power steering BUICK ENVISION 2019 User Guide

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
176 Driving and Operating
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . 177
Driving Environment . . . . . . . . . . 177
Vehicle Design . . . . . . . . . . . . . . . 177
Distracted Driving . . . . . . . . . . . . 178
Defensive Driving . . . . . . . . . . . . . 178
Drunk Driving . . . . . . . . . . . . . . . . . 179
Control of a Vehicle . . . . . . . . . . . 179
Braking . . . . . . . . . . . . . . . . . . . . . . . 179
Steering . . . . . . . . . . . . . . . . . . . . . . 179
Off-Road Recovery . . . . . . . . . . . 180
Loss of Control . . . . . . . . . . . . . . . 180
Driving on Wet Roads . . . . . . . . 181
Hill and Mountain Roads . . . . . 182
Winter Driving . . . . . . . . . . . . . . . . 182
If the Vehicle Is Stuck . . . . . . . . 184
Vehicle Load Limits . . . . . . . . . . . 184
Starting and Operating
New Vehicle Break-In . . . . . . . . . 188
Ignition Positions . . . . . . . . . . . . . 189
Starting the Engine . . . . . . . . . . . 191
Stop/Start System . . . . . . . . . . . . 191
Engine Heater . . . . . . . . . . . . . . . . 193Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 194
Shifting Into Park . . . . . . . . . . . . . 194
Shifting out of Park . . . . . . . . . . . 195
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 195
Extended Parking . . . . . . . . . . . . 196
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 196
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 197
Automatic Transmission
Automatic Transmission . . . . . . 197
Manual Mode . . . . . . . . . . . . . . . . . 199
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 200
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 200
Electric Parking Brake . . . . . . . . 201
Brake Assist . . . . . . . . . . . . . . . . . . 203
Hill Start Assist (HSA) . . . . . . . . 203
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 203
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 205
Adaptive Cruise Control . . . . . . 208
Driver Assistance Systems
Driver Assistance Systems . . . 215
Assistance Systems forParking or Backing . . . . . . . . . . 217
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 222
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 222
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 224
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 226
Lane Change Alert (LCA) . . . . . 226
Lane Departure Warning (LDW) . . . . . . . . . . . . . 228
Lane Keep Assist (LKA) . . . . . . 228
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 230
Recommended Fuel (2.5L Engine) . . . . . . . . . . . . . . . . . . . . . 230
Recommended Fuel (2.0L Engine) . . . . . . . . . . . . . . . . . . . . . 230
Prohibited Fuels . . . . . . . . . . . . . . 231
Fuels in Foreign Countries . . . 231
Fuel Additives . . . . . . . . . . . . . . . . 231
Filling the Tank . . . . . . . . . . . . . . . 232

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Driving and Operating 179
.Focus on the task of driving.
Drunk Driving
Death and injury associated with
drinking and driving is a global
tragedy.
{Warning
Drinking and then driving is very
dangerous. Your reflexes,
perceptions, attentiveness, and
judgment can be affected by even
a small amount of alcohol. You
can have a serious —or even
fatal —collision if you drive after
drinking.
Do not drink and drive or ride with
a driver who has been drinking.
Ride home in a cab; or if you are
with a group, designate a driver
who will not drink.
Control of a Vehicle
Braking, steering, and accelerating
are important factors in helping to
control a vehicle while driving.
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about three-quarters of a second. In
that time, a vehicle moving at
100 km/h (60 mph) travels 20 m
(66 ft), which could be a lot of
distance in an emergency.
Helpful braking tips to keep in mind
include:
. Keep enough distance between
you and the vehicle in front
of you.
. Avoid needless heavy braking.
. Keep pace with traffic.
If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied. Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering
The vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort. See your dealer if
there is a problem.
If the steering wheel is turned until it
reaches the end of its travel and is
held against that position for an
extended period of time, power
steering assist may be reduced.
If the steering assist is used for an
extended period of time while the
vehicle is not moving, power assist
may be reduced.
Normal use of the power steering
assist should return when the
system cools down.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Driving and Operating 189
Caution (Continued)
breaking-in guideline every
time you get new brake
linings.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The vehicle has an electronic
keyless ignition with pushbutton
start. The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference
to the Keyless Access system. See
Remote Keyless Entry (RKE)
System Operation
028.
To shift out of P (Park), the vehicle
must be in ON/RUN and the brake
pedal must be applied.
Stopping the Engine/Off (No
Indicator Lights)
When the vehicle is stopped, press
ENGINE START/STOP once to turn
the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) 0194.
If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display the
message SHIFT TO PARK in the
Driver Information Center (DIC). When the vehicle is shifted into
P (Park), the ignition system will
turn off.
The vehicle may have an electric
steering column lock. The lock is
activated when the vehicle is
switched to OFF and either front
door is opened. A sound may be
heard as the lock actuates or
releases. The steering column lock
may not release with the wheels
turned off center. If this happens,
the vehicle may not start. Move the
steering wheel from left to right
while attempting to start the vehicle.
If this does not work, the vehicle
needs service.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
190 Driving and Operating
If the vehicle must be turned off in
an emergency:1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and turn the
ignition off. The shift lever must
be in P (Park) to turn the
ignition off.
4. Set the parking brake. See Electric Parking Brake 0201.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
(Continued)
Warning (Continued)
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light)
This mode allows you to use some
electrical accessories when the
engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after
five minutes to prevent battery
rundown.
ON/RUN/START (Green
Indicator Light)
This mode is for driving and starting.
With the ignition off and the brake
pedal applied, pressing the button
once will place the ignition system
in ON/RUN/START. Once engine
cranking begins, release the button.
Engine cranking will continue until
the engine starts. See Starting the
Engine 0191. The ignition will then
remain in ON/RUN.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off and
the brake pedal not applied,
pressing and holding the button for
more than five seconds will place
the vehicle in Service Mode. The
instruments and audio systems will
operate as they do in ON/RUN, but
the vehicle will not be able to be

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Driving and Operating 201
If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses the wheels are
slowing down. If one of the wheels
is about to stop rolling, the computer
will separately work the brakes at
each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
you steer around the obstacle while
braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room up ahead to
stop, even with ABS.Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You may hear the ABS
pump or motor operating and feel
the brake pedal pulsate. This is
normal.
Braking in Emergencies
ABS allows you to steer and brake
at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake
The Electric Parking Brake (EPB)
switch is on the center console. The
EPB can always be activated, even
if the ignition is off. To prevent
draining the battery, avoid repeated
cycles of the EPB when the engine
is not running.
The system has a red parking brake
status light and an amber parking
brake warning light. SeeElectric
Parking Brake Light 0134 and
Service Electric Parking Brake Light
0 134. There are also parking
brake-related Driver Information
Center (DIC) messages. In case of
insufficient electrical power, the EPB
cannot be applied or released.
Before leaving the vehicle, check
the red parking brake status light to
ensure that the parking brake is
applied.
EPB Apply
To apply the EPB:
1. Be sure the vehicle is at a complete stop.
2. Lift up the EPB switch momentarily.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
276 Vehicle Care
FusesUsage
F1 –
F2 DC AC
F3 –
F4 Passenger power seat
F5 Memory seat module Fuses
Usage
F6 Central gateway module
F7 Amplifier
F8 Rear accessory power outlet
F9 Rear heated seat
F10 Logistics relay Fuses
Usage
F11 Rear HVAC
F12 Power liftgate HF sensor
F13 Park lamps
F14 Side blind zone alert
F15 Left parking lamp
F16 Right parking lamp
F17 Body control module 6
F18 Heated steering wheel
F19 Rear drive control module
F20 Lumbar seat
F21 Rear heated seat
F22 Rear drive control module
F23 Trailer left turn signal lamp
F24 Trailer right turn signal lamp

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
316 Vehicle Care
for surface condition. Inspect drum
brake linings/shoes for wear or
cracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually 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 hinge, 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

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
324 Service and Maintenance
.Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 254.
. Inspect brake system. See
Exterior Care 0312.
. 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
0 312.
. Inspect power steering for
proper attachment, connections,
binding, leaks, 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 072.
. 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 0312.
. Check starter switch. See Starter
Switch Check 0264.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0265. .
Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 265.
. 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 is low, service the gas
strut. See Gas Strut(s) 0267.
. Inspect sunroof track and seal,
if equipped. See Sunroof051.

Buick Envision Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12032235) - 2019 - CRC - 6/27/18
Index 373
Reverse Tilt Mirrors . . . . . . . . . . . . . . 48
RoadsDriving, Wet . . . . . . . . . . . . . . . . . . 181
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 343
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 51
Roof Rack System . . . . . . . . . . . . . . 110
Rotation, Tires . . . . . . . . . . . . . . . . . . 291
Routing, Engine Drive Belt . . . . . . 338
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 197
S
Safety Defects ReportingCanadian Government . . . . . . . . 350
General Motors . . . . . . . . . . . . . . . 351
U.S. Government . . . . . . . . . . . . . 350
Safety Locks . . . . . . . . . . . . . . . . . . . . . 39
Safety System Check . . . . . . . . . . . . 72
Scheduling Appointments . . . . . . . 345
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 65 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Extender . . . . . . . . . . . . . . . . . . . . . . . . 72
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 66
Lap-Shoulder Belt . . . . . . . . . . . . . . 68
Reminders . . . . . . . . . . . . . . . . . . . . 129 Seat Belts (cont'd)
Replacing after a Crash . . . . . . . . 73
Use During Pregnancy . . . . . . . . . . 71
Seats
Head Restraints . . . . . . . . . . . . . . . . 54
Heated and Ventilated Front . . . . 61
Heated, Rear . . . . . . . . . . . . . . . . . . . 65
Lumbar Adjustment, Front . . . . . . 56
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 58
Power Adjustment, Front . . . . . . . 56
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Reclining Seatbacks . . . . . . . . . . . . 57
Securing Child Restraints . . . 99, 101
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 139
OnStar . . . . . . . . . . . . . . . . . . . . . . . 355
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 44
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 44
Service . . . . . . . . . . . . . . . . . . . . . . . . . 175 Accessories andModifications . . . . . . . . . . . . . . . . 245
Doing Your Own Work . . . . . . . . 245
Maintenance Records . . . . . . . . 334
Maintenance, General Information . . . . . . . . . . . . . . . . . . 321
Parts Identification Label . . . . . 335
Scheduling Appointments . . . . . 345 Service Electric Parking
Brake Light . . . . . . . . . . . . . . . . . . . . 134
Services Special Application . . . . . . . . . . . 328
Servicing the Airbag . . . . . . . . . . . . . 84
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 265
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 194
Out of Park . . . . . . . . . . . . . . . . . . . 195
Side Blind Zone Alert (SBZA) . . . 226
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 164
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 304
Special Application Services . . . . 328
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 336
Speedometer . . . . . . . . . . . . . . . . . . . 125
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 136
Start Assist, Hill . . . . . . . . . . . . . . . . . 203
Start Vehicle, Remote . . . . . . . . . . . 34
Starter Switch Check . . . . . . . . . . . 264
Starting the Engine . . . . . . . . . . . . . 191
Steering . . . . . . . . . . . . . . . . . . . . . . . . 179 Heated Wheel . . . . . . . . . . . . . . . . .113