2021 BUICK ENCLAVE ECU

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
274 Vehicle Care
2. Lift up on the latch in the middle of thewiper blade where the wiper arm
attaches.
3. With the latch open, pull the wiper blade down toward the windshield far enough
to release it from the J-hooked end of
the wiper arm.
4. Remove the wiper blade.
5. Reverse Steps 1–3 for wiper blade replacement.
Caution
Damage may occur if the wiper blades
are not in contact with the windshield
before turning on the wiper system.
Rear Wiper Blade Replacement
To replace the rear wiper blade:
1. Slide a plastic tool under the cover andpush upward to unsnap.
2. Slide the cover toward the wiper blade tip to unhook it from the blade
assembly.
3. Remove the cover.
4. Lift the wiper arm away from the windshield.
5. Push the release lever (2) to disengagethe hook and push the wiper arm (1) out
of the blade assembly (3).
6. Push the new blade assembly securely on the wiper arm until the release lever
clicks into place.
7. To reinstall the cover, ensure that the cover hook slides into the slot in the
blade assembly.
8. Snap the cover down to secure.
Windshield Replacement
Driver Assistance Systems
If the windshield needs to be replaced and
the vehicle is equipped with a front camera
sensor for the Driver Assistance Systems, a
GM replacement windshield is
recommended. The replacement windshield
must be installed according to GM
specifications for proper alignment. If it is
not, these systems may not work properly,
they may display messages, or they may
not work at all. See your dealer for proper
windshield replacement.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
302 Vehicle Care
Your dealer will know the kind of wheel that
is needed.
Each new wheel should have the same
load-carrying capacity, diameter, width,
offset, and be mounted the same way as
the one it replaces.
Replace wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System (TPMS)
sensors with new GM original equipment
parts.
{Warning
Using the wrong replacement wheels,
wheel bolts, or wheel nuts can be
dangerous. It could affect the braking and
handling of the vehicle. Tires can lose air,
and cause loss of control, causing a crash.
Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake cooling,
speedometer or odometer calibration,
headlamp aim, bumper height, vehicle
ground clearance, and tire or tire chain
clearance to the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one is
dangerous. How it has been used or how
far it has been driven may be unknown.
It could fail suddenly and cause a crash.
When replacing wheels, use a new GM
original equipment wheel.
Tire Chains
{Warning
If the vehicle has a tire size other than
255/65R18, do not use tire chains. There is
not enough clearance. Tire chains used on
a vehicle without the proper amount of
clearance can cause damage to the
brakes, suspension, or other vehicle parts.
The area damaged by the tire chains
could cause loss of control and a crash.
Use another type of traction device only
if its manufacturer recommends it for the
vehicle's tire size combination and road
conditions. Follow that manufacturer's
instructions. To avoid vehicle damage,
drive slow and readjust or remove the(Continued)
Warning (Continued)
traction device if it contacts the vehicle.
Do not spin the wheels. If traction
devices are used, install them on the
front tires.
Caution
If the vehicle is equipped with 255/65R18
size tires, use tire chains only where legal
and only when necessary. Use low profile
chains that add no more than 12 mm
thickness to the tire tread and inner
sidewall. Use chains that are the proper
size for the tires. Install them on the tires
of the front axle. Do not use chains on
the tires of the rear axle. Tighten them
as tightly as possible with the ends
securely fastened. Drive slowly and follow
the chain manufacturer's instructions.
If the chains contact the vehicle, stop and
retighten them. If the contact continues,
slow down until it stops. Driving too fast
or spinning the wheels with chains on
will damage the vehicle.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
308 Vehicle Care
To store the flat tire:
1. Remove the cable package from underthe spare tire, jack, and tools.
2. Remove the small cap by tapping the back of the cap with the extension of
the shaft, if the vehicle has aluminum
wheels.
3. Put the flat tire in the rear storage area with the valve stem facing the rear of
the vehicle.
4. Pull the cable through the door striker and the center of the wheel.
5. Lower the liftgate enough to be able tohook the cable onto the outside portion
of the liftgate hinges.
6. Hook the other end of the cable onto the outside portion of the liftgate hinge
on the other side of the vehicle.
7. Pull on the cable to make sure it is secure.8. Make sure the metal tube is centered atthe striker. Push the tube toward the
front of the vehicle.
9. Close the liftgate and make sure it is fully latched.
The compact spare is for temporary use
only. Replace the compact spare tire with a
full-size tire as soon as you can.
Storing the Compact Spare Tire and
Tools
To store the spare tire and tools: 1. Open the liftgate. See Liftgate018.
2. Lift the load floor.
3. Remove the cargo management system.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
312 Vehicle Care
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
Caution
Improper use of the tow eye can damage
the vehicle. If equipped, use the tow eye
to load a disabled vehicle onto a flatbed
tow truck from a flat road surface, or to
move the vehicle a short distance. Use
caution and low speeds. The transmission
must be in (N) Neutral when moving the
vehicle.GM recommends a flatbed tow truck to
transport a disabled vehicle. Use ramps to
help reduce approach angles, if necessary.
A towed vehicle should have its drive wheels
off the ground. Contact Roadside Assistance
or a professional towing service if the
disabled vehicle must be towed.
Front Attachment Points
The vehicle is equipped with specific
attachment points to be used by the towing
provider. These holes may be used to pull
the vehicle from a flat road surface onto the
flatbed tow truck.
Recreational Vehicle Towing
Recreational vehicle towing means towing
the vehicle behind another vehicle, such as
behind a motor home. The two most
common types of recreational vehicle
towing are known as dinghy towing and
dolly towing. Dinghy towing is towing the
vehicle with all four wheels on the ground.
Dolly towing is towing the vehicle with two
wheels on the ground and two wheels up
on a device known as a dolly.
Here are some important things to consider
before recreational vehicle towing:
.Before towing the vehicle, become
familiar with the local laws that apply to
recreational vehicle towing. These laws
may vary by region.
.The towing capacity of the towing
vehicle. Be sure to read the tow vehicle
manufacturer's recommendations.
.How far the vehicle will be towed. Some
vehicles have restrictions on how far and
how long they can be towed.
.The proper towing equipment. See your
dealer or trailering professional for
additional advice and equipment
recommendations.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Vehicle Care 313
.If the vehicle is ready to be towed. Just
as preparing the vehicle for a long trip,
make sure the vehicle is prepared to be
towed.
Caution
Use of a shield mounted in front of the
vehicle grille could restrict airflow and
cause damage to the transmission. The
repairs would not be covered by the
vehicle warranty. If using a shield, only
use one that attaches to the towing
vehicle.
Dinghy Towing
Caution
If the vehicle is towed with all four
wheels on the ground, the drivetrain
components could be damaged. The
repairs would not be covered by the
vehicle warranty. Do not tow the vehicle
with all four wheels on the ground.
The vehicle is not designed to be towed
with all four wheels on the ground. If the
vehicle must be towed, a dolly should be
used. See the following information on dolly
towing.
Dolly Towing
Driving onto a Dolly 1. Park the vehicle on level ground in front of the dolly and turn the vehicle off.
2. Make sure the parking brake is released.
3. Press and hold ENGINE START/STOP with your foot off the brake for five seconds.
4. Hold the brake pedal and press the parking brake switch for 15 seconds until
the service parking brake light flashes.
5. While the service parking brake light is still flashing, remove your foot from the
brake pedal and release the parking
brake switch.
6. Immediately press and release the parking brake switch again while the
service park brake light is still flashing.
7. Start the vehicle and drive onto the dolly.
8. Place the vehicle in P (Park).
9. Turn off the vehicle.
10. Open the hood.
11. Exit the vehicle and secure the vehicle onto the dolly.
12. Disconnect the negative (–) terminal connector from the 12-volt battery.
13. Close the hood of the vehicle.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
314 Vehicle Care
Removing the Vehicle from a Dolly1. Make sure the vehicle is secured to the dolly.
2. Open the door and open the hood of the vehicle.
3. Connect the negative (-) terminal connector from the 12-volt battery.
4. Press and hold ENGINE START/STOP with your foot off the brake for five seconds.
5. Hold the brake pedal and press the parking brake switch for five seconds
until the parking brake light flashes.
6. Turn the vehicle off.
7. Unsecure the vehicle and remove it from the dolly.
8. Do not drive in Service Mode with the parking brake setTowing the Vehicle from the RearCaution
Towing the vehicle from the rear could
damage it. Also, repairs would not be
covered by the vehicle warranty. Never
have the vehicle towed from the rear.
Do not tow the vehicle from the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory. Use a
de-icing agent only when absolutely
necessary, and have the locks greased after
using. See Recommended Fluids and
Lubricants 0331.
Washing the Vehicle
To preserve the vehicle's finish, wash it
often and out of direct sunlight.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they can
damage the vehicle's paint, metal,
(Continued)

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Vehicle Care 321
.Do not place anything on top of the
driver side floor mat.
.Use only a single floor mat on the
driver side.
.Do not place one floor mat on top of
another.
Button Retainer
Some vehicles have floor mats with a
button-type retainer.
Removing and Replacing the Floor Mat1. Pull up on the rear of the mat to unlock and remove.
2. Reinstall the floor mat by lining up the floor mat opening over the carpet
retainer and snapping into position. 3. Make sure the floor mat is properly
secured. Verify the floor mat does not
interfere with the pedals.
Cleaning Rubber Floor Mats (All-Weather
Mats and Floor Liners)
{Warning
Do not use cleaners that contain silicone,
wax-based products, or cleaners that
increase gloss on rubber floor mats/liners.
These cleaners can permanently change
the appearance and feel of the rubber
and can make the floor mats/liners
slippery. Your foot could slip while
operating the vehicle, and you could lose
control, resulting in a crash. You or
others could be injured.
Use a soft cloth and/or a brush dampened
with water to remove dust and loose dirt.
For more thorough cleaning, use a mild soap
solution.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
338 Customer Information
Customer Information
Customer Information
Customer Satisfaction Procedure . . . . . . 338
Customer Assistance Offices . . . . . . . . . . . 340
Customer Assistance for Text Telephone(TTY) Users . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Online Owner Center . . . . . . . . . . . . . . . . . . 340
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Roadside Assistance Program . . . . . . . . . . 341
Scheduling Service Appointments . . . . . . 342
Courtesy Transportation Program . . . . . 343
Collision Damage Repair . . . . . . . . . . . . . . . 343
Publication Ordering Information . . . . . . 345
Radio Frequency Statement . . . . . . . . . . . 346
Reporting Safety Defects
Reporting Safety Defects to the United States Government . . . . . . . . . . . . . . . . . . 346
Reporting Safety Defects to the Canadian Government . . . . . . . . . . . . . . . 346
Reporting Safety Defects to General Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Vehicle Data Recording and Privacy
Vehicle Data Recording and Privacy . . . 347
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Event Data Recorders . . . . . . . . . . . . . . . . . . 348
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Infotainment System . . . . . . . . . . . . . . . . . . 348Customer Information
Customer Satisfaction Procedure
Your satisfaction and goodwill are important
to your dealer and to Buick. Normally, any
concerns with the sales transaction or the
operation of the vehicle will be resolved by
your dealer's sales or service departments.
Sometimes, however, despite the best
intentions of all concerned,
misunderstandings can occur. If your concern
has not been resolved to your satisfaction,
the following steps should be taken:
STEP ONE : Discuss your concern with a
member of dealership management.
Normally, concerns can be quickly resolved
at that level. If the matter has already been
reviewed with the sales, service, or parts
manager, contact the owner of your
dealership or the general manager.
STEP TWO : If after contacting a member of
dealership management, it appears your
concern cannot be resolved by your
dealership without further help, in the U.S.,
call 1-800-521-7300. In Canada, contact
General Motors of Canada Customer Care
Centre at 1-800-263-3777 (English) or
1-800-263-7854 (French).