2016 BUICK LACROSSE low oil pressure

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
244 Vehicle Care
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants0323.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or into sewers, streams,
or bodies of water. Have the coolant
changed by an authorized service
center, familiar with legal
requirements regarding used
coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down.
If coolant is visible but the coolant
level is not at or above the mark
pointed to, add a 50/50 mixture of
clean, drinkable water and
DEX-COOL coolant.
Be sure the cooling system is cool
before this is done.
If no coolant is visible in the coolant
surge tank, add coolant as follows:
How to Add Coolant to the
Coolant Surge Tank
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol (Continued)
Warning (Continued)
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
260 Vehicle Care
FusesUsage
9 Ignition coils–odd (6–cylinder engine)
10 Engine control module–switched
battery
11 6–cylinder Engine: post catalytic
converter/O2 sensor/
Heater/Mass air flow
sensor/FlexFuel
sensor/Secondary
air induction
solenoid
12 Starter
13 Crank for transmission control
module/Fuel pump
power/Chassis
control module
(eAssist)
14 Cabin heater coolant pump (eAssist)/
secondary air
injector/Secondary
air injector with
pressure sensor Fuses
Usage
15 Motor generator unit coolant pump
(eAssist)
16 Run/Crank for eAssist power
inverter module
17 –
18 Sunshade module/ Vehicle air
purification system/
Ventilated seats
20 Heated steering wheel (non eAssist)
21 Rear power windows
22 Sunroof
23 Variable effort steering (if
equipped) or eAssist
power inverter
module
24 Front power windows
25 Rear heated seats Fuses
Usage
26 Antilock brake system pump
27 Electric parking brake
28 Rear window defogger
29 Heated seat/Left power lumbar
30 Heated Seat/Right power pack cooling
fan (eAssist)
31 AWD/Electronic suspension control
32 Body control module 6
33 Memory seat–front
34 Antilock brake system valves
35 Amplifier
36 Adaptive forward lighting (AFL)
motors–battery
37 Right high-beam

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 309
Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove
hand lotions, sunscreen, and insect
repellent from all interior surfaces or
permanent damage may result.
Use cleaners specifically designed
for the surfaces being cleaned to
prevent permanent damage. Apply
all cleaners directly to the cleaning
cloth. Do not spray cleaners on any
switches or controls. Remove
cleaners quickly.
Before using cleaners, read and
follow all safety instructions on the
label. While cleaning the interior,
open the doors and windows to get
proper ventilation.
To prevent damage, do not clean
the interior using the following
cleaners or techniques:
.Never use a razor or any other
sharp object to remove soil from
any interior surface.
. Never use a brush with stiff
bristles. .
Never rub any surface
aggressively or with too much
pressure.
. Do not use laundry detergents or
dishwashing soaps with
degreasers. For liquid cleaners,
use approximately 20 drops per
3.8 L (1 gal) of water.
A concentrated soap solution will
create streaks and attract dirt.
Do not use solutions that contain
strong or caustic soap.
. Do not heavily saturate the
upholstery when cleaning.
. Do not use solvents or cleaners
containing solvents.
Interior Glass
To clean, use a terry cloth fabric
dampened with water. Wipe droplets
left behind with a clean dry cloth.
If necessary, use a commercial
glass cleaner after cleaning with
plain water.
Caution
To prevent scratching, never use
abrasive cleaners on automotive
glass. Abrasive cleaners or
aggressive cleaning may damage
the rear window defogger.
Cleaning the windshield with water
during the first three to six months
of ownership will reduce tendency
to fog.
Speaker Covers
Vacuum around a speaker cover
gently, so that the speaker will not
be damaged. Clean spots with water
and mild soap.
Coated Moldings
Coated moldings should be cleaned.
. When lightly soiled, wipe with a
sponge or soft, lint-free cloth
dampened with water.
. When heavily soiled, use warm
soapy water.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Service and Maintenance 315
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 0238.
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 0277.
. Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0236 andEngine Oil Life
System 0238. .
Check engine coolant level. See
Engine Coolant 0243.
. Check windshield washer fluid
level. See Washer Fluid 0247.
. Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care 0304. Replace worn or
damaged wiper blades. See
Wiper Blade
Replacement 0253.
. Check tire inflation pressures.
See Tire Pressure 0271.
. Inspect tire wear. See Tire
Inspection 0277.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/
Filter 0239. .
Inspect brake system. See
Exterior Care 0304.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0304.
. 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 0304.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
348 OnStar
4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.1. To retrieve Wi-Fi hotspot information, press
=, wait for
the prompt, then say “Wi-Fi
settings.” On some vehicles,
touch Wi-Fi Settings on the
screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or password, press
Qor call
1-888-4ONSTAR to connect
with an Advisor.
OnStar RemoteLink
®Mobile App
(If Equipped)
Download the OnStar RemoteLink
mobile app to select Apple
®iOS,
Android™, BlackBerry®,
or Windows®mobile devices. OnStar Subscribers can access the
following services from a mobile
device:
.
Remotely start/stop the vehicle,
if factory-equipped.
. Lock/unlock doors, if equipped
with automatic locks.
. Activate the horn and lamps.
. Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
. Send directions to the vehicle.
. Locate the vehicle on a map
(U.S. market only).
. Turn the vehicle's Wi-Fi hotspot
on/off, manage settings, and
monitor data consumption,
if equipped.
For OnStar RemoteLink information
and compatibility, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
OnStar AtYourService
OnStar Advisors can provide special
offers from restaurants and retailers
on your route, help locate hotels,
or book a room.
OnStar Hands-Free Calling
Make and receive calls with the
built-in wireless calling service,
which requires available minutes.
Make a Call
1. Press
=. System responds:
“OnStar ready.”
2. Say “Call.”System responds:
“Call. Please say the name or
number to call.”
3. Say the entire number without pausing, including a “1”and the
area code. System responds:
“OK, calling.”

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
360 Index
IndicatorVehicle Ahead . . . . . . . . . . . . . . . . .117
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 79
Information Energy . . . . . . . . . . . . . . . . . . . . . . . 123
Infotainment . . . . . . . . . . . . . . . . . . . . 156
Infotainment System . . . . . . . . . . . . 344
Instrument Cluster . . . . . . . . . . . . . . 106
Interior Rearview Mirrors . . . . . . . . . 44
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . 297, 298
K
Key and Lock Messages . . . . . . . . 133
Keyless EntryRemote (RKE) System . . . . . . . . . 28
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
L
Labeling, Tire Sidewall . . . . . . . . . . 266
Lamps Daytime Running (DRL) . . . . . . 149
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 152
Exterior Controls . . . . . . . . . . . . . . 148
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 149 Lamps (cont'd)
Headlamps, Front Turn
Signal, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 255
License Plate . . . . . . . . . . . . . . . . . 256
Malfunction Indicator . . . . . . . . . .114
Messages . . . . . . . . . . . . . . . . . . . . 134
On Reminder . . . . . . . . . . . . . . . . . 121
Reading . . . . . . . . . . . . . . . . . . . . . . 153
Sun Visor . . . . . . . . . . . . . . . . . . . . . 153
Lane Change Alert (LCA) . . . . . . . 211
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 213
Lane Departure Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Lap-Shoulder Belt . . . . . . . . . . . . . . . 61
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 91
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 84
LED Lighting . . . . . . . . . . . . . . . . . . . . 254
Light Adaptive Forward Lighting(AFL) Light . . . . . . . . . . . . . . . . . . 120
Lighting Adaptive Forward . . . . . . . . . . . . . 150
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 153 Lighting (cont'd)
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Illumination Control . . . . . . . . . . . 152
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Airbag Readiness . . . . . . . . . . . . . .112
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . .117
Brake System Warning . . . . . . . .115
Charging System . . . . . . . . . . . . . .113
Cruise Control . . . . . . . . . . . . . . . . 121
Door Ajar . . . . . . . . . . . . . . . . . . . . . 121
Electric Parking Brake . . . . . . . . .116
Engine Coolant
Temperature Warning . . . . . . . .118
Engine Oil Pressure . . . . . . . . . . .119
Flash-to-Pass . . . . . . . . . . . . . . . . . 149
Front Fog Lamp . . . . . . . . . . . . . . 121
High-Beam On . . . . . . . . . . . . . . . . 120
High/Low Beam Changer . . . . . 149
Lane Departure Warning . . . . . . .117
Low Fuel Warning . . . . . . . . . . . . 120
Safety Belt Reminders . . . . . . . . . 111
Security . . . . . . . . . . . . . . . . . . . . . . 120
Service Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . . . .116
StabiliTrak
®OFF . . . . . . . . . . . . . .118
Tire Pressure . . . . . . . . . . . . . . . . . .119

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Index 361
Lights (cont'd)Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . .118
Traction Off . . . . . . . . . . . . . . . . . . . .117
Limited-Slip Differential . . . . . . . . . 194
Locks Automatic Door . . . . . . . . . . . . . . . . . 37
Delayed Locking . . . . . . . . . . . . . . . . 36
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Lockout Protection . . . . . . . . . . . . . . 37
Power Door . . . . . . . . . . . . . . . . . . . . . 36
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Loss of Control . . . . . . . . . . . . . . . . . 167
Low Fuel Warning Light . . . . . . . . . 120
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 84
Lumbar Adjustment . . . . . . . . . . . . . . 53
Front Seats . . . . . . . . . . . . . . . . . . . . . 53
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 325
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 320
Maintenance Schedule . . . . . . . . . 314 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 323
Malfunction Indicator Lamp . . . . . 114 Manual Mode . . . . . . . . . . . . . . . . . . . 188
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 55
Messages
Airbag System . . . . . . . . . . . . . . . . 137
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 130
Brake System . . . . . . . . . . . . . . . . 130
Compass . . . . . . . . . . . . . . . . . . . . . 131
Door Ajar . . . . . . . . . . . . . . . . . . . . . 132
Engine Cooling System . . . . . . . 132
Engine Oil . . . . . . . . . . . . . . . . . . . . 133
Engine Power . . . . . . . . . . . . . . . . 133
Fuel System . . . . . . . . . . . . . . . . . . 133
Key and Lock . . . . . . . . . . . . . . . . . 133
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 134
Object Detection System . . . . . 134
Ride Control System . . . . . . . . . . 136
Security . . . . . . . . . . . . . . . . . . . . . . 137
Service Vehicle . . . . . . . . . . . . . . . 137
Starting the Vehicle . . . . . . . . . . . 137
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Transmission . . . . . . . . . . . . . . . . . 138
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 130
Vehicle Speed . . . . . . . . . . . . . . . . 138
Window . . . . . . . . . . . . . . . . . . . . . . . 138 Mirrors
Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . . . 45
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 43
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 44
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 44
Manual Rearview . . . . . . . . . . . . . . . 44
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Tilt in Reverse . . . . . . . . . . . . . . . . . . 44
Mirrors, Interior Rearview . . . . . . . . 44
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 273
N
NavigationOnStar®. . . . . . . . . . . . . . . . . . . . . . 346
Net, Convenience . . . . . . . . . . . . . . . 99
New Vehicle Break-In . . . . . . . . . . . 174
O
Object Detection System Messages . . . . . . . . . . . . . . . . . . . . . 134
Odometer . . . . . . . . . . . . . . . . . . . . . . . 109
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 167
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 236
Engine Oil Life System . . . . . . . 238
Messages . . . . . . . . . . . . . . . . . . . . 133

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
362 Index
Oil (cont'd)Pressure Light . . . . . . . . . . . . . . . . .119
Older Children, Restraints . . . . . . . 77
Online Owner Center . . . . . . . . . . . 333
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 343
OnStar
®Additional
Information . . . . . . . . . . . . . . . . . . . . 349
OnStar
®Connections . . . . . . . . . . . 347
OnStar®Diagnostics . . . . . . . . . . . . 349
OnStar®Emergency . . . . . . . . . . . . 346
OnStar®Navigation . . . . . . . . . . . . . 346
OnStar®Overview . . . . . . . . . . . . . . 345
OnStar®Security . . . . . . . . . . . . . . . 346
Operating Mode
Overheated EngineProtection . . . . . . . . . . . . . . . . . . . 246
Ordering Service Publications . . . . . . . . . . 340
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 103
Overheated Engine Protection Operating Mode . . . . 246
Overheating, Engine . . . . . . . . . . . . 245
P
Park
Shifting Into . . . . . . . . . . . . . . . . . . . 183
Shifting Out of . . . . . . . . . . . . . . . . 184 Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 190
Brake and P (Park)
Mechanism Check . . . . . . . . . . 252
Over Things That Burn . . . . . . . 185
Parking or Backing Assistance Systems . . . . . . . . . . 205
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 112
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Passenger Sensing System . . . . . 71
Perchlorate Materials Requirements, California . . . . . . 228
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 139
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 36
Flows . . . . . . . . . . . . . . . . . . . . . . . . . 122
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Outlets . . . . . . . . . . . . . . . . . . . . . . . 103
Protection, Battery . . . . . . . . . . . . 155
Retained Accessory (RAP) . . . 183
Seat Adjustment . . . . . . . . . . . . . . . . 53
Steering Fluid . . . . . . . . . . . . . . . . . 247
Windows . . . . . . . . . . . . . . . . . . . . . . . 45
Pregnancy, Using Safety Belts . . . 64 Privacy
Vehicle Data Recording . . . . . . . 342
Program Courtesy Transportation . . . . . . 336
Proposition 65 Warning,
California . . . . . . . . . 227, 250, 297, 298
R
Radio Frequency Statement . . . . 341
Reading Lamps . . . . . . . . . . . . . . . . . 153
Rear Seat Armrest . . . . . . . . . . . . . . . 59
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 58
Rear Window Sunshade . . . . . . . . . 47
Rearview Mirrors . . . . . . . . . . . . . . . . 44
Automatic Dimming . . . . . . . . . . . . . 45
Reclining Seatbacks . . . . . . . . . . . . . 54
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 323
Records Maintenance . . . . . . . . . . . . . . . . . . 325
Recreational Vehicle Towing . . . . 301
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 334
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Vehicle Start . . . . . . . . . . . . 34
Replacement Bulbs . . . . . . . . . . . . . 257