2016 BUICK LACROSSE overheating

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
246 Vehicle Care
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If not, do not
continue to run the engine and have
the vehicle serviced.
Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.
If Steam Is Coming from the
Engine Compartment
SeeOverheated Engine Protection
Operating Mode 0246 for
information on driving to a safe
place in an emergency.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem might not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle: .
Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer.
If the overheat warning displays with
no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
engine coolant temperature warning
light no longer displays, the vehicle
can be driven. Continue to drive the
vehicle slowly for about 10 minutes.
Keep a safe vehicle distance from
the vehicle in front. If the warning
does not come back on, continue to
drive normally and have the cooling
system checked for proper fill and
function. If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is no sign of steam, idle the
engine for three minutes while
parked. If the warning is still
displayed, turn off the engine until it
cools down. Also, see
Overheated
Engine Protection Operating
Mode 0246.
Overheated Engine
Protection
Operating Mode
This emergency operating mode
allows the vehicle to be driven to a
safe place in an emergency
situation. If an overheated engine
condition exists, an overheat
protection mode which alternates
firing groups of cylinders helps
prevent engine damage. In this
mode, there is significant loss in
power and engine performance.
The engine coolant temperature
warning light comes on the
instrument panel, to indicate the
vehicle has entered overheated

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
264 Vehicle Care
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. SeeVehicle Load
Limits 0171.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)
Warning (Continued)
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.
See Tire Pressure for
High-Speed Operation 0272 for
inflation pressure adjustment for
high-speed driving.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 271
determined by tire
manufacturers using
government testing procedures.
The ratings are molded into the
sidewall of the tire. SeeUniform
Tire Quality Grading 0281.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits 0171.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” underVehicle
Load Limits 0171.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
(Continued)
Caution (Continued)
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity. See
Vehicle Load Limits 0171.
How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle
with more weight than it was
designed to carry.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
358 Index
Driving (cont'd)Winter . . . . . . . . . . . . . . . . . . . . . . . . 169
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 157
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 217
Electric Parking Brake Light . . . . 116
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 225
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 259
Fuses and Circuit Breakers . . . 258
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 262
Overload . . . . . . . . . . . . . . . . . . . . . 257
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 346
Energy Information . . . . . . . . . . . . . 123
Engine Air Cleaner/Filter . . . . . . . . . . . . . 239
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . .114
Compartment Overview . . . . . . . 231
Coolant . . . . . . . . . . . . . . . . . . . . . . . 243
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . 111 Engine (cont'd)
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . .118
Cooling System . . . . . . . . . . . . . . . 242
Cooling System Messages . . . 132
Drive Belt Routing . . . . . . . . . . . . 329
Exhaust . . . . . . . . . . . . . . . . . . . . . . 185
Heater . . . . . . . . . . . . . . . . . . . . . . . . 181
Oil Life System . . . . . . . . . . . . . . . 238
Oil Messages . . . . . . . . . . . . . . . . . 133
Oil Pressure Light . . . . . . . . . . . . .119
Overheated Protection
Operating Mode . . . . . . . . . . . . . 246
Overheating . . . . . . . . . . . . . . . . . . 245
Power Messages . . . . . . . . . . . . . 133
Running While Parked . . . . . . . . 186
Starting . . . . . . . . . . . . . . . . . . . . . . . 178
Entry Lighting . . . . . . . . . . . . . . . . . . . 153
Equipment, Towing . . . . . . . . . . . . . 224
Event Data Recorders . . . . . . . . . . 343
Exit Lighting . . . . . . . . . . . . . . . . . . . . 154
Extender, Safety Belt . . . . . . . . . . . . 64
Exterior Lamp Controls . . . . . . . . . 148
Exterior Lamps Off Reminder . . . 149
F
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . 239
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 149
Flashers, Hazard Warning . . . . . . 151
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 284 Changing . . . . . . . . . . . . . . . . . . . . . 291
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 311
Fluid Automatic Transmission . . . . . . 239
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 249
Power Steering . . . . . . . . . . . . . . . 247
Washer . . . . . . . . . . . . . . . . . . . . . . . 247
Fog Lamps Bulb Replacement . . . . . . . . . . . . 151
Folding Mirrors . . . . . . . . . . . . . . . . . . 44
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 208
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 341
Front Automatic Braking (FAB) System . . . . . . . . . . . . . . . . . 210
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121

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