2018 BUICK LACROSSE automatic transmission

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
In Brief 7
1.Air Vents 0157.
2. Exterior Lamp Controls 0144.
Fog Lamps 0147.
Instrument Panel Illumination
Control 0148.
3. Turn and Lane-Change Signals
0147.
4. Tap Shift Controls (If Equipped). See Manual Mode
0 185.
5. Instrument Cluster 0110.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) 0126.
6. Windshield Wiper/Washer
0105.
7. Hazard Warning Flashers
0146.
8. Light Sensor. See Automatic
Headlamp System 0145.
9. Infotainment 0151.
10. Dual Automatic Climate Control
System 0152.
11. Traction Control/Electronic
Stability Control 0190. Parking Assist Button. See
Driver Assistance Systems
0
203.
SPORT Button (If Equipped).
See Selective Ride Control
0 192.
Lane Keep Assist (LKA) 0216
(If Equipped).
Automatic Parking Assist
Button (If Equipped). See
Driver Assistance Systems
0 203.
12. Shift Lever. See Automatic
Transmission 0181.
13. ENGINE START/STOP Button (Out of View). See Ignition
Positions 0170.
14. Steering Wheel Controls. See the infotainment manual.
Driver Information Center (DIC)
Controls. See Driver
Information Center (DIC) 0126.
15. Horn 0105.
16. Steering Wheel Adjustment
0104 (Out of View). 17.
Cruise Control 0193 (If
Equipped).
Adaptive Cruise Control 0195
(If Equipped).
Forward Collision Alert (FCA)
System 0208 (If Equipped).
Heated Steering Wheel 0104
(If Equipped).
18. Head-Up Display (HUD) 0129
(If Equipped).
19. Hood Release (Out of View). SeeHood 0230.
20. Front Storage.
21. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0117.
22. Electric Parking Brake 0188.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
18 In Brief
Transmission
Tap Shift
If equipped, Tap Shift allows you to
shift an automatic transmission
similar to a manual transmission. To
use the Tap Shift feature:1. When in D (Drive), pull back on the shift lever to enter
M (Manual Mode).
2. Use Tap Shift to manually shift the automatic transmission.
3. To exit, pull back on the shift lever to go from M (Manual
Mode) back to D (Drive).
See Manual Mode 0185.
Vehicle Features
Infotainment System
See the infotainment manual for
information on the radio, audio
players, phone, navigation system,
and voice or speech recognition.
It also includes information on
settings.
Steering Wheel Controls
The infotainment system can be
operated by using the steering
wheel controls. See "Steering
Wheel Controls" in the infotainment
manual.
Cruise Control
5:Press to turn cruise control on
or off. A white indicator comes on in
the instrument cluster.
RES+ : If there is a set speed in
memory, press the control up briefly
to resume to that speed or press
and hold to accelerate. If cruise
control is already engaged, use to
increase vehicle speed.
SET− :Press the control down
briefly to set the speed and activate
cruise control. If cruise control is
already engaged, use to decrease
vehicle speed.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
In Brief 23
eAssist Features
eAssist Overview
Vehicles with the 2.5L engine have
eAssist, with additional features that
contribute to increased efficiency.
Vehicles with eAssist have an
automatic engine Stop/Start feature.
This feature saves fuel by shutting
the engine off when the vehicle is
stopped. When the engine shuts off
automatically, all the accessories
will continue to operate normally. In
very hot or cold conditions, the
engine may not shut off. See
Starting the Engine0172.
There are two air conditioning
settings available. The MAX setting
maximizes cabin comfort. The ECO
setting maximizes efficiency
allowing more frequent, and longer
engine stops than the MAX setting.
See Dual Automatic Climate Control
System 0152.
Vehicles with eAssist include an
AUTO STOP indicator on the
tachometer. See Instrument Cluster
0 110. The eAssist system uses a high
voltage battery, which is cooled with
air drawn from the vehicle interior.
The cold air intake for the battery is
under the leading edge of the rear
seat. The exhaust for warm air is in
the trunk. Do not cover the intake or
exhaust. See
Battery - North
America 0247.
High Voltage Safety
Information
Vehicles with eAssist have a
standard 12-volt battery and a high
voltage battery. Only a trained
service technician with the proper
knowledge and tools should inspect,
test, or replace the high voltage
battery. See your dealer if the high
voltage battery needs service.
In emergency situations, first
responders can cut the two clearly
labeled cut points in the engine
compartment to disable the high
voltage battery and air bag systems.
Do not cut the high voltage cable.
Automatic Engine Stop/
Start Feature
Vehicles with eAssist have an
automatic engine Stop/Start feature.
After the engine is started and has
reached operating temperature, this
feature may cause Auto Stop which
will turn the engine off when the
brake pedal is applied and the
vehicle comes to a complete stop.
When the brake pedal is released,
or the accelerator pedal is applied,
the engine will restart. The engine
will continue to run until the next
Auto Stop.
AUTO STOP on the tachometer
signifies that the engine is in Auto
Stop mode. See Tachometer0112.
Remember to put the transmission
in P (Park) and turn the ignition off
before exiting the vehicle.
See Starting the Engine 0172.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 39
WhenQis pressed on the power
door lock switch while the door is
open, a chime will sound three
times indicating delayed locking is
active.
The doors will lock automatically
five seconds after all doors are
closed. If a door is reopened before
that time, the five-second timer will
reset when all doors are closed
again.
Press
Qon the door lock switch
again or press
Qon the RKE
transmitter to lock the doors
immediately.
This feature can also be
programmed. See Vehicle
Personalization 0133.
Automatic Door Locks
The doors will lock automatically
when all doors are closed, the
ignition is on, and the vehicle is
shifted out of P (Park).
To unlock the doors:
.
Press
Kon the power door lock
switch. .
Shift the transmission into
P (Park).
Automatic door locking cannot be
disabled. Automatic door unlocking
can be programmed. See Vehicle
Personalization 0133.
Lockout Protection
When locking is requested with the
driver door open and the ignition is
on or in ACC/ACCESSORY, all the
doors will lock and then the driver
door will unlock.
If the vehicle is off and locking is
requested while a door is open,
when all doors are closed the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is detected and the
number of RKE transmitters inside
has not reduced, the driver door will
unlock and the horn will sound three
times.
This can be manually overridden by
pressing and holding
Qon the
power door lock switch for at least
four seconds. Unlocked Door Anti-Lockout
Unlocked Door Anti-Lockout, when
on, will unlock the driver door if
locking is requested while the driver
door is open. This feature can be
turned on or off using the vehicle
personalization menus. See
Vehicle
Personalization 0133.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Manual Safety Locks

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Seats and Restraints 57
To stop manual recall movement,
release 1, 2, or
B. Recall can also
be stopped by pressing a power
seat, SET, power mirror, or power
steering wheel control, if memory
equipped. The driver or passenger
side mirror must be selected.
Auto Memory Recall
The vehicle identifies the number of
the current driver ’s RKE transmitter
(1–8). See Remote Keyless Entry
(RKE) System Operation 028. If the
RKE transmitter is 1 or 2, and Auto
Memory Recall is programmed on in
vehicle personalization, the
positions saved to the same
memory button number 1 or 2 are
automatically recalled when the
ignition is turned on, or turned from
off to ACC/ACCESSORY. RKE
transmitters 3–8 will not provide
automatic memory recalls.
To turn Auto Memory Recall on or
off, see "Vehicle Personalization
Settings" previously in this section
and Vehicle Personalization 0133. The transmission must be in
P (Park) to initiate Auto Memory
Recall. Auto Memory Recall will
complete if the vehicle is shifted out
of P (Park) prior to reaching the
stored memory position.
To stop Auto Memory Recall
movement, turn the ignition off or
press any of the following memory
controls:
.
Power seat
. Memory SET, 1, 2, or
B
.Power mirror, with the driver or
passenger side mirror selected
. Power steering wheel,
if equipped
If the stored memory seat position
does not automatically recall or
recalls to the wrong positions, the
driver ’s RKE transmitter number (1
or 2) may not match the memory
button number that positions were
saved to. Try storing the position to
the other memory button or try the
other RKE transmitter. Easy Exit Recall
Easy Exit Recall is not linked to an
RKE transmitter. The position stored
to
Bis used for all drivers. To turn
Easy Exit Recall on or off, see
"Vehicle Personalization Settings"
previously in this section and
Vehicle Personalization 0133.
If turned on, the positions saved to
Bare automatically recalled when
one of the following occurs:
. The vehicle is turned off and the
driver door is opened within a
short time.
. The vehicle is turned off with the
driver door open.
To stop Easy Exit Recall movement,
press any of the following memory
controls:
. Power seat
. Memory SET, 1, 2, or
B
.Power mirror, with the driver or
passenger side mirror selected
. Power steering wheel,
if equipped

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
146 Lighting
There is a light sensor on top of the
instrument panel. Do not cover the
sensor; otherwise the headlamps
will come on when they are not
needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
Adaptive Forward
Lighting (AFL)
If equipped, the AFL pivots the
headlamps horizontally to provide
greater road illumination while
turning. To enable AFL, set the
exterior lamp control to the AUTO
position. Moving the switch out of
the AUTO position deactivates the
system. AFL operates when the
vehicle speed is greater than 3 km/h
(2 mph). AFL does not operate
when the transmission is in
R (Reverse). AFL is not immediately
operable after starting the vehicle;
driving a short distance is required
to calibrate the AFL. See Exterior
Lamp Controls 0144.
Hazard Warning Flashers
|:Press to make the front and
rear turn signal lamps flash on and
off. Press again to turn the
flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Driving and Operating 159
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 160
Defensive Driving . . . . . . . . . . . . . 161
Drunk Driving . . . . . . . . . . . . . . . . . 161
Control of a Vehicle . . . . . . . . . . . 161
Braking . . . . . . . . . . . . . . . . . . . . . . . 161
Steering . . . . . . . . . . . . . . . . . . . . . . 162
Off-Road Recovery . . . . . . . . . . . 162
Loss of Control . . . . . . . . . . . . . . . 163
Driving on Wet Roads . . . . . . . . 163
Hill and Mountain Roads . . . . . 164
Winter Driving . . . . . . . . . . . . . . . . 165
If the Vehicle Is Stuck . . . . . . . . 166
Vehicle Load Limits . . . . . . . . . . . 166
Starting and Operating
New Vehicle Break-In . . . . . . . . . 170
Ignition Positions . . . . . . . . . . . . . 170
Starting the Engine . . . . . . . . . . . 172
Engine Heater . . . . . . . . . . . . . . . . 175
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 176
Shifting Into Park . . . . . . . . . . . . . 176
Shifting out of Park . . . . . . . . . . . 177
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 179 Extended Parking . . . . . . . . . . . . 179
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 180
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . 180
Automatic Transmission
Automatic Transmission . . . . . . 181
Manual Mode . . . . . . . . . . . . . . . . . 185
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 187
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 187
Electric Parking Brake . . . . . . . . 188
Brake Assist . . . . . . . . . . . . . . . . . . 189
Automatic Vehicle Hold (AVH) . . . . . . . . . . . . . . . . . . 189
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . 190
Selective Ride Control . . . . . . . . 192
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 193
Adaptive Cruise Control . . . . . . 195
Driver Assistance Systems
Driver Assistance Systems . . . 203 Assistance Systems for
Parking or Backing . . . . . . . . . . 204
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 207
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . 208
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 210
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . 211
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 213
Lane Change Alert (LCA) . . . . . 214
Lane Departure Warning (LDW) . . . . . . . . . . . . . 215
Lane Keep Assist (LKA) . . . . . . 216
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 218
California Fuel Requirements . . . . . . . . . . . . . . . 218
Fuels in Foreign Countries . . . 219
Fuel Additives . . . . . . . . . . . . . . . . 219
Filling the Tank . . . . . . . . . . . . . . . 219
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 220
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 221