
Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
76 Seats and Restraints
To remove the head restraint:1. Partially fold the seatback forward. See Rear Seats 041 for additional
information.
2. Press both buttons on the head restraint posts at the same time, and pull up on
the head restraint.
3. Store the head restraint in the cargo area of the vehicle.
4. When the child restraint is removed, reinstall the head restraint before the
seating position is used.
{Warning
With head restraints that are not
installed and adjusted properly, there is a
greater chance that occupants will suffer
a neck/spinal injury in a crash. Do not
drive until the head restraints for all
occupants are installed and adjusted
properly.
To reinstall the head restraint:
1. Insert the head restraint posts into the holes in the top of the seatback. The
notches on the posts must face the
driver side of the vehicle.
2. Push the head restraint down. 3. Try to move the head restraint to make
sure that it is locked in place.
Replacing LATCH System Parts
After a Crash
{Warning
A crash can damage the LATCH system in
the vehicle. A damaged LATCH system
may not properly secure the child
restraint, resulting in serious injury or
even death in a crash. To help make sure
the LATCH system is working properly
after a crash, see your dealer to have the
system inspected and any necessary
replacements made as soon as possible.
If the vehicle has the LATCH system and it
was being used during a crash, new LATCH
system parts may be needed.
New parts and repairs may be necessary
even if the LATCH system was not being
used at the time of the crash.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Driving and Operating 203
The Certification/Tire label may also
show the maximum weights for the
front and rear axles, called the Gross
Axle Weight Rating (GAWR). To find out
the actual loads on the front and rear
axles, weigh the vehicle at a weigh
station. Your dealer can help with this.
Be sure to spread the load equally on
both sides of the centerline.Caution
Overloading the vehicle may cause
damage. Repairs would not be covered by
the vehicle warranty. Do not overload the
vehicle.
{Warning
Things inside the vehicle can strike
and injure people in a sudden stop or
turn, or in a crash.
.Put things in the cargo area of the
vehicle. In the cargo area, put
them as far forward as possible.
Try to spread the weight evenly.
(Continued)
Warning (Continued)
.Never stack heavier things, like
suitcases, inside the vehicle so
that some of them are above the
tops of the seats.
.Do not leave an unsecured child
restraint in the vehicle.
.Secure loose items in the vehicle.
.Do not leave a seat folded down
unless needed.
Starting and Operating
New Vehicle Break-In
Caution
The vehicle does not need an elaborate
break-in. But it will perform better in the
long run if you follow these guidelines:
.Do not drive at any one constant
speed, fast or slow, for the first
800 km (500 mi). Do not make
full-throttle starts. Avoid downshifting
to brake or slow the vehicle.
(Continued)
Caution (Continued)
.Avoid making hard stops for the first
300 km (200 mi) or so. During this
time the new brake linings are not yet
broken in. Hard stops with new linings
can mean premature wear and earlier
replacement. Follow this breaking-in
guideline every time you get new
brake linings.
Following break-in, engine speed and load
can be gradually increased.
Ignition Positions
Vehicles with Keyless Access have
pushbutton starting.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
280 Vehicle Care
FusesUsage
F22 Electronic brake control module
F23 Parking/Trailer lamps
F24 Right trailer stoplamp/ Turnlamp
F25 Steering column lock
F26 –
F27 Left trailer stoplamp/ Turnlamp
F28 –
F29 –
F30 Washer pump F31 –
F32 Left low –beam
headlamp
F33 Daylight running lamps
F34 Horn F35 –
F36 –
F37 Right low –beam
headlamp Fuses
Usage
F38 Automatic headlamp leveling motor
F39 Transmission control module
F40 Left rear bus electrical center/Ignition
F41 Instrument cluster
F42 Heating, ventilation, and air conditioning
F43 Head-up display/ Reflective light auxiliary
display
F44 Communication gateway module/Run/
Crank
F45 –
F46 –
F47 –
F48 –
F49 Interior rearview mirror F50 Fuel system control module/Shifter interface
board/Run/Crank Fuses
Usage
F51 Heated steering wheel
F52 Folding seats switch
F53 Coolant pump
F54 –
F55 Air conditioning clutch
F56 –
F57 Engine control module/ Ignition
F58 Transmission control module/Ignition
F59 Engine control module battery
F60 Engine control module–even
F61 O2 sensor 1/Air flow
F62 –
F63 O2 sensor 2/Canister/ Engine oil/Turbo
F64 Aeroshutter F65 Engine control module powertrain 1

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
Vehicle Care 281
FusesUsage
F66 Engine control module powertrain 2
F67 Engine control module–odd
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 –
Relays Usage
K1 Starter 1
K2 Run/Crank
K3 Vacuum pump
K4 –
K5 Air conditioning Relays
Usage
K6 –
K7 Engine control module
K8 Folding seats
K9 –
K10 Starter 2
Instrument Panel Fuse Block
The instrument panel fuse block is inside the
center console on the passenger side of the
vehicle.
Remove the fuse access door by pulling the
door at the opening. To remove a fuse, use the fuse puller in the
engine compartment fuse block.
The vehicle may not be equipped with all of
the fuses, relays, and features shown.

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 283
Rear Compartment Fuse Block
The rear compartment fuse block is behind a
trim panel on the driver side of the rear
storage compartment.
The trim panel is removed by prying along
the top edge of the trim panel at two
notched locations. Remove the trim panel to
access the fuse block, or see your dealer.
To remove a fuse, use the fuse puller in the
engine compartment fuse block.
The fuse block label is on the back of the
access door in the driver side rear trim
panel.
FusesUsage
F1 –
F2 Trailer Fuses
Usage
F3 Folding seats
F4 Rear blower

Buick Enclave Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14637843) - 2021 - CRC - 12/9/20
360 Index
E
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . 215
Electric Parking Brake Light . . . . . . . . . . . . . . 104
Electrical Equipment, Add-On . . . . . . . . . . . . 256
Electrical SystemEngine Compartment Fuse Block . . . . . . . 278
Fuses and Circuit Breakers . . . . . . . . . . . . . 277
Instrument Panel Fuse Block . . . . . . . . . . . 281
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Rear Compartment Fuse Block . . . . . . . . . 283
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 265
Check Light (Malfunction Indicator) . . . . 102
Compartment Overview . . . . . . . . . . . . . . . . 261
Coolant Temperature Gauge . . . . . . . . . . . . 99
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 266
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 337
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 264
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Power Messages . . . . . . . . . . . . . . . . . . . . . . . . 114
Running While Parked . . . . . . . . . . . . . . . . . 209
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Engine Air Filter Life System . . . . . . . . . . . . . 265 Engine Oil
Temperature Gauge . . . . . . . . . . . . . . . . . . . . . 99
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 252
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 348
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 209
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . . 51
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . . 122
Exterior Lamps Off Reminder . . . . . . . . . . . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . .128
F
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 265
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 125
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Fluid Automatic Transmission . . . . . . . . . . . . . . . 264
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Forward Collision Alert (FCA) System . . . . 235
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346 Front Pedestrian Braking (FPB)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Front Seats Heated and Ventilated . . . . . . . . . . . . . . . . . . 40
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Economy, Driving for Better . . . . . . . . . . . . 191
Filling a Portable Fuel Container . . . . . . . 246
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 244
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 244
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Low Fuel Warning Light . . . . . . . . . . . . . . . 107
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 244
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 244
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Fuses
Engine Compartment Fuse Block . . . . . . . 278
Fuses and Circuit Breakers . . . . . . . . . . . . . 277
Instrument Panel Fuse Block . . . . . . . . . . . 281
Rear Compartment Fuse Block . . . . . . . . . 283
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 118Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Gauges Engine Coolant Temperature . . . . . . . . . . . . 99
Engine Oil Temperature . . . . . . . . . . . . . . . . . 99