maintenance BUICK ENCLAVE 2020 Service Manual

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 335Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi-point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.
Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.
With a multi-point inspection,
your dealer can check the lamps
and note any concerns. Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.
Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
.
As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs
of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
.
Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
.
Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle ’ s interior and
exterior, see Interior Care 0 321 and
Exterior Care 0 317 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
336 Service and Maintenance Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
.
Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
.
Your dealer has the required
equipment to ensure proper
wheel alignment. Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
.
Signs of damage include
scratches, cracks, and chips.
.
Trained dealer technicians can
inspect the windshield and
recommend proper replacement
if needed. Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
.
Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
.
Trained dealer technicians can
check the wiper blades and
replace them when needed.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 337
Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Usage Fluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Cooling System 0 258 .
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity
grade. ACDelco dexos1 full synthetic is recommended. See Engine Oil
0 253 .
Hood Latch Assembly, Secondary
Latch, Pivots, Spring Anchor, and
Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in
Canada 89021674) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19353126, in
Canada 19353127).
Key Lock Cylinders, Hood and Door
Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip lubricant (GM Part No. 3634770, in Canada 10953518) or
equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
338 Service and Maintenance
Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 23321606 A3212C
Engine Oil Filter 19330000 PF63E
Passenger Compartment Air Filter 13508023 CF179C
Spark Plugs 12622561 41-109
Wiper Blades
Front Driver – 60 cm (23.6 in) 84580856 —
Front Passenger – 50 cm (19.7 in) 84580859 —
Rear – 27.5 cm (10.8 in) 84177374 —

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 339
Maintenance Records After the scheduled services are performed, record the date, odometer reading, who performed the service, and the
type of services performed in the boxes provided. Retain all maintenance receipts.
Date Odometer
Reading Serviced By Services Performed

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Customer Information 347All Overseas Locations Please contact the local General
Motors Business Unit.
Customer Assistance for
Text Telephone (TTY)
Users To assist customers who are deaf,
hard of hearing, or speech-impaired
and who use Text Telephones
(TTYs), Buick has TTY equipment
available at its Customer Assistance
Center. Any TTY user can
communicate with Buick by dialing:
1-800-832-8425. TTY users in
Canada can dial 1-800-263-3830.
Online Owner Center Online Owner Experience
(U.S.) my.buick.com
The Buick online owner experience
allows access to videos, articles,
and vehicle health specific to your
Buick as well as your OnStar
Account information all in one place. Membership Benefits
E : Download owner ’ s manuals
and view vehicle-specific how-to
videos.
G : View maintenance schedules,
alerts, and Vehicle Diagnostic
Information. Schedule service
appointments.
I : View and print dealer-recorded
service records and self-recorded
service records.
D : Select a dealer and view
locations, maps, phone numbers,
and hours.
r : Track your vehicle ’ s warranty
information.
J : View active recalls by Vehicle
Identification Number (VIN). See
Vehicle Identification Number (VIN)
0 340 .
H : Compare and shop for Buick
and OnStar plans and services.
View GM Card and SiriusXM
information (if equipped).
F : Chat with online help
representatives. See my.buick.com to register your
vehicle.
Buick Owner Centre (Canada)
mybuick.ca Visit the Buick Owner Centre at
mybuick.ca (English) or my.buick.ca
(French) to access similar benefits
to the U.S. site.
GM Mobility
Reimbursement Program
This program is available to
qualified applicants for cost
reimbursement, up to certain limits,
of eligible aftermarket adaptive
equipment required for the vehicle,
such as hand controls or a
wheelchair/scooter lift for the
vehicle.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Customer Information 353repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company. In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Publication Ordering
Information Service Manuals Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature Owner ’ s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’ s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’ s manuals, warranty
manuals, infotainment manuals, and portfolios. Portfolios include an
owner ’ s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.
Current and Past Models Service manuals and customer
literature are available for many
current and past model year GM
vehicles.
To order, call 1-800-551-4123
Monday – Friday, 8:00 a.m. – 6:00 p.m.
eastern time
For credit card orders only (VISA,
MasterCard, or Discover), see
Helm, Inc. at: www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S. funds.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
368 Connected Services vehicles, the SSID and
password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle ’ s
Wi-Fi hotspot will connect
automatically to your mobile
devices. Manage data usage by
turning Wi-Fi on or off on your
mobile device, by using the myBuick
mobile app, or by contacting an
OnStar Advisor. On some vehicles,
Wi-Fi can also be managed from the
Wi-Fi Hotspot menu.
MyBuick Mobile App (If Available)
Download the myBuick mobile app
to compatible Apple and Android
smartphones. Buick users can
access the following services from a
smartphone:
.
Remotely start/stop the vehicle,
if factory-equipped.
.
Lock/unlock doors, if equipped
with automatic locks.
.
Activate the horn and lamps. .
Check the vehicle ’ s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
.
Send destinations to the vehicle.
.
Locate the vehicle on a map
(U.S. market only).
.
Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
.
Locate a dealer and schedule
service.
.
Request roadside assistance.
.
Set a parking reminder with pin
drop, take a photo, make a note,
and set a timer.
.
Connect with Buick on social
media.
Features are subject to change. For
myBuick mobile app information and
compatibility, see my.buick.com.
An active OnStar or connected
service plan may be required.
A compatible device,
factory-installed remote start, and power locks are required. Data rates
apply. See www.onstar.com for
details and system limitations.
Remote Services Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
Marketplace OnStar Advisors can provide offers
from restaurants and retailers on
your route, help locate hotels,
or book a room. These services
vary by market.
Diagnostics By monitoring and reporting on the
vehicle ’ s key systems, OnStar
Advanced Diagnostics, if equipped,
provides a way to keep up on
maintenance. Capabilities vary by
model. See www.onstar.com for
details and system limitations.
Features are subject to change. For
updates on feature capabilities, see
my.buick.com. Message and data
rates may apply.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Index 369
Index A Accessories and
Modifications . . . . . . . . . . . . . . . . . . 249
Accessory Power . . . . . . . . . . . . . . . 186
Adaptive Cruise Control . . . . . . . . 206
Add-On Electrical Equipment . . . 246
Additional Information
OnStar . . . . . . . . . . . . . . . . . . . . . . . 360
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 334
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 42
Air Cleaner/Filter, Engine . . . . . . . 257
Air Conditioning . . . . . . . . . . . 156, 160
Air Filter
Life System . . . . . . . . . . . . . . . . . . . 257
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 163
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 162
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 73
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 66
Passenger Sensing System . . . . 68
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 66
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 67 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 65
Where Are the Airbags? . . . . . . . . 63
Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 72
Passenger Status Indicator . . . 121
Readiness Light . . . . . . . . . . . . . . 120
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 72
System Check . . . . . . . . . . . . . . . . . . 61
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 28
Alert
Lane Change . . . . . . . . . . . . . . . . . 227
Side Blind Zone (SBZA) . . . . . . 226
All-Season Tires . . . . . . . . . . . . . . . . 282
All-Wheel Drive . . . . . . . . . . . . 197, 267
Antilock Brake System (ABS) . . . 197
Warning Light . . . . . . . . . . . . . . . . . 125
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 317
Interior . . . . . . . . . . . . . . . . . . . . . . . . 321
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 348
Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . . . 220

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Index 373Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 273
Fuses and Circuit Breakers . . . 273
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 277
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 278
G Garage Door Opener . . . . . . . . . . . 142
Programming . . . . . . . . . . . . . . . . . 142
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 269
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . .118
Engine Oil Temperature . . . . . . . .118
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Odometer . . . . . . . . . . . . . . . . . . . . . .116
Speedometer . . . . . . . . . . . . . . . . . .116
Tachometer . . . . . . . . . . . . . . . . . . . .116
Trip Odometer . . . . . . . . . . . . . . . . .116
Voltmeter . . . . . . . . . . . . . . . . . . . . . .119
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . .110
General Information
Service and Maintenance . . . . . 326
Towing . . . . . . . . . . . . . . . . . . . . . . . . 234 General Information (cont'd)
Vehicle Care . . . . . . . . . . . . . . . . . . 248
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 96
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 347
H Hazard Warning Flashers . . . . . . . 150
Head Restraints . . . . . . . . . . . . . . . . . 40
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 271
Automatic . . . . . . . . . . . . . . . . . . . . . 149
Bulb Replacement . . . . . . . . . . . . 271
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . . 148
High-Beam On Light . . . . . . . . . . 129
High/Low Beam Changer . . . . . 148
Lamps On Reminder . . . . . . . . . 129
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . 51
Steering Wheel . . . . . . . . . . . . . . . 102
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Heated Mirrors . . . . . . . . . . . . . . . . . . . 31
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 185
Heating . . . . . . . . . . . . . . . . . . . . 156, 160 High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 272
High-Beam On Light . . . . . . . . . . . . 129
High-Speed Operation . . . . . . . . . . 289
Hill and Mountain Roads . . . . . . . . 174
Hill Start Assist (HSA) . . . . . . . . . . 200
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 55
HVAC . . . . . . . . . . . . . . . . . . . . . . 156, 160
I Ignition Positions . . . . . . . . . . . . . . . 181
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 29
Indicator
Pedestrian Ahead . . . . . . . . . . . . 126
Vehicle Ahead . . . . . . . . . . . . . . . . 126
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 76
Information
Publication Ordering . . . . . . . . . . 353
Infotainment . . . . . . . . . . . . . . . . . . . . 155
Infotainment System . . . . . . . . . . . . 357
Instrument Cluster . . . . . . . . . 111, 114
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 32
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2