2017 BUICK LACROSSE oil pressure

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Introduction 3
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9: Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g: Audio Steering Wheel Controls
or OnStar®(if equipped)
$: Brake System Warning Light
":Charging System
I: Cruise Control
`:Do Not Puncture
^:Do Not Service
B:Engine Coolant Temperature
O:Exterior Lamps
_: Flame/Fire Prohibited
#:Fog Lamps
.:Fuel Gauge
+: Fuses
3:Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
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
Safety 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
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 23
Tire Pressure Monitor . . . . . . . . . . 23
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
E85 or FlexFuel . . . . . . . . . . . . . . . . 24
Engine Oil Life System . . . . . . . . 24
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . 24
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 25

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
34 Keys, Doors, and Windows
engine is running. The doors
will be locked and the climate
control system may come on.
Start the engine to drive the vehicle.
The engine will shut off after
10 minutes unless a time extension
is done or the engine is started.
The climate control system will use
the previous setting during a remote
start. The rear defog may come on
during remote start based on cold
ambient conditions. The rear defog
indicator light does not come on
during remote start. Vehicles with
heated or heated and ventilated
front seats can have this feature
turn on automatically during a
remote start. See Vehicle
Personalization 0138.
Extending Engine Run Time
The engine run time can also be
extended by another 10 minutes,
if during the first 10 minutes
Steps 1–3 are repeated while the
engine is still running. An extension
can be requested, 30 seconds after
starting. This provides a total of
20 minutes. The remote start can only be
extended once.
When the remote start is extended,
the second 10-minute period is
added on to the first 10 minutes for
a total of 20 minutes.
A maximum of two remote starts,
or a remote start with an extension,
are allowed between ignition cycles.
The vehicle's ignition must be
changed to ON/RUN/START and
then back to OFF before the remote
start procedure can be used again.
Canceling a Remote Start
To cancel a remote start, do any of
the following:
.
Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then off. Conditions in Which Remote Start
Will Not Work
The remote start will not operate if:
.
The transmitter is in the vehicle.
. The hood is not closed.
. The hazard warning flashers
are on.
. There is an emission control
system malfunction.
. The engine coolant temperature
is too high.
. The oil pressure is low.
. Two remote vehicle starts have
already been used.
. The vehicle is not in P (Park).

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
120 Instruments and Controls
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. SeeTire Messages 0136.
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire Pressure
0 261.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See Tire Pressure Monitor
Operation 0264.Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
Add oil if required, but if the oil
level is within the operating range
and the oil pressure is still low,
have the vehicle serviced. Always
follow the maintenance schedule
for changing engine oil.
This light should come on briefly as
the engine is started. If it does not
come on, have the vehicle serviced
by your dealer. If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
124 Instruments and Controls
Fuel Range and Instantaneous
Fuel Economy :Displays the
approximate distance the vehicle
can be driven without refueling.
LOW will be displayed when the
vehicle is low on fuel. The fuel
range estimate is based on an
average of the vehicle's fuel
economy over recent driving history
and the amount of fuel remaining in
the fuel tank.
Displays the current fuel economy in
either liters per 100 kilometers (L/
100 km) or miles per gallon (mpg).
This number reflects only the
approximate fuel economy that the
vehicle has right now and changes
frequently as driving conditions
change.
Oil Life : Displays an estimate of
the oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See Engine Oil Messages 0131.
The oil should be changed as soon as possible. See
Engine Oil0231.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule. See Maintenance
Schedule 0297.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display accidentally at any time
other than when the oil has just
been changed. It cannot be reset
accurately until the next oil change.
To reset the engine oil life system,
press and hold
Vfor several
seconds while the Oil Life display is
active. See Engine Oil Life System
0 233.
Tire Pressure : Displays the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber.
See Tire Pressure Monitor System
0 263 andTire Pressure Monitor
Operation 0264. Timer :
To start the timer, press
V
while this display is active. The
display will show the amount of time
that has passed since the timer was
last reset. To stop the timer, press
V
briefly while this display is active
and the timer is running. To reset
the timer to zero, press and hold
V
while this display is active.
Follow Distance/Gap Setting : The
current follow time to the vehicle
ahead is displayed as a time value
on this page when Adaptive Cruise
Control (ACC) is not engaged.
When ACC has been engaged, the
Following Distance Indicator page
switches to the Gap Setting page.
This page shows the current gap
setting.
See Forward Collision Alert (FCA)
System 0207 andAdaptive Cruise
Control 0194.
Top Consumers : Shows a list of
the features that are currently
impacting the fuel economy, in order
from highest to lowest. If a feature is
turned off, it will be removed from
the list.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
132 Instruments and Controls
OIL PRESSURE LOW—STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's engine power is reduced.
Reduced engine power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced
speed while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, or displays repeatedly, the vehicle should be
taken to your dealer for service as
soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
Key and Lock Messages
NO REMOTE DETECTED
This message displays when the
transmitter battery may be weak.
See
“Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System
Operation 027.
NO REMOTE DETECTED
PRESS BRAKE TO RESTART
This message displays when
attempting to turn off the vehicle
and the RKE transmitter is no longer
detected. Restarting is allowed
without the RKE transmitter for five minutes. Press the brake pedal
and ENGINE START/STOP to
restart the vehicle.
NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE
This message displays when trying
to start the vehicle if an RKE
transmitter is not detected. The
transmitter battery may be weak.
See
“Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System
Operation 027.
REMOTE LEFT IN VEHICLE
This message displays when
leaving the vehicle with the RKE
transmitter still inside.
REPLACE BATTERY IN
REMOTE KEY
This message displays when the
battery in the RKE transmitter needs
to be replaced.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
226 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . 227
California Proposition65 Warning . . . . . . . . . . . . . . . . . 227
California Perchlorate Materials Requirements . . . . . 227
Accessories and Modifications . . . . . . . . . . . . . . . . 228
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 228
Hood . . . . . . . . . . . . . . . . . . . . . . . . . 229
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . 230
Engine Oil . . . . . . . . . . . . . . . . . . . . 231
Engine Oil Life System . . . . . . . 233
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . 234
Engine Air Cleaner/Filter . . . . . . 235
Cooling System . . . . . . . . . . . . . . 236
Engine Coolant . . . . . . . . . . . . . . . 236
Engine Overheating . . . . . . . . . . 239
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . 240
Washer Fluid . . . . . . . . . . . . . . . . . 241
Brakes . . . . . . . . . . . . . . . . . . . . . . . 242
Brake Fluid . . . . . . . . . . . . . . . . . . . 242 Battery - North America . . . . . . 243
All-Wheel Drive . . . . . . . . . . . . . . . 244
Starter Switch Check . . . . . . . . . 244
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . 245
Wiper Blade Replacement . . . . 245
Windshield Replacement . . . . . 246
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . 246
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . 246
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . 246
LED Lighting . . . . . . . . . . . . . . . . . 247
Taillamps, Turn Signal, Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . . . 247
License Plate Lamp . . . . . . . . . . 247
Replacement Bulbs . . . . . . . . . . . 248
Electrical System
Electrical System Overload . . . 248
Fuses and Circuit Breakers . . . 249
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 249
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 252
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 254 All-Season Tires . . . . . . . . . . . . . . 255
Winter Tires . . . . . . . . . . . . . . . . . . 255
Tire Sidewall Labeling . . . . . . . . 256
Tire Designations . . . . . . . . . . . . . 258
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . 259
Tire Pressure . . . . . . . . . . . . . . . . . 261
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 262
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 263
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 264
Tire Inspection . . . . . . . . . . . . . . . . 267
Tire Rotation . . . . . . . . . . . . . . . . . 267
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 268
Buying New Tires . . . . . . . . . . . . . 269
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 270
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 271
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 272
Wheel Replacement . . . . . . . . . . 272
Tire Chains . . . . . . . . . . . . . . . . . . . 273
If a Tire Goes Flat . . . . . . . . . . . . 274
Tire Changing . . . . . . . . . . . . . . . . 275
Compact Spare Tire . . . . . . . . . . 280