2010 CADILLAC DTS brakes

Engaging ACC With the Set Button
{WARNING:
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 thespeed your vehicle will travel if there is no vehicledetected 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 ifit detects a vehicle ahead is too close or movingslower than your vehicle.
The on symbol is located on the display at the top of theinstrument panel to the right of the driver. When the onsymbol is lit on the display, it indicates that ACC is active.
A message on the DIC will also display when ACC isset. SeeDIC Warnings and Messages on page 4-67.
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 controlsystem begins to limit wheel spin, the ACC willautomatically disengage. SeeTraction Control System(TCS) on page 5-6andStabiliTrak®System onpage 5-5. When road conditions allow you to safely useit 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 thebutton and the accelerator pedal. The vehicle willnow cruise at the higher speed.
•Press the +RES button. Hold it there until the
desired set speed is displayed on the DriverInformation Center (DIC), then release the switch.To increase the set speed in very small amounts,move the switch briefly to +RES. Each timethis is done, the set speed increasesby 1 km/h (1 mph).
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Your vehicle will not reach the set speed until thesystem determines there is not a vehicle in front of you.At that point, your vehicle speed will increase to theset speed.
Decreasing Set Speed While Using ACC
Press the SET– button until you reach the lower speeddesired, then release it.
To slow down in very small amounts, briefly press theSET– button. Each time this is done, the set speeddecreases by 1 km/h (1 mph) slower.
Resuming a Set Speed
Suppose the ACC is set at a desired speed and thenthe brakes are applied. This will turn off the ACC. But itdoes not need to be reset.
Once the vehicle speed reaches about 40 km/h (25 mph)or more, press the +RES button. ACC will be engagedwith the previously chosen set speed.
Selecting the Follow Distance (GAP)
When the system detects a slower moving vehicle, it willadjust your vehicle’s speed and maintain the followdistance (gap) you select.
Use the plus and minus buttons on the steering wheelto adjust the follow distance.
Press the plus button to increase the distance or theminus button to decrease the distance. The first buttonpress shows the current follow distance setting onthe DIC. The current follow distance setting willbe maintained until it is changed.
There are six follow distances to choose from. Thefollow distance selection ranges from near to far(one second to two seconds follow time). The distancemaintained for a selected follow distance will varybased on vehicle speed. The faster the vehicle speedthe further back your vehicle will follow. Considertraffic and weather conditions when selecting the followdistance. The range of selectable distances may notbe appropriate for all drivers and driving conditions.If you prefer to travel at a follow distance farther thanACC allows, disengage the system and drive manually.
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Alerting the Driver
The ACC alert symbol islocated on the display atthe top of the instrumentpanel to the right ofthe driver.
The alert symbol flashes and a warning beep soundswhen driver action may be required. If ACC is engaged,the alert symbol will flash when:
•ACC cannot apply sufficient braking because you
are approaching a vehicle too rapidly.
•The vehicle speed drops below about 32 km/h
(20 mph).
•A temporary condition prohibits ACC from operating.
SeeDIC Warnings and Messages on page 4-67formore information.
•A malfunction is detected in the system. SeeDIC
Warnings and Messages on page 4-67for moreinformation.
SeeDefensive Driving on page 5-2.
{WARNING:
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. See
Defensive Driving on page 5-2.
Approaching and Following a Vehicle
The vehicle ahead symbolis located on the top of theinstrument panel to theright of the driver.
The vehicle ahead symbol only appears when a vehicleis detected in your path.
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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 whenapproaching a slower moving vehicle. It then adjustsyour vehicle speed to follow the vehicle in front atthe selected follow distance. Your vehicle speedincreases or decreases to follow the vehicle in front ofyou, but will not exceed the set speed. It may applylimited braking, if necessary. When braking is active,your brake lights will come on. Braking may feelor sound different than if you were applying the brakesyourself. 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.
{WARNING:
Adaptive Cruise Control may not detect and react
to stationary or slow-moving vehicles or other
objects ahead of you. Your vehicle may accelerate
toward objects, such as a stopped vehicle that
suddenly appears after the lead vehicle changes
lanes. Your complete attention is always required
while driving and you should be ready to take
action and apply the brakes.
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Low-Speed Deactivation
If your vehicle speed falls below 32 km/h (20 mph) whilefollowing a vehicle ahead, ACC will begin to disengage.The Driver Alert symbol will flash and the warningbeep will sound. The driver must take action sinceACC will not slow the vehicle to a stop.
Passing a Vehicle/ACC Override
To increase speed to pass a vehicle, use the acceleratorpedal. While you are doing this, the system will notautomatically apply the brakes. A message will appearon the DIC. SeeDIC Warnings and Messages onpage 4-67. Once you remove your foot from theaccelerator pedal, ACC will return to normal operationand be able to apply the brakes, if needed.
{WARNING:
If you rest your foot on the accelerator pedal, the
system will not automatically apply the brakes.
You could crash into a vehicle ahead of you. Do
not rest your foot on the accelerator pedal when
using Adaptive Cruise Control.
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 mayreduce your vehicle speed if the curve is too sharp.
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When following a vehicle and entering a curve, ACCcould lose track of the vehicle in your lane andaccelerate your vehicle. When this happens the VehicleAhead symbol will not appear.
ACC may detect a vehicle that is not in your lane andapply the brakes.
ACC may, occasionally, provide a driver alert and/orbraking that you consider unnecessary. It could respondto signs, guardrails, and other stationary objectswhen entering or exiting a curve. This is normaloperation. Your vehicle does not need service.
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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 willnot detect the vehicle until it is completely in the lane.Be ready to take action and apply the brakes yourself.
Using ACC on Hills and When Towing a
Trailer
How well ACC will work on hills and when towing atrailer depends on your vehicle’s speed, vehicle load,traffic conditions and the steepness of the hills. Itmay not detect a vehicle in your lane while driving onhills. When going up steep hills, you may want touse the accelerator pedal to maintain your vehicle’sspeed. When going downhill, especially when towing atrailer, you may want to brake to keep your speeddown. Applying the brake disengages the system. Youmay choose not to use ACC on steep hills, especiallywhen towing a trailer.
Disengaging ACC
To turn off the system, apply the brake pedal, press thecancel button, or press the ACC button.
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If the light comes on while driving, pull off the road andstop carefully.The pedal may be harder to push, orthe pedal may go closer to the floor. It may take longerto stop. If the light is still on, have the vehicle towedfor service. SeeTowing Your Vehicle on page 5-24.
{WARNING:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
Antilock Brake System (ABS)
Warning Light
For vehicles with theAntilock Brake System(ABS), this light comes onbriefly when the engineis started.
If it does not, have the vehicle serviced by yourdealer/retailer. If the system is working normally theindicator light then goes off.
If the ABS light stays on, turn the ignition off. If the lightcomes on while driving, stop as soon as it is safelypossible and turn the ignition off. Then start the engineagain to reset the system. If the ABS light stays on,or comes on again while driving, the vehicle needsservice. If the regular brake system warning light is noton, the vehicle still has brakes, but not antilockbrakes. If the regular brake system warning light is alsoon, the vehicle does not have antilock brakes andthere is a problem with the regular brakes. SeeBrakeSystem Warning Light on page 4-52.
For vehicles with a Driver Information Center (DIC), seeDIC Warnings and Messages on page 4-67for allbrake related DIC messages.
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