2009 CADILLAC DTS Owners Manual

Other Messages
There are three messages that may appear on the
Driver Information Center (DIC). They are CLEAN
RADAR, RADAR CRUISE NOT READY and SERVICE
RADAR CRUISE. SeeDIC Warnings and Messages
on page 3-73.
Cleaning the System
The radar can become blocked by snow, ice, or dirt.
If so, you may need to turn off the engine and clean
the lens. See “Cleaning the System” underAdaptive
Cruise Control on page 3-19.
Flash-to-Pass
This feature lets you use the high-beam headlamps to
signal the driver in front of you that you want to pass.
The ash-to-pass feature will only work with the
headlamps on. It does not work with Daytime
Running Lamps (DRL).
Pull and hold the turn signal lever toward you to use.
If the headlamps are on low beam, pulling the turn signal
towards you will ash the high beams.
Windshield Wipers
Turn the band with the wiper symbol on it to control the
windshield wipers.
8(Mist):For a single wiping cycle, hold it on mist
until the wipers start, then release. The wipers stop after
one wipe. For more wipe cycles, hold the band longer.
6(Delay):Use to set the delay time between wipe
cycles. The wiper speed can be set for a long or short
delay between wipes. The closer the band is set to
the top of the lever, the shorter the delay.
6(Low Speed):For steady wiping at low speed.
1(High Speed):For high-speed wiping.
9(Off):Turns the wipers off.
Clear ice and snow from the wiper blades before
using them. If the wipers are frozen to the windshield,
carefully loosen or thaw them. If they become worn
or damaged, replace with new blades or blade inserts.
Heavy snow or ice can overload the wiper motor.
A circuit breaker will stop the motor until it cools.
The vehicle has wiper-activated headlamps. After the
windshield wipers have completed eight wipe cycles
within four minutes, the headlamps automatically turn on.
SeeWiper Activated Headlamps on page 3-32for more
information.
3-13

Rainsense™ II Wipers
For vehicles with this feature, the moisture sensor is
mounted on the interior side of the windshield behind the
rearview mirror. It is used to automatically operate the
wipers by monitoring the amount of moisture build-up
on the windshield. Wipes occur as needed to clear the
windshield depending on driving conditions and the
sensitivity setting. In light rain or snow, fewer wipes will
occur. In heavy rain or snow, wipes will occur more
frequently. The Rainsense II wipers operate in a delay
mode as well as a continuous low or high speed as
needed. If the system is left on for long periods of time,
occasional wipes may occur without any moisture on
the windshield. This is normal and indicates that the
Rainsense II system is activated.
The Rainsense II system can be activated by turning the
wiper band to one of the ve sensitivity levels indicated
on the wiper stalk. The position closest to off is the lowest
sensitivity setting, level one. This setting lets more rain or
snow to collect on the windshield between wipes. Turning
the wiper band away from you to higher sensitivity levels
increases the sensitivity of the system and frequency ofwipes. The highest sensitivity setting, level ve is closest
to low. A single wipe occurs each time the wiper stalk is
turned to a higher sensitivity level to indicate that the
sensitivity level has been increased.
Notice:Going through an automatic car wash with
the wipers on can damage them. Turn the wipers
off when going through an automatic car wash.
The mist and wash cycles operate as normal and are
not affected by the Rainsense II function. The Rainsense
II system can be overridden at any time by manually
turning the wiper band to low or high speed.
When Rainsense II is active, the headlamps turn on
automatically. The headlamps will turn off again once the
wipers turn off if it is light enough outside. If it is dark,
they remain on. SeeWiper Activated Headlamps
on page 3-32for more information.
Notice:Do not place stickers or other items on
the exterior glass surface directly in front of
the moisture sensor. Doing this could cause
the moisture sensor to malfunction.
3-14

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

Cruise Control
With cruise control, a speed of approximately 25 mph
(40 km/h) or more can be maintained without keeping
your foot on the accelerator. Cruise control does not work
at speeds below about 25 mph (40 km/h). A cruise control
light appears in the instrument panel cluster when the
cruise control is on.
When the brakes are applied, the cruise control
shuts off.{CAUTION:
Cruise control can be dangerous where you
cannot drive safely at a steady speed. So, do
not use the cruise control on winding roads or
in heavy traffic.
Cruise control can be dangerous on slippery roads.
On such roads, fast changes in tire traction can
cause excessive wheel slip, and you could lose
control. Do not use cruise control on slippery roads.
If your vehicle is in cruise control when the Traction
Control System (TCS) begins to limit wheel spin, the
cruise control automatically turns off. SeeTraction
Control System (TCS) on page 4-6. When road
conditions let you safely use it again, the cruise
control can be turned back on.
3-16

Setting Cruise Control
{CAUTION:
If you leave your cruise control 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 cruise
control switch off until you want to use cruise
control.
The cruise control buttons
are located on left side of
the steering wheel.
I(On):Turns on the cruise control system.
+ RES (Resume/Accelerate):Press to make the
vehicle accelerate or resume to a previously set speed.
SET– (Set):Press to set the speed.
[(Cancel):Press to cancel cruise control.
Cruise control will not work if the parking brake is set, or
if the master cylinder brake uid level is low.
If the brakes are applied, the cruise control shuts off.
The cruise light on the instrument panel cluster comes
on after the cruise control has been set to the desired
speed.
1. Press
I.
2. Get up to the desired speed.
3. Press the SET– button located on the steering
wheel and release it.
4. Take your foot off the accelerator.
3-17

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

Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase the vehicle speed.
When you take your foot off the pedal, the vehicle
slows down to the previous cruise control speed.
Using Cruise Control on Hills
How well your cruise control works on hills depends
upon the vehicle speed, load, and the steepness of the
hills. When going up steep hills, you might have to step
on the accelerator pedal to maintain the vehicle’s speed.
When going downhill, you might have to brake or shift to
a lower gear to keep the vehicle’s speed down. Applying
the brake or shifting into a lower gear ends cruise control.
If you need to apply the brake or shift to a lower gear due
to the grade of the downhill slope, you might not want to
attempt to use the cruise control feature.
Ending Cruise Control
To turn off the cruise control, step lightly on the brake
pedal, or press the cancel button on the steering wheel.
Erasing Speed Memory
The cruise control set speed memory is erased when
the cruise control or the ignition is turned off.
Adaptive Cruise Control
For vehicles with this feature, be sure to read this entire
section before using it.
The system operates on a radio frequency subject to
Federal Communications Commission (FCC) Rules and
with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
Adaptive Cruise Control (ACC) is an enhancement
to traditional cruise control. It allows you to keep
cruise control engaged in moderate traffic conditions
without having to constantly reset your cruise control.
3-19

ACC uses radar to detect a vehicle directly ahead
in your path, within a distance of 330 ft (100 m), and
operates at speeds above 25 mph (40 km/h). When it
is engaged by the driver, the system can apply limited
braking or acceleration of the vehicle automatically
to maintain a selected follow distance to the vehicle
ahead. Braking is limited to 0.25 g’s (2.45 m/sec2)
of deceleration, which is comparable to moderate
application of the vehicle’s brakes. To disengage ACC,
apply the brake. If no vehicle is in your path, the vehicle
will react like traditional cruise control.
{CAUTION:
Adaptive Cruise Control will not apply hard braking
or bring the vehicle to a complete stop. It will not
respond to stopped vehicles, pedestrians or
animals. When you are approaching a vehicle or
object, Adaptive Cruise Control may not have time
to slow your vehicle enough to avoid a collision.
Your complete attention is always required while
driving and you should be ready to take action
and apply the brakes. For more information,
seeDefensive Driving on page 4-2.
{CAUTION:
On winding roads, Adaptive Cruise Control
may not detect a vehicle ahead. You could
crash into a vehicle ahead of you. Do not use
Adaptive Cruise Control on winding roads.
Adaptive Cruise Control may not have time
to slow your vehicle enough to avoid a crash
when you are driving in conditions where
vehicles may suddenly slow or stop ahead of
you, enter your lane, or cross your vehicle’s
path. If you are driving in these conditions, do
not use Adaptive Cruise Control. The warning
beep and alert symbol may indicate that you
are driving in conditions where Adaptive Cruise
Control should not be used. See “Alerting the
Driver” in this section.
On slippery roads, fast changes in tire traction
can cause needless wheel spinning, and you
could lose control. Do not use cruise control on
slippery roads.
CAUTION: (Continued)
3-20