2018 BUICK ENCLAVE ac port

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
216 Driving and Operating
Tow/Haul Mode
This feature can assist when towing
or hauling a heavy load.
_:Select Tow/Haul Mode with
the switch on the center stack.
When Tow/Haul is activated, there
will be a “Tow/Haul Mode On”
message displayed on the cluster.
See Driving Characteristics and
Towing Tips 0253 andDriver Mode
Control 0222.
Automatic Engine Grade
Braking
Automatic Engine Grade Braking
assists when driving downhill.
It maintains vehicle speed by
automatically implementing a shift
pattern that uses the engine and the
transmission to slow the vehicle.
The system will automatically
command downshifts to reduce
vehicle speed. The normal shift
pattern will return once the vehicle
is on a low grade or when the
accelerator pedal is pressed.
While in the Manual Mode, grade
braking is deactivated, allowing the
driver to directly select a range and
limiting the highest gear available.
Grade braking is available for
normal driving and in Tow/
Haul Mode.
See Automatic Transmission 0210.
Drive Systems
All-Wheel Drive
Vehicles with this feature can
operate in AWD Mode.
Press the button to select All-Wheel
Drive (AWD).
The AWD Mode will stay selected
until the mode is changed. If the
vehicle is placed in Sport Mode, see
Driver Mode Control 0222.
Sport Mode is canceled with each
ignition cycle. See Driver Mode
Control 0222.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
222 Driving and Operating
Caution
Do not repeatedly brake or
accelerate heavily when TCS is
off. The vehicle driveline could be
damaged.
To turn off only TCS, press and
release
g. The Traction Off lighti
displays in the instrument cluster
and the appropriate DIC message
displays.
To turn TCS on again, press and
release
g. The Traction Off lighti
displayed in the instrument cluster
will turn off.
If TCS is limiting wheel spin when
g
is pressed, the system will not turn
off until the wheels stop spinning.
To turn off both TCS and StabiliTrak,
press and hold
guntil the Traction
Off light
iand StabiliTrak OFF light
gcome on and stay on in the
instrument cluster. The appropriate
DIC message displays. To turn TCS and StabiliTrak on
again, press and release
g. The
Traction Off light
iand StabiliTrak
OFF light
gin the instrument cluster
turn off.
Adding accessories can affect the
vehicle performance. See
Accessories and Modifications
0 265.
Driver Mode Control
If equipped, the vehicle may have
the following modes: All-Wheel
Drive (AWD), Sport, Tow/Haul or
both Sport and Tow/Haul. Vehicles
with Sport & Tow/Haul will only have
one selectable button (Tow/Haul).
Selecting this option will engage
both the Sport features as well as
the Tow/Haul features. When not in
AWD, the vehicle is in Front-Wheel
Drive (FWD) which will provide
better fuel economy. All drive modes
will have display mode on message
except FWD.
Driver Mode Control attempts to add
a sportier feel, provide a more
comfortable ride, or assist in different weather conditions or
terrain. This system simultaneously
changes the software calibration of
various sub-systems. Depending on
the option package, available
features, and mode selected, the
suspension, steering, and
powertrain will change calibrations
to achieve the desired mode
characteristics.
AWD Mode
AWD Mode is intended for
conditions which demand more
traction. In AWD Mode, the AWD
system delivers power to all four
wheels and the system adjusts as

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
Driving and Operating 223
needed to improve traction.
Pressing the AWD Mode switch will
select AWD Mode. The AWD light
will flash briefly while the system is
engaging and stay on to indicate
AWD is active. The AWD light will
stay off when AWD is inactive. AWD
Mode can be turned on and off
independently of other modes. See
All-Wheel Drive0216.
Sport Mode
If equipped, Sport Mode is used
when road conditions or personal
preference demand a more
controlled response. When in Sport
Mode, the steering and suspension will change to provide more precise
control and better cornering
performance. Sport Mode is only
available on vehicles equipped with
Real Time Damping. Sport Mode
also changes the StabiliTrak and
AWD settings to allow more
wheel slip.
Tow/Haul Mode
If equipped, Tow/Haul Mode can
assist when towing or hauling a
heavy load. It changes transmission
shift patterns, and increases trailer
sway control assistance. See
Driving Characteristics and Towing
Tips
0253. Tow/Haul Mode is available on vehicles with the Trailer
Towing Package. For vehicles with
both the Trailer Towing package and
Real Time Damping, both options
are available and selected by
pressing the Tow/Haul button.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
Driving and Operating 231
braking may feel or sound different
than if the brakes were applied
manually. This is normal.
Stationary or Very Slow-Moving
Objects
{Warning
ACC may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when a
vehicle suddenly appears due to
a vehicle ahead changing lanes.
Your vehicle may not stop and
could cause a crash. Use caution
when using ACC. Your complete
attention is always required while
driving and you should be ready
to take action and apply the
brakes.ACC Automatically Disengages
ACC may automatically disengage
and the driver will need to manually
apply the brakes to slow the
vehicle if:
.
The sensors are blocked.
. The Traction Control System
(TCS) or electronic stability
control system has activated or
been disabled.
. There is a fault in the system.
. The radar falsely reports
blockage when driving in a
desert or remote area with no
other vehicles or roadside
objects. A DIC message may
display to indicate that ACC is
temporarily unavailable.
A message will appear on the DIC
indicating that cruise is disengaging.
The ACC active symbol will turn
white when ACC is no longer active.
In some cases, when ACC will not
activate, regular Cruise Control may
be used. See “Switching Between
ACC and Regular Cruise Control” previously in this section. Always
consider driving conditions before
using either cruise control system.
Notification to Resume ACC
ACC will maintain a following gap
behind a detected vehicle and slow
your vehicle to a stop behind that
vehicle.
If the stopped vehicle ahead has
driven away and ACC has not
resumed, the vehicle ahead
indicator will flash as a reminder to
check traffic ahead before
proceeding. In addition, the left and
right sides of the Safety Alert Seat
will pulse three times, or three
beeps will sound. See
“Alert Type”
and “Adaptive Cruise Go Notifier” in
“Collision/Detection Systems” under
Vehicle Personalization 0154.
When the vehicle ahead drives
away, press RES+ or the
accelerator pedal to resume cruise
control. If stopped for more than
two minutes or if the driver door is
opened and the driver seat belt is
unbuckled, ACC automatically
applies the Electric Parking Brake

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
252 Driving and Operating
Filling the Tank with a Portable
Gas Can
If the vehicle runs out of fuel and
must be filled from a portable
gas can:
1. Locate the capless funneladapter from the rear cargo
area under the load floor tray.
2. Insert and latch the funnel into the capless fuel system.
{Warning
Attempting to refuel without using
the funnel adapter may cause fuel
spillage and damage the capless
fuel system. This could cause a
fire and you or others could be
badly burned and the vehicle
could be damaged. 3. Remove and clean the funnel
adapter and return it to the
storage location.
Filling a Portable Fuel
Container
{Warning
Filling a portable fuel container
while it is in the vehicle can cause
fuel vapors that can ignite either
by static electricity or other
means. You or others could be
badly burned and the vehicle
could be damaged. Always:
. Use approved fuel
containers.
. Remove the container from
the vehicle, trunk, or pickup
bed before filling.
. Place the container on the
ground.
. Place the nozzle inside the
fill opening of the container
before dispensing fuel, and
(Continued)
Warning (Continued)
keep it in contact with the fill
opening until filling is
complete.
. Fill the container no more
than 95% full to allow for
expansion.
. Do not smoke, light
matches, or use lighters
while pumping fuel.
. Avoid using cell phones or
other electronic devices.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 253
Trailer Towing
General Towing
Information
Only use towing equipment that has
been designed for the vehicle.
Contact your dealer or trailering
dealer for assistance with preparing
the vehicle for towing a trailer. Read
the entire section before towing a
trailer.
For towing a disabled vehicle, see
Towing the Vehicle0327. For
towing the vehicle behind another
vehicle such as a motor home, see
Recreational Vehicle Towing 0327.
Driving Characteristics
and Towing Tips
Driving with a Trailer
When towing a trailer:
.
Become familiar with the state
and local laws that apply
specifically to trailer towing. .
Do not tow a trailer during the
first 800 km (500 mi), to prevent
damage to the engine, axle or
other parts.
. Then, during the first 800 km
(500 mi) of trailer towing, do not
drive over 80 km/h (50 mph) and
do not make starts at full throttle.
. Vehicles can tow in D (Drive) but
Manual Mode is recommended.
See Manual Mode 0215. Use a
lower gear if the transmission
shifts too often. The Tow/Haul
Mode may be used in both
modes. See Tow/Haul Mode
0 216.
. For vehicles with Sport Mode,
use that mode when towing for
better shifting and weight
management.
. Turn off Parking Assist when
towing.
. Turn off Lane Keep Assist (LKA)
when towing. See Lane Keep
Assist (LKA) 0247. .
Do not use Adaptive Cruise
Control (ACC) when towing. See
Adaptive Cruise Control 0226.
. The Forward Automatic Braking
system should be set to Off
when towing. See Forward
Automatic Braking (FAB) 0241.
. The Front Pedestrian Braking
system should be set to Alert or
Off when towing. See Front
Pedestrian Braking (FPB)
System 0243.
{Warning
When towing a trailer, exhaust
gases may collect at the rear of
the vehicle and enter if the
liftgate, trunk/hatch, or rear-most
window is open.
When towing a trailer:
. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
(Continued)

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
256 Driving and Operating
4. Reapply the brake pedal. Thenapply 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 while you:
.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 pulling a trailer. See the
Maintenance Schedule 0341.
Things that are especially important
in trailer operation are automatic
transmission fluid, engine oil, axle lubricant, belts, cooling system, and
brake system. Inspect these before
and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. See
Engine Overheating
0 276.
Trailer Towing
Do not tow a trailer during break-in.
See New Vehicle Break-In 0200.
{Warning
The driver can lose control when
pulling a trailer if the correct
equipment is not used or the
vehicle is not driven properly. For
example, if the trailer is too heavy
or the trailer brakes are
inadequate for the load, the
vehicle may not stop as expected.
(Continued)
Warning (Continued)
The driver and passengers could
be seriously injured. The vehicle
may also be damaged; the
resulting repairs would not be
covered by the vehicle warranty.
Pull a trailer only if all the steps in
this section have been followed.
Ask your dealer for advice and
information about towing a trailer
with the vehicle.
Caution
Pulling a trailer improperly can
damage the vehicle and result in
costly repairs not covered by the
vehicle warranty. To pull a trailer
correctly, follow the advice in this
section and see your dealer for
important information about
towing a trailer with the vehicle.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10999311) - 2018 - crc - 11/20/17
Driving and Operating 257
Three important considerations
have to do with weight:
.Weight of the trailer
. Weight of the trailer tongue
. Total weight on the vehicle's
tires
Weight of the Trailer
How heavy can a trailer safely be?
Speed, altitude, road grades,
outside temperature, special
equipment, the dimensions of the
front of the trailer, and the amount of
tongue weight the vehicle can carry
must be considered. See “Weight of
the Trailer Tongue” later in this
section.
Maximum trailer weight is calculated
assuming only the driver is in the
tow vehicle and it has all the
required trailering equipment. The
weight of additional optional
equipment, passengers, and cargo
in the tow vehicle must be
subtracted from the maximum trailer
weight. Use the following chart to determine
how much the vehicle can weigh,
based upon the vehicle model and
options.