Power steering BUICK LACROSSE 2016 Owner's Guide

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Vehicle Care 263
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 APO 3
2 Body control module 7
3 Steering wheel controls backlight
4 Radio/Human machine interface/
Rear auxiliary audio
jack/Front auxiliary
audio video jack/
Touchpad/Remote
media player/Bluray
remote media player
5 OnStar/Universal hands–free phone
6 Power outlet 1
7 Power outlet 2
8 Body control module 1
9 Body control module 4 Fuses Usage
10 Body control module 8
11 Front HVAC/Blower
12 Passenger seat
13 Driver seat
14 Diagnostic link connector
15 Airbag/Automatic occupant sensing
16 Trunk
17 HVAC Controller
18 Pre-fuse for fuses 4 and 5
19 Center stack displays/Head-up
display/Right
steering wheel
control switch/Rear
seat infotainment
display (eAssist)/
HVAC/Center stack
displays Fuses Usage
20 Rear seat entertainment
display/Rear seat
audio
21 Instrument cluster
22 Discrete logic ignition switch
23 Body control module 3
24 Body control module 2
25 Rear HVAC/Blower
26 AC DC inverter
Relays Usage R1 Trunk relay
R2 –
R3 Power outlet relay

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
276 Vehicle Care
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or
more of the TPMS sensors. The
TPMS sensor matching process
should also be performed after
replacing a spare tire with a road
tire containing the TPMS sensor.
The malfunction light and the DIC
message should go off at the next
ignition cycle. The sensors are
matched to the tire/wheel positions,
using a TPMS relearn tool, in the
following order: driver side front tire,
passenger side front tire, passenger
side rear tire, and driver side rear.
See your dealer for service or to
purchase a relearn tool. A TPMS
relearn tool can also be purchased.
See Tire Pressure Monitor
Sensor Activation Tool at
www.gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).There are two minutes to match the
first tire/wheel position, and
five minutes overall to match all four
tire/wheel positions. If it takes
longer, the matching process stops
and must be restarted.
The TPMS sensor matching
process is:
1. Set the parking brake.
2. Turn the ignition to ON/RUN with the engine off or place the
vehicle power mode in ON/
RUN/START. See Ignition
Positions (Keyless Access)
0 175 orIgnition Positions (Key
Access) 0176.
3. Make sure the Tire Pressure info page option is turned on.
The info pages on the DIC can
be turned on and off through
the Settings menu. See Driver
Information Center (DIC) 0123.
4. Use the DIC controls on the right side of the steering wheel
to scroll to the Tire Pressure
screen under the DIC
info page. 5. Press and hold the
V(Set/
Reset) button located in the
center of the DIC controls.
The horn sounds twice to
signal the receiver is in relearn
mode and the TIRE
LEARNING ACTIVE message
displays on the DIC screen.
6. Start with the driver side front tire.
7. Place the relearn tool against the tire sidewall, near the valve
stem. Then press the button to
activate the TPMS sensor.
A horn chirp confirms that the
sensor identification code has
been matched to this tire and
wheel position.
8. Proceed to the passenger side front tire, and repeat the
procedure in Step 7.
9. Proceed to the passenger side rear tire, and repeat the
procedure in Step 7.
10. Proceed to the driver side rear tire, and repeat the procedure
in Step 7. The horn sounds two
times to indicate the sensor

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
308 Vehicle Care
Brake System
Visually inspect brake lines and
hoses for proper hook-up, binding,
leaks, cracks, chafing, etc. Inspect
disc brake pads for wear and rotors
for surface condition. Inspect drum
brake linings/shoes for wear or
cracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
hook-up, binding, leaks, cracks,
chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, and the
steel fuel door hinges, unless the
components are plastic. Applying
silicone grease on weatherstripswith a clean cloth will make them
last longer, seal better, and not stick
or squeak.
Underbody Maintenance
At least twice a year, spring and fall,
use plain water to flush any
corrosive materials from the
underbody. Take care to thoroughly
clean any areas where mud and
other debris can collect.
Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water
can overcome the seals and
contaminate the fluid. Contaminated
fluid will decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface. See
“Finish Care”
previously in this section.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils.
Newspapers or dark garments can
transfer color to the vehicle’s
interior.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Service and Maintenance 323
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine
Oil 0236.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant 0243.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Hydraulic Power Steering System (If Equipped) DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission DEXRON
®-VI Automatic Transmission Fluid.
Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol (GM Part No. 89021668, in
Canada 89021674) or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).

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

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
364 Index
ServicesSpecial Application . . . . . . . . . . . 320
Servicing the Airbag . . . . . . . . . . . . . 75
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 252
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . 183
Out of Park . . . . . . . . . . . . . . . . . . . 184
Side Blind Zone Alert (SBZA) . . . 211
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 151
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . 296
Special Application Services . . . . 320
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 327
Speedometer . . . . . . . . . . . . . . . . . . . 109
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . .118
Start Assist, Hills . . . . . . . . . . . . . . . 192
Start Vehicle, Remote . . . . . . . . . . . 34
Starter Switch Check . . . . . . . . . . . 251
Starting the Engine . . . . . . . . . . . . . 178
Starting the Vehicle
Messages . . . . . . . . . . . . . . . . . . . . . 137
Steering . . . . . . . . . . . . . . . . . . . . . . . . 166 Fluid, Power . . . . . . . . . . . . . . . . . . 247 Steering (cont'd)
Heated Wheel . . . . . . . . . . . . . . . . 101
Wheel Adjustment . . . . . . . . . . . . 101
Wheel Controls . . . . . . . . . . . . . . . 101
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 256
Storage Areas Center Console . . . . . . . . . . . . . . . . . 99
Convenience Net . . . . . . . . . . . . . . . 99
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Glove Box . . . . . . . . . . . . . . . . . . . . . . 97
Sunglasses . . . . . . . . . . . . . . . . . . . . . 98
Storage Compartments . . . . . . . . . . 97
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 291
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 170
Summer Tires . . . . . . . . . . . . . . . . . . 265
Sun Visor Lamps . . . . . . . . . . . . . . . 153
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 47
Sunglass Storage . . . . . . . . . . . . . . . . 98
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Sunshade Rear Window . . . . . . . . . . . . . . . . . . . 47
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 208
Infotainment . . . . . . . . . . . . . 156, 344 Systems
Driver Assistance . . . . . . . . . . . . . 204
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 109
TaillampsBulb Replacement . . . . . . . . . . . . 256
Text Telephone (TTY) Users . . . . 333
Theft-Deterrent Systems . . . . . 41, 42 Immobilizer . . . . . . . . . . . . . . . . . . . . . 41
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 All-Season . . . . . . . . . . . . . . . . . . . . 265
Buying New Tires . . . . . . . . . . . . . 279
Chains . . . . . . . . . . . . . . . . . . . . . . . . 283
Changing . . . . . . . . . . . . . . . . . . . . . 291
Compact Spare . . . . . . . . . . . . . . . 296
Designations . . . . . . . . . . . . . . . . . 268
Different Size . . . . . . . . . . . . . . . . . 280
If a Tire Goes Flat . . . . . . . . . . . . 284
Inspection . . . . . . . . . . . . . . . . . . . . 277
Messages . . . . . . . . . . . . . . . . . . . . 137
Pressure . . . . . . . . . . . . . . . . . . . . . . 272
Pressure Light . . . . . . . . . . . . . . . . .119
Pressure Monitor Operation . . 274
Pressure Monitor System . . . . . 273
Rotation . . . . . . . . . . . . . . . . . . . . . . 277
Sealant andCompressor Kit . . . . . . . . . . . . . 285