2017 BUICK LACROSSE key battery

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Keys, Doors, and Windows 27
The vehicle has the keyless ignition.
The key can be used for the locks.
Press the button on the RKE
transmitter to access the key.If it becomes difficult to turn the key
in a vehicle lock, inspect the key
blade for debris. Periodically clean
with a brush or pick.
See your dealer if a new key is
needed.
With an active OnStar subscription,
an OnStar Advisor may remotely
unlock the vehicle. See
OnStar
Overview 0325.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement
0 321.
If there is a decrease in the Remote
Keyless Entry (RKE) operating
range:
. Check the distance. The
transmitter may be too far from
the vehicle.
. Check the location. Other
vehicles or objects may be
blocking the signal.
. Check the transmitter's battery.
See “Battery Replacement” later
in this section. .
If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
The Keyless Access system allows
for vehicle entry when the
transmitter is within 1 m (3 ft). See
“Keyless Access Operation” later in
this section.
The transmitter functions may work
up to 60 m (197 ft) away from the
vehicle.
Other conditions can impact the
performance of the transmitter.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
30 Keys, Doors, and Windows
untilQon the interior door is
pressed, or until the vehicle is
turned on.
Remote Left in Vehicle Alert
When the vehicle is turned off and
an RKE transmitter is left in the
vehicle, the horn will chirp three
times after all doors are closed. To
turn on or off see Vehicle
Personalization 0138.
Remote No Longer in Vehicle Alert
If the vehicle is on, with a door
open, and then all doors are closed,
the vehicle will check for RKE
transmitter(s) inside. If an RKE
transmitter is not detected, the DIC
will display NO REMOTE
DETECTED and the horn will chirp
three times.
This occurs only once each time the
vehicle is driven.
See Vehicle Personalization 0138.
Key Access
To access a vehicle with a weak
transmitter battery, see Door Locks
0 35.Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to the vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
The vehicle can be reprogrammed
so that lost or stolen transmitters no
longer work. Any remaining
transmitters will need to be
reprogrammed. Each vehicle can
have up to eight transmitters
matched to it.
Programming with Recognized
Transmitters
A new transmitter can be
programmed to the vehicle when
there are two recognized
transmitters. To program, the vehicle
must be off and all of the
transmitters, both currently
recognized and new, must be
with you.
1. Place the two recognized transmitters in the cupholder. 2. Remove the key lock cylinder
cap on the driver door handle.
See Door Locks 035.
3. Insert the vehicle key of the new transmitter into the key
lock cylinder on the outside of
the driver door and turn the key
to the unlock position five times
within 10 seconds.
The Driver Information Center
(DIC) displays READY FOR
REMOTE #2, 3, 4 or 5.
4. Place the new transmitter intothe transmitter pocket inside
the armrest storage area.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
32 Keys, Doors, and Windows
7. Remove the transmitter fromthe transmitter pocket and
press
K.
To program additional
transmitters, repeat Steps 4–6.
When all additional transmitters
are programmed, press and
hold ENGINE START/STOP
button for 12 seconds to exit
programming mode.
8. Put the key back into the transmitter.
Starting the Vehicle with a Low
Transmitter Battery
When starting the vehicle, if the
transmitter battery is weak or there
is interference with the signal, the
DIC may display NO REMOTE
DETECTED or NO REMOTE KEY
WAS DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE. See Key
and Lock Messages 0132.
To start the vehicle:
1. Place the transmitter in the transmitter pocket inside the
armrest storage area.
2. With the vehicle in P (Park) or N (Neutral), press the brake
pedal and ENGINE START/
STOP. See Starting the Engine
0 175 for additional information
about the vehicle's keyless
ignition with pushbutton start.
Replace the transmitter battery as
soon as possible.
Battery Replacement
Replace the battery if the DIC
displays a reminder message.
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
The battery is not rechargeable. To
replace the battery:
1. Press the button on the transmitter to remove the key.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Keys, Doors, and Windows 33
2. Insert a flat tool into the bottomof the transmitter and separate
the transmitter into two halves.
3. Remove the battery by pushing on the battery and sliding it
toward the bottom of the
transmitter.5. Insert the new battery, positiveside facing up. Push the
battery down until it is held in
place. Replace with a CR2032
or equivalent battery.
6. Snap the battery cover back on to the transmitter.
Remote Vehicle Start
If available, this feature allows the
engine to be started from outside
the vehicle.
The
/button will be on the RKE
transmitter if the vehicle has remote
start. Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote
start to have the vehicle in view.
Check local regulations for any
requirements.
Starting the Engine Using Remote
Start
To start the engine using the remote
start feature:
1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately after completing Step 2, press and hold
/for at
least four seconds or until the
turn signal lamps flash. The
turn signal lamps flashing
confirms the request to remote
start the vehicle has been
received.
When the engine starts, the
parking lamps will turn on and
remain on as long as the

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
42 Keys, Doors, and Windows
The system has one or more
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start the
vehicle.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the vehicle does not start and the
security light stays on, there is a
problem with the system. Turn the
vehicle off and try again.
If the RKE transmitter appears to be
undamaged, try another transmitter,
or place the transmitter in the
transmitter pocket. See“Starting the
Vehicle with a Low Transmitter
Battery” underRemote Keyless
Entry (RKE) System Operation 027. If the vehicle does not start with the
other transmitter or when the
transmitter is in the transmitter
pocket, the vehicle needs service.
See your dealer who can service
the theft-deterrent system and have
a new transmitter programmed to
the vehicle.
Do not leave the transmitter or
device that disarms or deactivates
the theft-deterrent system in the
vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
46 Keys, Doors, and Windows
Express Window Operation
Windows with an express-up or
down feature allow the front
windows to be lowered or raised
without holding the switch. Rear
windows only have express-down.
Pull a window switch up or press it
down all the way, release it, and the
window goes down or up
automatically. Stop the window by
pressing or pulling the switch.
Express Window Obstacle
Detection
The express-up feature will reverse
window movement if it comes in
contact with an object. Extreme coldor ice could cause the window to
auto-reverse. The window will
operate as normal after the object or
condition is removed.
Obstacle Detection Override
{Warning
If obstacle detection override is
activated, the window will not
reverse automatically. You or
others could be injured and the
window could be damaged.
Before you use obstacle detection
override, make sure that all
people and obstructions are clear
of the window path.
The window can be closed by
holding the window switch in the up
position if conditions prevent it from
express closing.
Programming the Power
Windows
Programming may be necessary if
the vehicle's battery has been
disconnected or discharged. If the
window is unable to express-up,
program the window: 1. Close all doors.
2. Place the ignition in ACC/ ACCESSORY or ON/RUN.
3. Partially open the window to be programmed, then close it and
continue to pull the switch
briefly after the window has
fully closed.
4. Press the power window switch until the window is fully open
and briefly hold.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
100 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 101
Steering Wheel Controls . . . . . . 102
Heated Steering Wheel . . . . . . . 102
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Windshield Wiper/Washer . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . 103
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 103
Power Outlets . . . . . . . . . . . . . . . . 104
Wireless Charging . . . . . . . . . . . . 106
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 107
Instrument Cluster . . . . . . . . . . . . 108
Speedometer . . . . . . . . . . . . . . . . . 110
Odometer . . . . . . . . . . . . . . . . . . . . . 110
Tachometer . . . . . . . . . . . . . . . . . . . 110
Fuel Gauge . . . . . . . . . . . . . . . . . . . 110
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . 111
Safety Belt Reminders . . . . . . . . 112
Airbag Readiness Light . . . . . . . 113
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 113 Charging System Light . . . . . . . 114
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 114
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 116
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 116
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 117
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Vehicle Ahead Indicator . . . . . . . 118
Traction Off Light . . . . . . . . . . . . . 118
StabiliTrak
®OFF Light . . . . . . . . 118
Traction Control System (TCS)/ StabiliTrak
®Light . . . . . . . . . . . . 119
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 119
Tire Pressure Light . . . . . . . . . . . 119
Engine Oil Pressure Light . . . . 120
Low Fuel Warning Light . . . . . . 120
Security Light . . . . . . . . . . . . . . . . . 121
High-Beam On Light . . . . . . . . . . 121
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . 121
Front Fog Lamp Light . . . . . . . . . 121
Lamps On Reminder . . . . . . . . . 121
Cruise Control Light . . . . . . . . . . 122
Door Ajar Light . . . . . . . . . . . . . . . 122
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 122
Head-Up Display (HUD) . . . . . . 125
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 128
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . 129
Brake System Messages . . . . . 129
Compass Messages . . . . . . . . . . 129
Cruise Control Messages . . . . . 130
Door Ajar Messages . . . . . . . . . . 130
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . . 131
Engine Oil Messages . . . . . . . . . 131
Engine Power Messages . . . . . 132
Fuel System Messages . . . . . . . 132
Key and Lock Messages . . . . . 132
Lamp Messages . . . . . . . . . . . . . . 133
Object Detection System Messages . . . . . . . . . . . . . . . . . . . 133
Ride Control System Messages . . . . . . . . . . . . . . . . . . . 134
Airbag System Messages . . . . 135
Security Messages . . . . . . . . . . . 135
Service Vehicle Messages . . . . 135
Steering System Messages . . . . . . . . . . . . . . . . . . . 136
Starting the Vehicle Messages . . . . . . . . . . . . . . . . . . . 136

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
114 Instruments and Controls
problem with the lights or the
passenger sensing system. See
your dealer for service.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light 0113 for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working. The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
ON/RUN with the engine not
running for Key Access or in Service
Only Mode for Keyless Access. See
Ignition Positions
0173.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.