2020 BUICK ENVISION lumbar support

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/25/19
Seats and Restraints 33
Seats and
Restraints Head Restraints Head Restraints . . . . . . . . . . . . . . . 34
Front Seats Power Seat Adjustment . . . . . . . . 36
Lumbar Adjustment . . . . . . . . . . . . 36
Thigh Support Adjustment . . . . . 37
Reclining Seatbacks . . . . . . . . . . . 37
Memory Seats . . . . . . . . . . . . . . . . . 38
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 41
Rear Seats Rear Seats . . . . . . . . . . . . . . . . . . . . 42
Rear Seat Armrest . . . . . . . . . . . . . 44
Heated Rear Seats . . . . . . . . . . . . 45
Seat Belts Seat Belts . . . . . . . . . . . . . . . . . . . . . 45
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . 46
Lap-Shoulder Belt . . . . . . . . . . . . . 48
Seat Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . . . 51
Seat Belt Extender . . . . . . . . . . . . . 52
Safety System Check . . . . . . . . . . 52 Seat Belt Care . . . . . . . . . . . . . . . . . 52
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . 53
Airbag System Airbag System . . . . . . . . . . . . . . . . . 54
Where Are the Airbags? . . . . . . . 55
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 57
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . 58
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 58
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . 59
Passenger Sensing System . . . 60
Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 65
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 65
Airbag System Check . . . . . . . . . . 66
Replacing Airbag System Parts
after a Crash . . . . . . . . . . . . . . . . . 66
Child Restraints Older Children . . . . . . . . . . . . . . . . . 67
Infants and Young Children . . . . 68
Child Restraint Systems . . . . . . . 71
Where to Put the Restraint . . . . . 72
Lower Anchors and Tethers for
Children (LATCH System) . . . . 73 Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . 81
Securing Child Restraints (With
the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 82
Securing Child Restraints (With
the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . 84

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 3/25/19
36 Seats and Restraints
Front Seats Power Seat Adjustment
{ WarningThe power seats will work with
the ignition off. Children could
operate the power seats and be
injured. Never leave children
alone in the vehicle. To adjust a power seat:
.
Move the seat forward or
rearward by sliding the control
forward or rearward.
.
Raise or lower the front part of
the seat cushion by moving the
front of the control up or down.
.
Raise or lower the entire seat by
moving the rear of the control up
or down.
To adjust the seatback, see
Reclining Seatbacks 0 37 .
To adjust the lumbar support, see
Lumbar Adjustment 0 36 .Lumbar Adjustment
To adjust the lumbar support,
if equipped:
.
Press the front or rear of the
switch to increase or decrease
lumbar support.
.
Press the top or bottom of the
switch to raise or lower the
lumbar support.
.
Release the switch when the
level of support is reached.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13555857) - 2020 - CRC - 2/25/19
Index 351
Index A About Driving the Vehicle . . . . . . . . . 2
Accessories and
Modifications . . . . . . . . . . . . . . . . . . 231
Accessory Power . . . . . . . . . . . . . . . 179
Adaptive Cruise Control . . . . . . . . 192
Add-On Electrical Equipment . . . 228
Additional Information
OnStar . . . . . . . . . . . . . . . . . . . . . . . 342
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 317
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 36
Thigh Support . . . . . . . . . . . . . . . . . . 37
Air Cleaner/Filter, Engine . . . . . . . 241
Air Conditioning . . . . . . . . . . . 153, 156
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 158
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 158
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 66
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 58
Passenger Sensing System . . . . 60
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 58
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 59 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 57
Where Are the Airbags? . . . . . . . . 55
Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 65
Passenger Status Indicator . . . .114
Readiness Light . . . . . . . . . . . . . . .113
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 65
System Check . . . . . . . . . . . . . . . . . . 54
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 25
Alert
Lane Change . . . . . . . . . . . . . . . . . .211
Side Blind Zone (SBZA) . . . . . . .211
All-Season Tires . . . . . . . . . . . . . . . . 266
All-Wheel Drive . . . . . . . . . . . . 185, 252
Antilock Brake System (ABS) . . . 185
Warning Light . . . . . . . . . . . . . . . . . .118
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 300
Interior . . . . . . . . . . . . . . . . . . . . . . . . 304
Armrest
Rear Seat . . . . . . . . . . . . . . . . . . . . . . 44
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 330