Page 118 of 470
Black plate (14,1)Cadillac DTS Owner Manual - 2011
Windows
{WARNING:
Leaving children, helpless adults, or pets in a
vehicle with the windows closed is dangerous.
They can be overcome by the extreme heat and
suffer permanent injuries or even death from heat
stroke. Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the windows
closed in warm or hot weather.
The vehicle aerodynamics are designed to improve fuel
economy performance. This may result in a pulsing
sound when either rear window is down and the front
windows are up. To reduce the sound, open either a
front window or the sunroof (if equipped).
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Page 129 of 470

Black plate (25,1)Cadillac DTS Owner Manual - 2011
Notice:Cranking the engine for long periods of
time, by returning the key to the START position
immediately after cranking has ended, can overheat
and damage the cranking motor, and drain the
battery. Wait at least 15 seconds between each try,
to let the cranking motor cool down.
2. If the engine does not start after 5‐10 seconds, especially in very cold weather (below 0°F or
−18°C), it could be flooded with too much gasoline.
Try pushing the accelerator pedal all the way to
the floor and holding it there as you hold the key in
START for up to a maximum of 15 seconds. Wait
at least 15 seconds between each try, to allow the
cranking motor to cool down. When the engine
starts, let go of the key and accelerator. If the
vehicle starts briefly but then stops again, repeat
these steps. This clears the extra gasoline from the
engine. Do not race the engine immediately after
starting it. Operate the engine and transmission
gently until the oil warms up and lubricates all
moving parts. Notice:
The engine is designed to work with the
electronics in the vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you do not,
the engine might not perform properly. Any
resulting damage would not be covered by the
vehicle warranty.
Engine Coolant Heater
The engine coolant heater can provide easier starting
and better fuel economy during engine warm‐up in cold
weather conditions at or below 0°F (−18°C). Vehicles
with an engine coolant heater should be plugged in at
least four hours before starting.
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Page 148 of 470

Black plate (44,1)Cadillac DTS Owner Manual - 2011
The SBZA displays may remain on if a trailer is
attached to the vehicle, or a bicycle or object is
extending out to either side of the vehicle.
When SBZA is disabled for any reason other than the
driver turning it off, the driver will not be able to turn
SBZA back on using the DIC. The SIDE BLIND ZONE
ALERT ON option will not be selectable if the conditions
for normal system operation are not met. Until normal
operating conditions for SBZA are met, you should not
rely upon SBZA while driving.
SBZA Error Messages
The following messages may appear in the DIC:
SIDE BLIND ZONE ALERT SYSTEM OFF:This
message indicates that the driver has turned the
system off.
SIDE BLIND ZONE SYSTEM UNAVAILABLE: This
message indicates that the SBZA system is disabled
because the sensor is blocked and cannot detect
vehicles in the blind zone. The sensor may be
blocked by mud, dirt, snow, ice, slush, or even heavy
rainstorms. This message may also activate during
heavy rain or due to road spray. The vehicle does not
need service. For cleaning, see Washing Your Vehicle
on page 6‑98. SERVICE SIDE BLIND ZONE ALERT SYSTEM:
If this
message appears, both SBZA displays will remain on
indicating there is a problem with the SBZA system.
If these displays remain on after continued driving, the
system needs service. Take the vehicle to your dealer.
FCC Information
See Radio Frequency Statementon page 8‑18for information regarding Part 15 of the Federal
Communications Commission (FCC) rules and Industry
Canada Standards RSS-210/220/310.
Frequency of operation: 24.05GHz –24.25GHz
Field Strength: Not greater than 2.5V/m peak
(0.25V/m average) at a distance of 3 m.
The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to
this equipment. Such modifications could void the user's
authority to operate the equipment.
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Page 171 of 470

Black plate (9,1)Cadillac DTS Owner Manual - 2011
The alert symbol will flash when:
.Your vehicle is approaching another vehicle too
quickly.
.Your vehicle is following a vehicle ahead of you
much too closely.
See Defensive Driving
on page 5‑2for more
information.
Detecting the Vehicle Ahead
The vehicle ahead symbol, located next to the FCA
symbol, only appears when a vehicle ahead of you is
detected in your path. If this symbol does not appear,
or disappears briefly, FCA will not respond to vehicles
you may see ahead. The symbol may disappear on
curves, highway exit ramps, or hills. Also, when another
vehicle enters the same lane as you, the FCA system
will not detect the vehicle until it is completely in your
driving lane.
{WARNING:
When the Adaptive Cruise Control radar is
blocked by snow, ice, or dirt, it may not detect a
vehicle ahead. FCA may not help you avoid a
collision under these conditions. Do not use FCA
(Continued)
WARNING: (Continued)
when the radar is blocked by snow, ice, or dirt.
Keep your radar clean. See“Cleaning the
System” underAdaptive Cruise Control
on
page 4‑14
.
{WARNING:
FCA may not detect and warn soon enough to
stationary or slow-moving vehicles or other
objects ahead of you. You could crash into an
object ahead of you. Do not rely on FCA when
approaching stationary or slow-moving vehicles or
other objects.
Unnecessary Alerts
FCA may occasionally provide alerts that you consider
unnecessary. It could respond to a turning vehicle
ahead of you, guard rails, signs, and other stationary
objects. This is normal operation, your vehicle does not
need service.
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Page 177 of 470

Black plate (15,1)Cadillac DTS Owner Manual - 2011
Changes or modifications 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. ACC
uses radar to detect a vehicle directly ahead in your
path, within a distance of 100 m (330 ft), and operates
at speeds above 40 km/h (25 mph). 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 2.45 m/sec2 (0.25 g's) 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.
{WARNING:
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 5‑2.
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Page 182 of 470

Black plate (20,1)Cadillac DTS Owner Manual - 2011
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 briefly,
ACC will not respond to vehicles you may see ahead.
{WARNING:
When the Adaptive Cruise Control radar is
blocked by snow, ice, or dirt, it may not detect a
vehicle ahead. Adaptive Cruise Control may not
have time to slow your vehicle enough to avoid a
collision. Do not use Adaptive Cruise Control
when the radar is blocked by snow, ice, or dirt.
Keep your radar clean. See “Cleaning the
System” later in this section. ACC automatically slows your vehicle down when
approaching a slower moving vehicle. It then adjusts
your vehicle speed to follow the vehicle in front at the
selected follow distance. Your vehicle speed increases
or decreases to follow the vehicle in front of you, but will
not exceed the set speed. It may apply limited braking,
if necessary. When braking is active, your brake lights
will come on. Braking may feel or sound different than if
you were applying the brakes yourself. This is normal.
Stationary or Very Slow-Moving Objects
{WARNING:
Adaptive Cruise Control may not detect and react
to stationary or slow‐moving vehicles or other
objects ahead of you. You could crash into an
object ahead of you. Do not use Adaptive
Cruise Control when approaching stationary or
slow‐moving vehicles or other objects.
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Page 184 of 470
Black plate (22,1)Cadillac DTS Owner Manual - 2011
Curves in the Road
{WARNING:
Due to Adaptive Cruise Control limitations in
curves, it may respond to a vehicle in another
lane, or may not have time to react to a vehicle in
your lane. You could crash into a vehicle ahead of
you, or lose control of your vehicle. Give extra
attention in curves and be ready to use the brakes
if necessary. Select an appropriate speed while
driving in curves.
ACC may operate differently in a sharp curve. It may
reduce your vehicle speed if the curve is too sharp.
When following a vehicle and entering a curve, ACC
could lose track of the vehicle in your lane and
accelerate your vehicle. When this happens the Vehicle
Ahead symbol will not appear.
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Page 185 of 470
Black plate (23,1)Cadillac DTS Owner Manual - 2011
ACC may detect a vehicle that is not in your lane and
apply the brakes.
ACC may, occasionally, provide a driver alert and/or
braking that you consider unnecessary. It could respond
to signs, guardrails, and other stationary objects when
entering or exiting a curve. This is normal operation.
Your vehicle does not need service.
Highway Exit Ramps
{WARNING:
Adaptive Cruise Control may lose track of the
vehicle ahead and accelerate up to your set
speed while entering or on highway exit ramps.
You could be startled by this acceleration and
even lose control of the vehicle. Disengage
Adaptive Cruise Control before entering a
highway exit ramp. Do not use Adaptive Cruise
Control while entering or on exit ramps.
Other Vehicle Lane Changes
If another vehicle enters the same lane as you, ACC will
not detect the vehicle until it is completely in the lane.
Be ready to take action and apply the brakes yourself.
4-23