2010 BUICK LACROSSE power steering

9-22 Vehicle Care
Power Steering Fluid
SeeEngine Compartment Overviewon page 9‑6for information on the
location of the power steering fluid
reservoir.
When to Check Power Steering
Fluid
It is not necessary to regularly
check power steering fluid unless a
leak is suspected in the system or
an unusual noise is heard. A fluid
loss in this system could indicate a
problem. Have the system inspected
and repaired.
How to Check Power Steering
Fluid
Check the level after the vehicle has
been driven for at least
twenty minutes so the fluid is warm.
To check the power steering fluid:
1. Turn the ignition key to LOCK/ OFF and let the engine
compartment cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and pull it straight up.
4. Wipe the dipstick with a clean rag.
5. Replace the cap and completely tighten it.
6. Remove the cap again and look at the fluid level on the dipstick.
When the engine is hot, the level
should be at the hot MAX level.
When the engine is cold, the fluid
level should be between MIN and
MAX on the dipstick.
What to Use
To determine what kind of fluid to
use, see Recommended Fluids and
Lubricants
on page 10‑7. Always
use the proper fluid.

9-40 Vehicle Care
J-CaseFuses Usage
28 Rear Window
Defogger
41 Brake
Vacuum Pump
42 Cooling Fan K2
45 Cooling Fan K1
Mini Fuses Usage 1 Transmission
Control Module
2 Engine Control
Module Battery
5 Engine Control
Module Ignition
8 Ignition Coils ‐Even
9 Ignition Coils ‐Odd
10 Engine Control
Module Mini Fuses Usage
11 Post Catalytic
Converter Oxygen
Sensor Heater
13 Trans Ignition / Fuel
System Control
Module
16 MAF
17 Airbag Module
18 SBZ Ignition
23 Variable Effort
Steering
29 Power Lumbar, Left
32 Body Control
Module
33 Heated Seat
34 Antilock Brake
System Valves
35 Amplifier
36 AFL Ignition
37 Right High Beam Mini Fuses Usage
38 Left High Beam
46 Cooling Fan Relay
47 Pre Catalytic
Converter Oxygen
Sensor Heater
48 Fog Lamps
49 Right High Intensity
Discharge
Headlamp
50 Left High Intensity
Discharge
Headlamp
51 Horn
52 Cluster Ignition
53 Inside Rearview
Mirror, Rear Vision
Camera,
Vacuum Pump
54 Heating, Ventilation
and Air Conditioning

9-42 Vehicle Care
Pull the door toward you to release
it from the hinge.
Instrument Panel Fuse BlockFuses Usage
1 Steering Wheel
Controls Backlight
2 Body Control
Module 7
3 Body Control
Module 5
4 Radio
5 OnStar
®Universal
Hands Free Phone
6 Power Outlet 1
7 Power Outlet 2
8 Body Control
Module 1
9 Body Control
Module 4
10 Body Control
Module 8
11 Front Heater
Ventilation Air
Conditioning/Blower
12 Passenger Seat

9-50 Vehicle Care
(F) Service Description:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carry capacity a tire is
certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in psi (pounds per
square inch) or kPa (kilopascal).
Accessory Weight
:This
means the combined weight of
optional accessories. Some
examples of optional
accessories are, automatic
transmission, power steering, power brakes, power windows,
power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in psi (pounds per
square inch) or kPa (kilopascal) before a tire has built up heat
from driving. See
Tire Pressure
on page 9‑53.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) motor vehicle safety
standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 8‑12.

Service and Maintenance 10-7
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Engine oil which meets GM Standard GM6094M and displays the
American Petroleum Institute Certified for Gasoline Engines starburst
symbol. To determine the proper viscosity for the vehicle's engine,
see
Engine Oil on page 9‑11.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL
®Coolant.
See Engine Coolant on page 9‑18.
Hydraulic Brake System Hydraulic Brake Fluid (GM Part No. U.S. 88862806, in Canada 88862807). Windshield Washer Optikleen
®Washer Solvent.
Hydraulic Power Steering System GM Power Steering Fluid (GM Part No. U.S. 89021184,
in Canada 89021186).

11-4 Technical Data
Engine Specifications
EngineVIN CodeTransmission Spark Plug Gap
2.4L L4 Engine CAutomatic 0.9 mm (0.035 in)
3.0L V6 Engine GAutomatic 1.10 mm (0.043 in)
3.6L V6 Engine VAutomatic 1.10 mm (0.043 in)
Engine Drive Belt Routing
2.4L L4 Engine
(Electric Power Steering)
2.4L L4 Engine
(Hydraulic Power Steering)3.0L, 3.6L V6 Engines

i-4 INDEX
Dual Automatic ClimateControl System . . . . . . . . . . . . . . . . 7-4
DVD Rear Seat EntertainmentSystem . . . . . . . . . . . . . . . . . . . . . . 6-34
DVD/CD Player . . . . . . . . . . . . . . . . 6-22
E
Electric Parking Brake Light . . . 4-20
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . 8-60
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 9-39
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 9-38
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 9-41
Overload . . . . . . . . . . . . . . . . . . . . . 9-38
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 9-43
Electronic Stability Control . . . . . 8-35
Electronic Stability Control Indicator Light . . . . . . . . . . . . . . . . 4-22 Engine
Air Cleaner/Filter . . . . . . . . . . . . . 9-15
Check and Service Engine
Soon Lamp . . . . . . . . . . . . . . . . . . 4-17
Compartment Overview . . . . . . . . 9-6
Coolant . . . . . . . . . . . . . . . . . . . . . . . 9-18
Coolant Temperature Gage . . . 4-15
Cooling System . . . . . . . . . . . . . . . 9-17
Cooling System Messages . . . 4-34
Drive Belt Routing . . . . . . . . . . . . 11-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 8-26
Overheated Protection Operating Mode . . . . . . . . . . . . . 9-21
Overheating . . . . . . . . . . . . . . . . . . 9-20
Power Messages . . . . . . . . . . . . . 4-35
Pressure Light . . . . . . . . . . . . . . . . 4-23
Running While Parked . . . . . . . . 8-26
Starting . . . . . . . . . . . . . . . . . . . . . . . 8-20
Engine Oil Life System . . . . . . . . . . . . . . . . . . . 9-13
Messages . . . . . . . . . . . . . . . . . . . . 4-35
Entry Lighting . . . . . . . . . . . . . . . . . . . 5-6
Equipment, Towing . . . . . . . . . . . . 8-59
Event Data Recorders . . . . . . . . 12-15
Exit Lighting . . . . . . . . . . . . . . . . . . . . 5-6 Extender, Safety Belt . . . . . . . . . . 2-23
Exterior Lamp Controls . . . . . . . . . 5-1
Exterior Lamps Off Reminder . . . 5-2
F
Filter
Engine Air Cleaner . . . . . . . . . . . 9-15
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 5-2
Flashers, Hazard Warning . . . . . . 5-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . 9-67
Flat Tire, Changing . . . . . . . . . . . . 9-69
Fluid Automatic Transmission . . . . . . 9-15
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 9-25
Power Steering . . . . . . . . . . . . . . . 9-22
Washer . . . . . . . . . . . . . . . . . . . . . . . 9-23
Fog Lamps Bulb Replacement . . . . . . . 5-5, 9-35
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Folding Mirrors . . . . . . . . . . . . . . . . 1-15
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 2-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Heated and Ventilated . . . . . . . . . 2-8
Front Storage . . . . . . . . . . . . . . . . . . . 3-1

i-8 INDEX
O
Object Detection, Side BlindZone Alert (SBZA) . . . . . . . . . . . 8-43
Odometer . . . . . . . . . . . . . . . . . . . . . . 4-14
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . 8-6
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Engine Oil Life System . . . . . . . 9-13
Messages . . . . . . . . . . . . . . . . . . . . 4-35
Pressure Light . . . . . . . . . . . . . . . . 4-23
Older Children, Restraints . . . . . 2-40
Online Owner Center . . . . . . . . . . 12-4
OnStar
®System . . . . . . . . . . . . . . . 4-43
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Overheated Engine Protection Operating Mode . . . 9-21
Overheating, Engine . . . . . . . . . . . 9-20
Overview, Infotainment System . . . . . . . . . . . . . . . . . . . . 6-3, 6-5
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . 8-23
Shifting Out of . . . . . . . . . . . . . . . . 8-25
Park Tilt Mirrors . . . . . . . . . . . . . . . . 1-16
Parking Assist, Ultrasonic . . . . . . . . . . . . . 8-40
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Brake and P (Park)
Mechanism Check . . . . . . . . . . 9-28
Over Things That Burn . . . . . . . 8-25
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 4-16
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Passenger Sensing System . . . 2-32
Perchlorate Materials
Requirements, California . . . . . . 9-3
Phone Bluetooth . . . 6-42, 6-43, 6-46, 6-57
Power Door Locks . . . . . . . . . . . . . . . . . . . 1-10
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Protection, Battery . . . . . . . . . . . . . 5-7
Retained Accessory (RAP) . . . 8-20 Power (cont.)
Seat Adjustment . . . . . . . . . . . . . . . 2-4
Steering Fluid . . . . . . . . . . . . . . . . . 9-22
Windows . . . . . . . . . . . . . . . . . . . . . 1-17
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 12-16
Program Courtesy Transportation . . . . . . 12-8
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . . 9-2
R
Radio FrequencyIdentification (RFID) . . . . . . . . 12-16
Statement . . . . . . . . . . . . . . . . . . 12-16
Radios AM-FM Radio . . . . . . . . . . . . . . . . . 6-12
CD/DVD Player . . . . . . . . . . . . . . . 6-22
Reception . . . . . . . . . . . . . . . . . . . . 6-18
Satellite . . . . . . . . . . . . . . . . . . . . . . . 6-14