sunroof BUICK LACROSSE 2018 Owner's Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
In Brief 5
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . 8
Stop/Start System . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 8
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Trunk Release . . . . . . . . . . . . . . . . . . 9
Windows . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . 10
Memory Features . . . . . . . . . . . . . . 11
Heated and Ventilated Seats . . . 12
Head Restraint Adjustment . . . . 12
Seat Belts . . . . . . . . . . . . . . . . . . . . . 13
Passenger Sensing System . . . 13
Mirror Adjustment . . . . . . . . . . . . . . 13
Steering Wheel Adjustment . . . . 14
Interior Lighting . . . . . . . . . . . . . . . . 15
Exterior Lighting . . . . . . . . . . . . . . . 16
Windshield Wiper/Washer . . . . . . 16
Climate Controls . . . . . . . . . . . . . . . 17
Transmission . . . . . . . . . . . . . . . . . . 18
Vehicle Features
Infotainment System . . . . . . . . . . . 18 Steering Wheel Controls . . . . . . . 18
Cruise Control . . . . . . . . . . . . . . . . . 18
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . 19
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . 19
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . 19
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . 19
Lane Keep Assist (LKA) . . . . . . . 20
Lane Change Alert (LCA) . . . . . . 20
Rear Vision Camera (RVC) . . . . 20
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . 20
Parking Assist . . . . . . . . . . . . . . . . . 20
Automatic Parking Assist (APA) . . . . . . . . . . . . . . . . . . 21
Power Outlets . . . . . . . . . . . . . . . . . 21
Universal Remote System . . . . . 21
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 22
eAssist Features
eAssist Overview . . . . . . . . . . . . . . 23
High Voltage Safety Information . . . . . . . . . . . . . . . . . . . 23
Automatic Engine Stop/Start Feature . . . . . . . . . . . . . . . . . . . . . . . 23
Regenerative Braking . . . . . . . . . . 24
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 24
Service . . . . . . . . . . . . . . . . . . . . . . . . 24
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 24
Tire Pressure Monitor . . . . . . . . . . 25
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
E85 or FlexFuel . . . . . . . . . . . . . . . . 25
Engine Oil Life System . . . . . . . . 25
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . 26
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 26

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
22 In Brief
Sunroof
1. Sunroof Switch
2. Power SunshadeSwitch (Rear)
3. Power Sunshade Switch (Sunroof)
On vehicles with a sunroof, the
switches are on the overhead
console.
The ignition must be on, in ACC/
ACCESSORY, or Retained
Accessory Power (RAP) must be
active. See Retained Accessory
Power (RAP) 0176. Sunroof Switch
Express-Open/Express-Close :
To
express-open the sunroof, fully
press and release
~(1). To
express-close, fully press and
release
g(1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
Open/Close (Manual Mode) : To
open the sunroof, press and hold
~(1). To close the sunroof, press
and hold
g(1). To stop the
sunroof partway, release the switch.
The sunshade opens automatically
with the sunroof.
Vent : Press
~(1) to vent the
sunroof. Press
g(1) to close the
sunroof vent.
Power Sunshade Switch (Sunroof)
Open/Close : Press
C(3) to open
the front sunshade. Press
g(3) to
close the front sunshade. The vehicle has an automatic
reversal system that stops the
sunroof from closing when the
reversal system detects an object in
its path.
See
Sunroof 049 and Rear Window
Sunshade 049.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 27
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . 28
Remote Vehicle Start . . . . . . . . . . 34
Door Locks . . . . . . . . . . . . . . . . . . . . 36
Power Door Locks . . . . . . . . . . . . . 38
Delayed Locking . . . . . . . . . . . . . . . 38
Automatic Door Locks . . . . . . . . . 39
Lockout Protection . . . . . . . . . . . . . 39
Safety Locks . . . . . . . . . . . . . . . . . . . 39
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 42
Vehicle Alarm System . . . . . . . . . 42
Immobilizer . . . . . . . . . . . . . . . . . . . . 43
Immobilizer Operation . . . . . . . . . 43
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 44
Power Mirrors . . . . . . . . . . . . . . . . . . 45 Folding Mirrors . . . . . . . . . . . . . . . . . 45
Heated Mirrors . . . . . . . . . . . . . . . . . 45
Automatic Dimming Mirror . . . . . 45
Reverse Tilt Mirrors . . . . . . . . . . . . 45
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 46
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 46
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 46
Power Windows . . . . . . . . . . . . . . . 47
Sun Visors . . . . . . . . . . . . . . . . . . . . . 49
Rear Window Sunshade . . . . . . . 49
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 49
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
a Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 47
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave keys in a vehicle with
children. When there are children
in the rear seat, use the window
lockout button to prevent
operation of the windows. See
Keys027.
Power windows work when the
ignition is on, in ACC/ACCESSORY,
or when Retained Accessory Power
(RAP) is active. See Retained
Accessory Power (RAP) 0176.
Using the window switch, press to
open or pull to close the window.
The windows may be temporarily
disabled if they are used repeatedly
within a short time.
Window Lockout
This feature stops the rear
passenger windows from working.
. PressZto engage the rear
window lockout feature. The
indicator light is on when
engaged.
. Press
Zagain to disengage.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 49
Sun Visors
Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window and, if equipped, extend
along the rod.
Rear Window Sunshade
If equipped, the rear window
sunshade button is on the overhead
console. To open the sunshade,
press and release. The sunshade
will fully extend. To close the
sunshade, press and release the
switch again. The sunshade will fully
close.
The sunshade only operates when
the ignition is on or in ACC/
ACCESSORY.
When shifting the vehicle into
R (Reverse), the sunshade will
automatically retract if it is
extended.
Roof
Sunroof
1. Sunroof Switch
2. Power SunshadeSwitch (Rear)
3. Power Sunshade Switch (Sunroof)
On vehicles with a sunroof, the
switches are on the overhead
console.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
50 Keys, Doors, and Windows
The ignition must be on or in ACC/
ACCESSORY, or Retained
Accessory Power (RAP) must be
active. SeeRetained Accessory
Power (RAP) 0176.
Sunroof Switch
Express-Open/Express-Close : To
express-open the sunroof, fully
press and release
~(1). To
express-close, fully press and
release
g(1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
Open/Close (Manual Mode) : To
open the sunroof, press and hold
~(1). To close the sunroof, press
and hold
g(1). To stop the
sunroof partway, release the switch.
The sunshade opens automatically
with the sunroof.
Vent : Press
~(1) to vent the
sunroof. Press
g(1) to close the
sunroof vent. Power Sunshade Switch (Sunroof)
Open/Close :
Press
C(3) to open
the front sunshade. Press
g(3) to
close the front sunshade.
For the rear window sunshade, refer
to Rear Window Sunshade 049.
Automatic Reversal System
The sunroof has an automatic
reversal system that is only active
when the sunroof is operated in
express-close mode.
If an object is in the path while
express closing, the reversal system
will detect an object, stop, and open
the sunroof again.
If frost or other conditions prevent
closing, override the feature by
closing the sunroof in manual
mode. To stop movement, release
the switch.Dirt and debris may collect on the
sunroof seal or in the track. This
could cause issues with sunroof
operation and noise. It could also
plug the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
176 Driving and Operating
Warning (Continued)
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
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)
Some vehicle accessories may be
used after the ignition is turned off.
The power windows and sunroof,
if equipped, will continue to work for
up to 10 minutes or until any door is
opened.
The infotainment system will
continue to work for 10 minutes,
until the driver door is opened,
or until the ignition is turned on or
placed in ACC/ACCESSORY.
Shifting Into Park
To shift into P (Park):
1. Hold the brake pedal down and set the parking brake. See
Electric Parking Brake 0188. 2. Press the button on top of the
shift lever to shift into P (Park).
See Automatic Transmission
0 181.
3. The P indicator on the shift lever will turn red when the
vehicle is in P (Park).
4. Turn the ignition off.
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the vehicle is not in
P (Park) with the parking brake
set. The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle
can move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when (Continued)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Vehicle Care 255
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
7 Left corner lamp
8 Power windows/ Rearview mirror/
Power seats
9 Engine boost
10 Airbag sensing diagnostic module/
Passenger sensing
module—eAssist
11 DC DC Battery 1
12 Rear window defogger
13 Heated mirrors
14 – Fuses Usage
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
29 Rear vision camera/ Ventilation
30 Malfunction indicator lamp/Shift solenoid Fuses Usage
32 Canister vent solenoid
33 Front heated seats
34 BSM (eAssist)/Fan control module/
Damping control
module (SADS)
35 Fog lamps
36 Fuel module
38 –
39 –
40 Steering columnn lock
41 –
43 Heated steering wheel
44 Headlamp leveling/ Rear seat ventilation
45 –
46 Engine control module/Ignition
47 –

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
312 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 0237.
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 0272.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system.
See Engine Oil 0234 and
Engine Oil Life System 0237.
. Check engine coolant level. See
Cooling System 0239.
. Check windshield washer fluid
level. See Washer Fluid 0245. .
Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0300. Replace worn or
damaged wiper blades. See
Wiper Blade Replacement
0 249.
. Check tire inflation pressures.
See Tire Pressure 0266.
. Inspect tire wear. See Tire
Inspection 0272.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 238.
. Inspect brake system. See
Exterior Care 0300.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0300.
. Check restraint system
components. See Safety System
Check 067.
. 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 0300.
. Check starter switch. See Starter
Switch Check 0248.
. 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) 0249.
. Inspect sunroof track and seal,
if equipped. See Sunroof049.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
358 Index
Roadside AssistanceProgram . . . . . . . . . . . . . . . . . . . . . . . 329
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 49
Rotation, Tires . . . . . . . . . . . . . . . . . . 272
Routing, Engine Drive Belt . . . . . . 324
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 180
S
Safety Defects ReportingCanadian Government . . . . . . . . 336
General Motors . . . . . . . . . . . . . . . 336
U.S. Government . . . . . . . . . . . . . 335
Safety Locks . . . . . . . . . . . . . . . . . . . . . 39
Safety System Check . . . . . . . . . . . . 67
Scheduling Appointments . . . . . . . 331
Sealant Kit, Tire . . . . . . . . . . . . . . . . 280
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 62 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Extender . . . . . . . . . . . . . . . . . . . . . . . . 67
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 63
Lap-Shoulder Belt . . . . . . . . . . . . . . 64
Reminders . . . . . . . . . . . . . . . . . . . . .115
Replacing after a Crash . . . . . . . . 68
Use During Pregnancy . . . . . . . . . . 66
Seats Head Restraints . . . . . . . . . . . . . . . . 52 Seats (cont'd)
Heated and Ventilated Front . . . . 58
Lumbar Adjustment, Front . . . . . . 54
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power Adjustment, Front . . . . . . . 53
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Reclining Seatbacks . . . . . . . . . . . . 54
Securing Child Restraints . . . . 94, 96
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 124
OnStar . . . . . . . . . . . . . . . . . . . . . . . 340
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 42
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 42
Selective Ride Control . . . . . . . . . . 192
Service . . . . . . . . . . . . . . . . . . . . . . . . . 158
Accessories andModifications . . . . . . . . . . . . . . . . 229
Doing Your Own Work . . . . . . . . 229
Maintenance Records . . . . . . . . 321
Maintenance, General
Information . . . . . . . . . . . . . . . . . . 310
Parts Identification Label . . . . . 322
Publications Ordering Information . . . . . . . . . . . . . . . . . . 334
Scheduling Appointments . . . . . 331
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . 120 Services
Special Application . . . . . . . . . . . 316
Servicing the Airbag . . . . . . . . . . . . . 79
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 176
Out of Park . . . . . . . . . . . . . . . . . . . 177
Side Blind Zone Alert (SBZA) . . . 213
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 147
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 292
Special Application Services . . . . 316
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 323
Speedometer . . . . . . . . . . . . . . . . . . . 112
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 121
Start Vehicle, Remote . . . . . . . . . . . 34
Starter Switch Check . . . . . . . . . . . 248
Starting the Engine . . . . . . . . . . . . . 172
Steering . . . . . . . . . . . . . . . . . . . . . . . . 162 Heated Wheel . . . . . . . . . . . . . . . . 104
Wheel Adjustment . . . . . . . . . . . . 104
Wheel Controls . . . . . . . . . . . . . . . 104
Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . 251
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . 101