2017 BUICK LACROSSE roof

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
68 Seats and Restraints
The driver knee airbag is below the
steering column. The front outboard
passenger knee airbag is below the
glove box.Driver Side Shown, PassengerSide Similar
The driver and front outboard
passenger seat-mounted side
impact airbags are in the side of the
seatbacks closest to the door.
The roof-rail airbags for the driver,
front outboard passenger, and
second row outboard passengers
are in the ceiling above the side
windows.Rear Seat Driver Side Shown, Passenger Side Similar
On vehicles with second row
seat-mounted side impact airbags,
they are in the sides of the seatback
closest to the door.
{Warning
If something is between an
occupant and an airbag, the
airbag might not inflate properly
or it might force the object into
that person causing severe injury
or even death. The path of an
inflating airbag must be kept (Continued)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Seats and Restraints 69
Warning (Continued)
clear. Do not put anything
between an occupant and an
airbag, and do not attach or put
anything on the steering wheel
hub or on or near any other
airbag covering.
Do not use seat accessories that
block the inflation path of a
seat-mounted side impact airbag.
Never secure anything to the roof
of a vehicle with roof-rail airbags
by routing a rope or tie‐down
through any door or window
opening. If you do, the path of an
inflating roof-rail airbag will be
blocked.
When Should an Airbag
Inflate?
This vehicle is equipped with
airbags. SeeAirbag System 066.
Airbags are designed to inflate if the
impact exceeds the specific airbag
system's deployment threshold.
Deployment thresholds are used to predict how severe a crash is likely
to be in time for the airbags to
inflate and help restrain the
occupants. The vehicle has
electronic sensors that help the
airbag system determine the
severity of the impact. Deployment
thresholds can vary with specific
vehicle design.
Frontal airbags are designed to
inflate in moderate to severe frontal
or near frontal crashes to help
reduce the potential for severe
injuries, mainly to the driver's or
front outboard passenger's head
and chest.
Whether the frontal airbags will or
should inflate is not based primarily
on how fast the vehicle is traveling.
It depends on what is hit, the
direction of the impact, and how
quickly the vehicle slows down.
Frontal airbags may inflate at
different crash speeds depending on
whether the vehicle hits an object
straight on or at an angle, and
whether the object is fixed or
moving, rigid or deformable, narrow
or wide.
Frontal airbags are not intended to
inflate during vehicle rollovers, in
rear impacts, or in many side
impacts.
In addition, the vehicle has
advanced technology frontal
airbags. Advanced technology
frontal airbags adjust the restraint
according to crash severity.
Knee airbags are designed to inflate
in moderate to severe frontal or
near frontal impacts. Knee airbags
are not designed to inflate during
vehicle rollovers, in rear impacts,
or in many side impacts.
Seat-mounted side impact airbags
are designed to inflate in moderate
to severe side crashes depending
on the location of the impact.
Seat-mounted side impact airbags
are not designed to inflate in frontal
impacts, near frontal impacts,
rollovers, or rear impacts.
A seat-mounted side impact airbag
is designed to inflate on the side of
the vehicle that is struck.
Roof-rail airbags are designed to
inflate in moderate to severe side
crashes depending on the location

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
70 Seats and Restraints
of the impact. In addition, these
roof-rail airbags are designed to
inflate during a rollover or in a
severe frontal impact. Roof-rail
airbags are not designed to inflate in
rear impacts. Both roof-rail airbags
will inflate when either side of the
vehicle is struck, if the sensing
system predicts that the vehicle is
about to roll over on its side, or in a
severe frontal impact.
In any particular crash, no one can
say whether an airbag should have
inflated simply because of the
vehicle damage or repair costs.
What Makes an Airbag
Inflate?
In a deployment event, the sensing
system sends an electrical signal
triggering a release of gas from the
inflator. Gas from the inflator fills the
airbag causing the bag to break out
of the cover. The inflator, the airbag,
and related hardware are all part of
the airbag module.
For airbag locations, seeWhere Are
the Airbags? 067.
How Does an Airbag
Restrain?
In moderate to severe frontal or
near frontal collisions, even belted
occupants can contact the steering
wheel or the instrument panel. In
moderate to severe side collisions,
even belted occupants can contact
the inside of the vehicle.
Airbags supplement the protection
provided by safety belts by
distributing the force of the impact
more evenly over the
occupant's body.
Rollover capable roof-rail airbags
are designed to help contain the
head and chest of occupants in the
outboard seating positions in the
first and second rows. The rollover
capable roof-rail airbags are
designed to help reduce the risk of
full or partial ejection in rollover
events, although no system can
prevent all such ejections. But airbags would not help in many
types of collisions, primarily
because the occupant's motion is
not toward those airbags. See
When
Should an Airbag Inflate? 069.
Airbags should never be regarded
as anything more than a supplement
to safety belts.
What Will You See after
an Airbag Inflates?
After the frontal, knee, and
seat-mounted side impact airbags
inflate, they quickly deflate, so
quickly that some people may not
even realize an airbag inflated.
Roof-rail airbags may still be at least
partially inflated for some time after
they inflate. Some components of
the airbag module may be hot for
several minutes. For location of the
airbags, see Where Are the
Airbags? 067.
The parts of the airbag that come
into contact with you may be warm,
but not too hot to touch. There may
be some smoke and dust coming
from the vents in the deflated
airbags. Airbag inflation does not

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Seats and Restraints 77
If the vehicle has rollover roof-rail
airbags, seeDifferent Size Tires
and Wheels 0270 for additional
important information.
If you have to modify your vehicle
because you have a disability and
you have questions about whether
the modifications will affect the
vehicle's airbag system, or if you
have questions about whether the
airbag system will be affected if the
vehicle is modified for any other
reason, call Customer Assistance.
See Customer Assistance Offices
0 313.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light 0113.
Caution
If an airbag covering is damaged,
opened, or broken, the airbag
may not work properly. Do not
(Continued)
Caution (Continued)
open or break the airbag
coverings. If there are any
opened or broken airbag
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, seeWhere Are the
Airbags? 067. See your dealer
for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
(Continued)
Warning (Continued)
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0113.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
178 Driving and Operating
Warning (Continued)
function. An ungrounded
outlet could cause an
electric shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
it overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
(Continued)
Warning (Continued)
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it
away from moving engine
parts.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
The following vehicle accessories
may be used for up to 10 minutes
after the engine is turned off:
. Infotainment System
. Power Windows
. Sunroof (If Equipped)
. Auxiliary Power Outlet
Power to the audio system will
continue to operate for up to
10 minutes or until the driver door is
opened.
Power to the power windows and
sunroof will continue to operate for
up to 10 minutes or until any door is
opened.
All of these features will work when
the ignition is in ON/RUN or ACC/
ACCESSORY.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
250 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 –
2 –
3 ABS pump
5 AC DC inverter
6 Rear closure Fuses Usage
7 Left corner lamp
8 Power windows/ Rearview mirror/
Power seats
9 Engine boost
10 Semi-active damping system
11 DC DC Battery 1 Fuses Usage
12 Rear window defogger
13 Heated mirrors
14 –
15 Passive entry/ Passive start
16 Front wipers
17 Passenger power seat
18 ABS valve
19 Driver power seat
21 Sunroof
22 Right corner lamp
23 Auto headlamp leveling
24 –
26 Transmission control module/Ignition
27 Instrument panel/ Ignition
28 Electronic precision shift/Ignition

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
298 Service and Maintenance
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.
SeeEngine Oil Life System 0233.
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 0267.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0231 and
Engine Oil Life System 0233.
. Check engine coolant level. See
Engine Coolant 0236.
. Check windshield washer fluid
level. See Washer Fluid 0241. .
Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0286. Replace worn or
damaged wiper blades. See
Wiper Blade Replacement
0 245.
. Check tire inflation pressures.
See Tire Pressure 0261.
. Inspect tire wear. See Tire
Inspection 0267.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 235.
. Inspect brake system. See
Exterior Care 0286.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0286.
. Check restraint system
components. See Safety System
Check 064.
. 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 0286.
. Check starter switch. See Starter
Switch Check 0244.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 245.
. 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. See your
dealer if service is required.
. Inspect sunroof track and seal,
if equipped. See Sunroof047.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Index 343
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . . . 178
Reverse Tilt Mirrors . . . . . . . . . . . . . . 43
Ride Control Systems Messages . . . . . . . . . . . . . . . . . . . . 134
Selective . . . . . . . . . . . . . . . . . . . . . 192
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . 166
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . . 315
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 47
Rotation, Tires . . . . . . . . . . . . . . . . . . 267
Routing, Engine Drive Belt . . . . . . 310
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 181
S
Safety Belts . . . . . . . . . . . . . . . . . . . . . 59
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 60
Lap-Shoulder Belt . . . . . . . . . . . . . . 61
Reminders . . . . . . . . . . . . . . . . . . . . .112
Replacing after a Crash . . . . . . . . 65
Use During Pregnancy . . . . . . . . . . 64
Safety Defects Reporting Canadian Government . . . . . . . . 322 Safety Defects Reporting (cont'd)
General Motors . . . . . . . . . . . . . . . 322
U.S. Government . . . . . . . . . . . . . 321
Safety Locks . . . . . . . . . . . . . . . . . . . . . 38
Safety System Check . . . . . . . . . . . . 64
Scheduling Appointments . . . . . . . 317
Seats
Head Restraints . . . . . . . . . . . . . . . . 50
Heated and Ventilated Front . . . . 55
Lumbar Adjustment, Front . . . . . . 52
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power Adjustment, Front . . . . . . . 51
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Reclining Seatbacks . . . . . . . . . . . . 52
Securing Child Restraints . . . . 92, 94
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Messages . . . . . . . . . . . . . . . . . . . . 135
OnStar®. . . . . . . . . . . . . . . . . . . . . . 326
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 40
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 40
Selective Ride Control . . . . . . . . . . 192
Service . . . . . . . . . . . . . . . . . . . . . . . . . 161 Accessories andModifications . . . . . . . . . . . . . . . . 228
Doing Your Own Work . . . . . . . . 228
Engine Soon Light . . . . . . . . . . . . .114
Maintenance Records . . . . . . . . 307 Service (cont'd)
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 296
Parts Identification Label . . . . . 308
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 320
Scheduling Appointments . . . . . 317
Vehicle Messages . . . . . . . . . . . . 135
Service Electric Parking
Brake Light . . . . . . . . . . . . . . . . . . . . 117
Services Special Application . . . . . . . . . . . 302
Servicing the Airbag . . . . . . . . . . . . . 76
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 179
Out of Park . . . . . . . . . . . . . . . . . . . 179
Side Blind Zone Alert (SBZA) . . . 212
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 151
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 280
Special Application Services . . . . 302
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 309
Speedometer . . . . . . . . . . . . . . . . . . . 110
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . .118
Start Vehicle, Remote . . . . . . . . . . . 33