2020 BUICK ENCLAVE fuel pressure

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Vehicle Care 321Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinges, unless the
components are plastic. Applying
silicone grease on weatherstrips
with a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced. Sheet Metal Damage If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See “ Finish Care ”
previously in this section. Interior Care To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle ’ s
interior.
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove
hand lotions, sunscreen, and insect
repellent from all interior surfaces or
permanent damage may result.
Use cleaners specifically designed
for the surfaces being cleaned to
prevent permanent damage. Apply
all cleaners directly to the cleaning
cloth. Do not spray cleaners on any
switches or controls. Remove
cleaners quickly.
Before using cleaners, read and
follow all safety instructions on the
label. While cleaning the interior,
open the doors and windows to get
proper ventilation.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
328 Service and Maintenance
Maintenance
Schedule Owner Checks and Services At Each Fuel Stop
.
Check the engine oil level. See
Engine Oil 0 253 .
Once a Month
.
Check the tire inflation
pressures. See Tire Pressure
0 288 .
.
Inspect the tires for wear. See
Tire Inspection 0 295 .
.
Check the windshield washer
fluid level. See Washer Fluid
0 263 .
Engine Oil Change When the CHANGE ENGINE OIL
SOON message displays, have the
engine oil and filter changed within
the next 1 000 km/600 mi. If driven
under the best conditions, the
engine oil life system may not
indicate the need for vehicle service
for up to a year. The engine oil and filter must be changed at least once
a year and the oil life system must
be reset. Your trained dealer
technician can perform this work.
If the engine oil life system is reset
accidentally, service the vehicle
within 5 000 km/3,000 mi since the
last service. Reset the oil life
system when the oil is changed.
See Engine Oil Life System 0 255 .
Engine Air Filter Change When the REPLACE AT NEXT OIL
CHANGE message displays, the
engine air filter should be replaced
at the next engine oil change. When
the REPLACE ENGINE AIR FILTER
SOON message displays, the
engine air filter should be replaced
at the earliest convenience. Reset
the engine air filter life system after
the engine air filter is replaced. See
Engine Air Filter Life System 0 257 .
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years.
This service requires replacement of
the desiccant to help the longevity and efficient operation of the air
conditioning system. This service
can be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation 0 295 .
.
Check engine oil level and oil
life percentage. If needed,
change engine oil and filter,
and reset oil life system. See
Engine Oil 0 253 and
Engine Oil Life System 0 255 .
.
If equipped with the engine air
filter life system, check the air
filter life percentage.
If necessary, replace the engine
air filter and reset the engine air
filter life system. See Engine Air
Filter Life System 0 257 . If the
vehicle is not equipped with the
engine air filter life system,
inspect the engine air cleaner
filter. See Engine Air Cleaner/
Filter 0 257 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 329.
Check engine coolant level. See
Cooling System 0 258 .
.
Check windshield washer fluid
level. See Washer Fluid 0 263 .
.
Check tire inflation pressures.
See Tire Pressure 0 288 .
.
Inspect tire wear. See Tire
Inspection 0 295 .
.
Visually check for fluid leaks.
.
Inspect brake system. See
Exterior Care 0 317 .
.
Visually inspect steering,
suspension, and chassis
components for damage,
including cracks or tears in the
rubber boots, loose or missing
parts, or signs of wear at least
once a year. See Exterior Care
0 317 .
.
Inspect power steering for
proper electrical connections,
binding, cracks, chafing, etc. .
Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or
universal joint looseness,
cracked or missing boots, loose
or missing boot clamps, center
bearing excessive looseness,
loose or missing fasteners, and
axle seal leaks.
.
Check restraint system
components. See Safety System
Check 0 60 .
.
Visually inspect fuel system for
damage or leaks.
.
Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.
Lubricate body components. See
Exterior Care 0 317 .
.
Check starter switch. See Starter
Switch Check 0 267 . .
Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 267 .
.
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.
Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open ability is low, service the
gas strut. See Gas Strut(s)
0 269 .
.
Inspect sunroof track and seal,
if equipped. See Sunroof 0 37 .

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 331Footnotes — Maintenance
Schedule Additional Required
Services - Normal
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition. (3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0 257 .
(4) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced.
(5) Or every five years, whichever
comes first. See Cooling System
0 258 . (6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0 265 .
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0 268 .
(9) Or every 10 years, whichever
comes first. See Gas Strut(s) 0 269 .
(10) Replace air conditioning
desiccant every seven years.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
Service and Maintenance 333Footnotes — Maintenance
Schedule Additional Required
Services - Severe
(1) Or every two years, whichever
comes first. More frequent
passenger compartment air filter
replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
(2) Visually check all fuel and vapor
lines and hoses for proper
attachment, connection, routing, and
condition.
(3) Or every four years, whichever
comes first. If driving in dusty
conditions, inspect the filter at each
oil change or more often as needed.
See Engine Air Cleaner/Filter 0 257 .
(4) Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can overcome the seals and
contaminate the transfer case fluid.
Contaminated fluid will decrease the
life of the transfer case and/or axles
and should be replaced.
(5) Or every five years, whichever
comes first. See Cooling System
0 258 .
(6) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.
(7) Replace brake fluid every five
years. See Brake Fluid 0 265 .
(8) Or every 12 months, whichever
comes first. See Wiper Blade
Replacement 0 268 .
(9) Or every 10 years, whichever
comes first. See Gas Strut(s) 0 269 .
(10) Replace air conditioning
desiccant every seven years. Special Application
Services .
Severe Commercial Use
Vehicles Only: Lubricate chassis
components every oil change.
.
Have underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 317 .

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
372 Index Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 156
E Electric Parking Brake . . . . . . . . . . 198
Electric Parking Brake Light . . . . 124
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 246
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 273
Fuses and Circuit Breakers . . . 273
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 277
Overload . . . . . . . . . . . . . . . . . . . . . 272
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 278
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 359
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 257
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 122
Compartment Overview . . . . . . . 252
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . .118
Cooling System . . . . . . . . . . . . . . . 258
Drive Belt Routing . . . . . . . . . . . . 343 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . 190
Heater . . . . . . . . . . . . . . . . . . . . . . . . 185
Oil Life System . . . . . . . . . . . . . . . 255
Oil Pressure Light . . . . . . . . . . . . 128
Overheating . . . . . . . . . . . . . . . . . . 262
Power Messages . . . . . . . . . . . . . 136
Running While Parked . . . . . . . . 191
Starting . . . . . . . . . . . . . . . . . . . . . . . 183
Engine Air Filter Life System . . . . 257
Engine Oil
Temperature Gauge . . . . . . . . . . .118
Entry Lighting . . . . . . . . . . . . . . . . . . . 152
Equipment, Towing . . . . . . . . . . . . . 241
Event Data Recorders . . . . . . . . . . 356
Exit Lighting . . . . . . . . . . . . . . . . . . . . 153
Extended Parking . . . . . . . . . . . . . . . 189
Extender, Seat Belt . . . . . . . . . . . . . . 60
Exterior Lamp Controls . . . . . . . . . 146
Exterior Lamps Off Reminder . . . 148
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 154
F Filter,
Engine Air Cleaner . . . . . . . . . . . 257
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 148
Flashers, Hazard Warning . . . . . . 150 Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 302
Changing . . . . . . . . . . . . . . . . . . . . . 304
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 324
Fluid
Automatic Transmission . . . . . . 256
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 265
Washer . . . . . . . . . . . . . . . . . . . . . . . 263
Folding Mirrors . . . . . . . . . . . . . . . . . . 30
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 221
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 354
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 224
Front Seats
Heated and Ventilated . . . . . . . . . . 46
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 232
Economy, Driving for Better . . . 165
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 234
Filling the Tank . . . . . . . . . . . . . . . 232
Foreign Countries . . . . . . . . . . . . 232
Gauge . . . . . . . . . . . . . . . . . . . . . . . . .117
Low Fuel Warning Light . . . . . . . 129
Prohibited Fuels . . . . . . . . . . . . . . 231
Recommended . . . . . . . . . . . . . . . 231
Top Tier . . . . . . . . . . . . . . . . . . . . . . 231

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527524) - 2020 - CRC - 4/10/19
374 Index J Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 311
K Keyless Entry
Remote (RKE) System . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L Labeling, Tire Sidewall . . . . . . . . . . 283
Lamps
Courtesy . . . . . . . . . . . . . . . . . . . . . . 151
Daytime Running (DRL) . . . . . . 149
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 151
Exterior Controls . . . . . . . . . . . . . . 146
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 148
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 154
License Plate . . . . . . . . . . . . . . . . . 271
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 122
On Reminder . . . . . . . . . . . . . . . . . 129
Reading . . . . . . . . . . . . . . . . . . . . . . 151
Lane Change Alert (LCA) . . . . . . . 227
Lane Keep Assist (LKA) . . . . . . . . 229
Lane Keep Assist Light . . . . . . . . . 126
Lap-Shoulder Belt . . . . . . . . . . . . . . . 57 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 90
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . . 81
LED Lighting . . . . . . . . . . . . . . . . . . . . 271
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 152
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Illumination Control . . . . . . . . . . . 151
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Lights
Airbag Readiness . . . . . . . . . . . . . 120
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 125
Brake System Warning . . . . . . . 124
Charging System . . . . . . . . . . . . . 122
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 122
Cruise Control . . . . . . . . . . . . . . . . 130
Door Ajar . . . . . . . . . . . . . . . . . . . . . 130
Electric Parking Brake . . . . . . . . 124
Engine Oil Pressure . . . . . . . . . . 128
Flash-to-Pass . . . . . . . . . . . . . . . . . 148
High-Beam On . . . . . . . . . . . . . . . . 129
High/Low Beam Changer . . . . . 148
Lane Keep Assist . . . . . . . . . . . . . 126 Lights (cont'd)
Low Fuel Warning . . . . . . . . . . . . 129
Seat Belt Reminders . . . . . . . . . . 120
Security . . . . . . . . . . . . . . . . . . . . . . 129
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 125
Sport Mode . . . . . . . . . . . . . . . . . . . 125
StabiliTrak OFF . . . . . . . . . . . . . . . 127
Tire Pressure . . . . . . . . . . . . . . . . . 128
Tow/Haul Mode . . . . . . . . . . . . . . . 125
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 127
Traction Off . . . . . . . . . . . . . . . . . . . 127
Locks
Automatic Door . . . . . . . . . . . . . . . . . 19
Delayed Locking . . . . . . . . . . . . . . . . 19
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lockout Protection . . . . . . . . . . . . . . 20
Power Door . . . . . . . . . . . . . . . . . . . . . 19
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Loss of Control . . . . . . . . . . . . . . . . . 168
Low Fuel Warning Light . . . . . . . . . 129
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 81
Lumbar Adjustment . . . . . . . . . . . . . . 42
Front Seats . . . . . . . . . . . . . . . . . . . . . 42