turn signal/
multifunction lever to this position and then release, to
activate the heated windshield washer uid system.
This activation initiates four heated wash/wipe cycles.
The rst heated wash/wipe cycle may take up to
40 seconds to occur, depending on outside temperature.
After the rst wash/wipe cycle, it may take up to
20 seconds for each of the remaining cycles. The heated
windshield washer uid system may be turned off at any
time by sliding the control on the turn signal/multifunction
lever to this position again.
When the heated windshield washer uid system is
activated under certain outside temperature conditions,
steam may ow out of the washer nozzles for a short
period of time before washer uid is sprayed. This is a
normal condition.
WASHER FLUID LOW ADD FLUID will be displayed on
the Driver Information Center (DIC) when the washer
uid is low. SeeDIC Warnings and Messages on
page 3-73.
3-15

Resuming a Set Speed
Suppose the cruise control is set at a desired speed
and then the brakes are applied. This shuts off the
cruise control. But it does not need to be reset.
Once the vehicle is traveling approximately 25 mph
(40 km/h) or more, press the +RES (resume/accelerate)
button to return to the desired preset speed. The cruise
light displays again.
The vehicle returns to and stays at the preset speed.
If you press and hold the +RES button, the vehicle
speed increases until the button is released or the brake
is applied. Do not hold in the +RES button, if you do
not want the vehicle speed to increase.
Increasing Speed While Using Cruise
Control
There are two ways to go to a higher speed:
Use the accelerator pedal to get to the higher
speed. Press the SET– button, then release
the button and the accelerator pedal. The vehicle
now cruises at the higher speed.
Press the +RES button. Hold it there until the
desired speed is reached, and then release
the button. To increase the vehicle speed in very
small amounts, briey press the +RES button
and then release it. Each time this is done, the
vehicle accelerates approximately 1 mph (1.6 km/h).
The accelerate feature only works after the cruise
control speed is set by pressing the SET– button.
Reducing Speed While Using Cruise
Control
There are two ways to reduce the vehicle speed while
using cruise control:
Press the SET– button until the lower speed
desired is reached, then release it.
To slow down in very small amounts, push the
SET– button briey. Each time this is done, the
vehicle slows down approximately 1 mph (1.6 km/h).
3-18

Engaging ACC With the Set Button
{CAUTION:
If you leave your Adaptive Cruise Control switch
on when you are not using cruise, you might hit a
button and go into cruise when you do not want
to. You could be startled and even lose control.
Keep the Adaptive Cruise Control switch off until
you want to use cruise control.
The set speed is selected by the driver. This is the
speed your vehicle will travel if there is no vehicle
detected in its path.
To set ACC, do the following:
1. Press the
]button.
2. Get up to the speed desired.
3. Press in the SET– button and release it.
4. Take your foot off the accelerator pedal.
Once ACC is set, it may immediately apply the brakes if
it detects a vehicle ahead is too close or moving slower
than your vehicle.The on symbol is located on the display at the top of the
instrument panel to the right of the driver. When the on
symbol is lit on the display, it indicates that ACC is active.
A message on the DIC will also display when ACC is
set. SeeDIC Warnings and Messages on page 3-73.
Keep in mind speed limits, surrounding traffic speeds,
and weather conditions when adjusting your set speed.
If the vehicle is in ACC when the traction control system
begins to limit wheel spin, the ACC will automatically
disengage. SeeTraction Control System (TCS) on
page 4-6andStabiliTrak
®System on page 4-6. When
road conditions allow you to safely use it again, the ACC
can be turned back on.
Increasing Set Speed While Using ACC
There are two ways to increase the set speed:
Use the accelerator to get to the higher speed.
Press the SET– button and then release the
button and the accelerator pedal. The vehicle
will now cruise at the higher speed.
Press the +RES button. Hold it there until the
desired set speed is displayed on the Driver
Information Center (DIC), then release the switch.
To increase the set speed in very small amounts,
move the switch briey to +RES. Each time this is
done, the set speed increases by 1 mph (1 km/h).
3-22

Alerting the Driver
The ACC alert symbol is
located on the display at
the top of the instrument
panel to the right of the
driver.
The alert symbol ashes and a warning beep sounds
when driver action may be required. If ACC is engaged,
the alert symbol will ash when:
ACC cannot apply sufficient braking because you
are approaching a vehicle too rapidly.
The vehicle speed drops below about
20 mph (32 km/h).
A temporary condition prohibits ACC from operating.
SeeDIC Warnings and Messages on page 3-73for
more information.
A malfunction is detected in the system. SeeDIC
Warnings and Messages on page 3-73for more
information.
SeeDefensive Driving on page 4-2.
{CAUTION:
Adaptive Cruise Control has only limited braking
ability to slow your vehicle. In some cases, Adaptive
Cruise Control may not have time to slow your
vehicle enough to avoid a collision. Be ready to
take action and apply the brakes yourself.
SeeDefensive Driving on page 4-2.
Approaching and Following a Vehicle
The vehicle ahead symbol
is located on the top of the
instrument panel to the
right of the driver.
The vehicle ahead symbol only appears when a vehicle
is detected in your path.
If this symbol does not appear, or disappears briey,
ACC will not respond to vehicles you may see ahead.
3-24

Courtesy Lamps
The courtesy lamps are located on the headliner above
the rear seat. These lamps come on by turning the
instrument panel brightness knob fully clockwise or when
any door is opened and it is dark outside. Puddle lamps
are located on the bottom of the front and rear door trim.
Professional vehicles have an additional dome lamp
and also opera lamps.
Entry Lighting
This feature turns on the courtesy lamps and the
backlighting for the door switches and the exterior lamp
control when a door is opened or if the remote keyless
entry transmitter unlock button is pressed. If activated
due to the transmitter, the lighting remains active for
about 40 seconds. Since the entry lighting system
uses the light sensor, it must be dark outside in order
for the courtesy lamps to turn on. The courtesy lamps
turn off approximately 25 seconds after the last door is
closed. They will dim to off if the ignition key is turned to
ON/RUN, or immediately deactivate if the power locks
are activated.
Parade Dimming
This feature prohibits dimming of the digital displays and
backlighting during daylight hours when the key is in
the ignition and the headlamps are on. This feature is
fully automatic. When the light sensor reads darkness
outside and the parking lamps are active, the digital
displays can be adjusted by turning the instrument panel
brightness knob counterclockwise to dim and clockwise
to brighten lighting.
Reading Lamps
The reading lamps are located on the overhead console
on the headliner and in the rear door opening. These
lamps come on automatically when any door is opened
and it is dark outside.
For manual operation, press the button to turn them on.
Press it again to turn them off.
If the reading lamps are left on, they automatically shut
off 10 minutes after the ignition has been turned off.
3-35

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

The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles.
This is because the generator (alternator) may not
be spinning fast enough at idle to produce all the
power that is needed for very high electrical loads.
A high electrical load occurs when several of the
following are on, such as: headlamps, high beams,
fog lamps, rear window defogger, climate control fan at
high speed, heated seats, engine cooling fans, trailer
loads, and loads plugged into accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s output
and the vehicle’s electrical needs. It can increase engine
idle speed to generate more power, whenever needed.
It can temporarily reduce the power demands of some
accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as BATTERY SAVER ACTIVE,
BATTERY VOLTAGE LOW, or LOW BATTERY. If this
message is displayed, it is recommended that the driver
reduce the electrical loads as much as possible. SeeDIC
Warnings and Messages on page 3-73.Inadvertent Power Battery Saver
This feature is designed to protect your vehicle’s battery
against drainage from the interior lamps, trunk lamp,
glove box lamp, or the garage door opener. When the
ignition is turned off, the power to these features will
automatically turn off after 10 minutes. Power will be
restored for an additional 10 minutes if any door or trunk
is opened, or the courtesy lamp switch is turned on.
Battery Run-Down Protection
This feature helps prevent the battery from being
drained, if the interior courtesy lamps, reading/map
lamps, visor vanity lamps or trunk lamp are accidentally
left on. If any of these lamps are left on, they
automatically turn off after 10 minutes, if the ignition
is off. The lamps will not come back on again until
one of the following occurs:
The ignition is turned on.
The exterior lamps control is turned off, then on
again.
The headlamps will time-out after 10 minutes, if they are
manually turned on with the ignition on or off.
3-37

Climate Controls
Dual Climate Control System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
A. Fan Control
B. Display
C. Air Delivery Mode
Control
D. Driver and
Passenger
Temperature
ControlsE. Air Conditioning
F. Outside Air or AUX
G. Recirculation
H. PASS (Passenger
Climate Control)
I. Rear Window
Defogger Dual Climate Control System
Dual Climate Control System for Vehicles with
Rear Climate Control
3-40