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DRIVING AND OPERATING 283
is responsible for acceleration and
gear shifting as needed. The driver
must always be prepared to apply
braking or additional acceleration, as
needed. A display and audible beeps
help to guide the parking maneuvers.
{Warning
APA may not always detect objects
in the parking space, objects that
are not rigid (e.g. shrubs and
chain-link fences), objects below the
bumper, objects high off the ground
(e.g. flatbed trucks), hanging
objects, objects below ground level
(e.g. large potholes), or moving
objects (e.g. pedestrians, cyclists,
vehicles). Always verify that the
parking space is appropriate for
parking a vehicle. APA may not
respond to changes in the parking
space, such as movement of an
adjacent vehicle, or a person or
object entering the parking space.
APA does not detect or avoid traffic
that is behind or alongside of the(Continued)
Warning (Continued)
vehicle. Always be prepared to stop
the vehicle during the parking
maneuver.
How to Activate Automatic Parking
To activate APA, press the soft-touch
button or hard switch
Ofor the
system to begin searching for a
parking space while driving forward at
no greater than 30 km/h (18 mph). By
default, APA searches for parallel
parking spaces to the right of the
vehicle up to the sensors’ range of
1.5 m (5 ft). To search for a parking
space to the left, turn on the left turn
signal or, if available, change the side
selection in the infotainment display.
To switch the parking mode between
parallel and perpendicular press and
hold
Owhile searching for a valid
parking spot or, if available, change
the parking mode in the infotainment
display.
APA cannot park in all empty parking
spots. The parking spot must:
.Be sufficiently large to fit the
vehicle comfortably.
.Have an adjacent vehicle, wall,
or pillar for the system to align to.
After completely passing an eligible
parking spot, a beep sounds and a red
stop symbol is displayed in the driver
information center. Generally, APA
selects the nearest empty parking spot
behind the vehicle, but under some
conditions may select a space that is
further back. Slow down and bring the
vehicle to a complete stop to begin.
Follow the displayed instructions.
When instructed to drive in reverse,
shift to R (Reverse) while holding the
brakes. The steering wheel will vibrate
briefly as a reminder to remove hands
from the steering wheel. After the
vibration stops, check your
surroundings and release the brakes
to begin automatic parking. As the
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
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DRIVING AND OPERATING 289
When your vehicle approaches
another detected vehicle too rapidly,
the red FCA display will flash on the
windshield. Also, eight rapid
high-pitched beeps will sound from
the front, or both sides of the Safety
Alert Seat will pulse five times. When
this Collision Alert occurs, the brake
system may prepare for driver braking
to occur more rapidly which can cause
a brief, mild deceleration. Continue to
apply the brake pedal as needed.
Tailgating Alert
The vehicle ahead indicator will
display amber when you are following
a vehicle ahead much too closely.
Selecting the Alert Timing
The Collision Alert control is on the
steering wheel. Press
[to set the
FCA timing to Far, Medium, or Near.
The first button press shows the
current setting on the DIC. Additional
button presses will change this
setting. The chosen setting will
remain until it is changed and will
affect the timing of both the Collision
Alert and the Tailgating Alert features.
The timing of both alerts will vary
based on vehicle speed. The faster the
vehicle speed, the farther away the
alert will occur. Consider traffic and
weather conditions when selecting the alert timing. The range of selectable
alert timings may not be appropriate
for all drivers and driving conditions.
If your vehicle is equipped with
Adaptive Cruise Control (ACC),
changing the FCA timing setting
automatically changes the following
gap setting (Far, Medium, or Near).
Following Distance Indicator
The following distance to a moving
vehicle ahead in your path is indicated
in following time in seconds on the
Driver Information Center (DIC). See
Driver Information Center (DIC)
0124.
The minimum following time is
0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is
out of sensor range, dashes will be
displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts
for turning vehicles, vehicles in other
lanes, objects that are not vehicles,
or shadows. These alerts are normal
operation and the vehicle does not
need service.
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298 DRIVING AND OPERATING
If the LCA displays do not light up
when moving vehicles are in the side
blind zone or are rapidly approaching
this zone and the system is clean, the
system may need service. Take the
vehicle to your dealer.
Radio Frequency Information
SeeRadio Frequency Statement 0421.
Lane Keep Assist (LKA)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. This system uses a camera
to detect lane markings between
60 km/h (37 mph) and 180 km/h
(112 mph). It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking. It may also provide a Lane
Departure Warning (LDW) alert if the
vehicle crosses a detected lane
marking. LKA can be overridden by
turning the steering wheel. This
system is not intended to keep the
vehicle centered in the lane. LKA will
not assist and alert if the turn signal
is active in the direction of lane departure, or if it detects that you are
accelerating, braking or actively
steering.
{Warning
The LKA system does not
continuously steer the vehicle.
It may not keep the vehicle in the
lane or give a Lane Departure
Warning (LDW) alert, even if a lane
marking is detected.
The LKA and LDW systems
may not:
.Provide an alert or enough
steering assist to avoid a lane
departure or crash.
.Detect lane markings under poor
weather or visibility conditions.
This can occur if the windshield
or headlamps are blocked by dirt,
snow, or ice; if they are not in
proper condition; or if the sun
shines directly into the camera.
.Detect road edges.
.Detect lanes on winding or hilly
roads.
(Continued)
Warning (Continued)
If LKA only detects lane markings
on one side of the road, it will only
assist or provide an LDW alert
when approaching the lane on the
side where it has detected a lane
marking. Even with LKA and LDW,
you must steer the vehicle. Always
keep your attention on the road and
maintain proper vehicle position
within the lane, or vehicle damage,
injury, or death could occur. Always
keep the windshield, headlamps,
and camera sensors clean and in
good repair. Do not use LKA in bad
weather conditions or on roads with
unclear lane markings, such as
construction zones.
{Warning
Using LKA while towing a trailer or
on slippery roads could cause loss
of control of the vehicle and a
crash. Turn the system off.
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DRIVING AND OPERATING 299
How the System Works
LKA uses a camera sensor installed on
the windshield ahead of the rearview
mirror to detect lane markings. It may
provide brief steering assist if it
detects an unintended lane departure.
It may further provide an audible alert
or the driver seat may pulse indicating
that a lane marking has been crossed.
To turn LKA on and off, press
A
(base) orn(uplevel) on the center
stack. If equipped, the indicator light
on the button comes on when LKA is
on and turns off when LKA is
disabled.
When on,
Aornis white,
if equipped, indicating that the system
is not ready to assist.
Aornis
green if LKA is ready to assist. LKA
may assist by gently turning the
steering wheel if the vehicle
approaches a detected lane marking.
Aornis amber when assisting.
It may also provide a Lane Departure
Warning (LDW) alert by flashing
A
ornamber if the vehicle crosses a
detected lane marking. Additionally, there may be three beeps, or the
driver seat may pulse three times, on
the right or left, depending on the
lane departure direction.
Take Steering
The LKA system does not
continuously steer the vehicle. If LKA
does not detect active driver steering,
an alert and chime may be provided.
Steer the vehicle to dismiss. LKA may
become temporarily unavailable after
repeated take steering alerts.
When the System Does Not
Seem to Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as
when driving through tunnels.
.Banked roads.
.Roads with poor lane markings,
such as two-lane roads.
If the LKA system is not functioning
properly when lane markings are
clearly visible, cleaning the windshield
may help. A camera blocked message may
display if the camera is blocked. Some
driver assistance systems may have
reduced performance or not work at
all. An LKA or LDW unavailable
message may display if the systems
are temporarily unavailable. This
message could be due to a blocked
camera. The LKA system does not
need service. Clean the outside of the
windshield behind the rearview mirror.
LKA assistance and/or LDW alerts
may occur due to tar marks, shadows,
cracks in the road, temporary or
construction lane markings, or other
road imperfections. This is normal
system operation; the vehicle does not
need service. Turn LKA off if these
conditions continue.
Surround Vision Recorder
If equipped, this system records the
360° camera views to an SD card. Only
images are recorded, no sound. An SD
card will be needed for this system.
The recommended SD card is a 32GB
SDHC card with FAT32 file system,
Class 10 and over.
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DRIVING AND OPERATING 307
trailer brake controller to check the
trailer brakes work. During the trip,
occasionally check that the cargo and
trailer are secure and that the lamps
and any trailer brakes are working.
Towing with a Stability Control
System
When towing, the stability control
system might be heard. The system
reacts to vehicle movement caused by
the trailer, which mainly occurs
during cornering. This is normal when
towing heavier trailers.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving without a trailer. This can help
to avoid heavy braking and sudden
turns.
Passing
More passing distance is needed when
towing a trailer. The combination of
the vehicle and trailer will not
accelerate as quickly and is much
longer than the vehicle alone. It is
necessary to go much farther beyondthe passed vehicle before returning to
the lane. Pass on level roadways.
Avoid passing on hills if possible.
Backing Up
Hold the bottom of the steering wheel
with one hand. To move the trailer to
the left, move that hand to the left. To
move the trailer to the right, move
that hand to the right. Always back up
slowly and, if possible, have someone
guide you.
Making Turns
Caution
Turn more slowly and make wider
arcs when towing a trailer to
prevent damage to your vehicle.
Making very sharp turns could
cause the trailer to contact the
vehicle.
Make wider turns than normal when
towing, so the trailer will not go over
soft shoulders, over curbs, or strike
road signs, trees, or other objects.
Always signal turns well in advance.
Do not steer or brake suddenly.
Driving on Grades
Reduce speed and shift to a lower gear
before starting down a long or steep
downhill grade. If the transmission is
not shifted down, the brakes may
overheat and result in reduced braking
efficiency.
The vehicle can tow in D (Drive). Shift
the transmission to a lower gear if the
transmission shifts too often under
heavy loads and/or hilly conditions.
When towing at higher altitudes,
engine coolant will boil at a lower
temperature than at lower altitudes.
If the engine is turned off immediately
after towing at high altitude on steep
uphill grades, the vehicle could show
signs similar to engine overheating. To
avoid this, let the engine run,
preferably on level ground, with the
transmission in P (Park) for a few
minutes before turning the engine off.
If the overheat warning comes on, see
Engine Overheating 0334.
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308 DRIVING AND OPERATING
Parking on Hills
{Warning
To prevent serious injury or death,
always park your vehicle and trailer
on a level surface when possible.
When parking your vehicle and your
trailer on a hill: 1. Press the brake pedal, but do not shift into P (Park) yet. Turn the
wheels into the curb if facing
downhill or into traffic if facing
uphill.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, gradually release the brake
pedal to allow the chocks to absorb
the load of the trailer.
4. Reapply the brake pedal. Then apply the parking brake and shift
into P (Park).
5. Release the brake pedal.
Leaving After Parking on a Hill
1. Apply and hold the brake pedal:
.Start the engine.
.Shift into a gear.
.Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer
Towing
The vehicle needs service more often
when used to tow trailers. See
Maintenance Schedule 0395. It is
especially important to check the
transmission for fluid leaks, engine
oil, axle lubricant, belts, cooling
system, and brake system before and
during each trip.
Check periodically that all nuts and
bolts on the trailer hitch are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
0 334.
Trailer Towing
Caution
Towing a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To tow a trailer
correctly, follow the directions in
this section and see your dealer for
important information about
towing a trailer with the vehicle.
Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-15218998) -
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318 VEHICLE CARE
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 319
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . 319
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 319
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 319
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 322
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Oil Life System . . . . . . . . . . . 327
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Engine Air Filter Life System . . . . 328
Engine Air Cleaner/Filter . . . . . . . . . 329
Cooling System . . . . . . . . . . . . . . . . . . . 330
Engine Overheating . . . . . . . . . . . . . . 334
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 335
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 336
Battery - North America . . . . . . . . . 337
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . 338
Wiper Blade Replacement . . . . . . . 338 Windshield Replacement . . . . . . . . 340
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 340
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 341
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 341
Electrical System
Electrical System Overload . . . . . . 341
Fuses and Circuit Breakers . . . . . . 343
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Instrument Panel Fuse Block . . . . 347
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
All-Season Tires . . . . . . . . . . . . . . . . . . 352
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 352
Tire Sidewall Labeling . . . . . . . . . . . 353
Tire Designations . . . . . . . . . . . . . . . . . 354
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 355
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 358
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 359
Tire Pressure Monitor System . . . 360
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 361 Tire Inspection . . . . . . . . . . . . . . . . . . . 364
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 365
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Buying New Tires . . . . . . . . . . . . . . . . 367
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Uniform Tire Quality Grading . . . 368
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Wheel Replacement . . . . . . . . . . . . . . 370
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 370
If a Tire Goes Flat . . . . . . . . . . . . . . . . 371
Tire Changing . . . . . . . . . . . . . . . . . . . . . 372
Compact Spare Tire . . . . . . . . . . . . . . 378
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 379
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 381
Recreational Vehicle Towing . . . . 382
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 384
Interior Care . . . . . . . . . . . . . . . . . . . . . . 389
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 392
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VEHICLE CARE 327
Engine Oil Additives/Engine Oil
Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos
specification are all that is needed for
good performance and engine
protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your own
oil, be sure to drain all the oil from
the filter before disposal. Never
dispose of oil by putting it in the trashor pouring it on the ground, into
sewers, or into streams or bodies of
water. Recycle it by taking it to a place
that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based on a
combination of factors which include
engine revolutions, engine
temperature, and miles driven. Based
on driving conditions, the mileage at
which an oil change is indicated can
vary considerably. For the oil life
system to work properly, the system
must be reset every time the oil is
changed.
When the system has calculated that
oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. Change the
oil as soon as possible within the next
1 000 km (600 mi). It is possible that,
if driving under the best conditions,
the oil life system might indicate that
an oil change is not necessary for up
to a year. The engine oil and filter
must be changed at least once a year
and at this time the system must be
reset. Your dealer has trained service
people who will perform this work and
reset the system. It is also important
to check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.
If the system is ever reset accidentally,
the oil must be changed at 5 000 km
(3,000 mi) since the last oil change.
Remember to reset the oil life system
whenever the oil is changed.
How to Reset the Engine Oil Life
System
Reset the system whenever the engine
oil is changed so that the system can
calculate the next engine oil change.
To reset the system:
1. Using the DIC controls on the right side of the steering wheel, display
REMAINING OIL LIFE on the DIC.
See Driver Information Center (DIC)
0 124. When remaining oil life is
low, the CHANGE ENGINE OIL
SOON message will appear on the
display.