2007 BUICK LACROSSE power steering

How to Check Power Steering Fluid
To check the power steering uid, do the following:
1. Turn the key off and let the engine
compartment cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and wipe the dipstick with
a clean rag.
4. Replace the cap and completely tighten it.
5. Remove the cap again and look at the
uid level on the dipstick.
If your vehicle has the 3.8L V6 engine, the uid
level should be between the ADD and HOT marks
when the engine is cold, and at the HOT mark
when the engine is hot. If the uid is at the
ADD mark when the engine is cold or hot, power
steering uid should be added.If your vehicle has the 3.6L V6 engine, the uid
level should be between the Min (Minimum)
and Max (Maximum) marks when the engine is
cold, and at the Max mark when the engine is hot.
If the uid is at the Min mark when the engine
is cold or hot, power steering uid should be
added.
What to Use
To determine what kind of uid to use, see
Recommended Fluids and Lubricants on page 470.
Always use the proper uid. Failure to use the
proper uid can cause leaks and damage hoses
and seals.
379

(C) Aspect Ratio:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 60,
as shown in item C of the illustration, it would
mean that the tire’s sidewall is 60 percent as high
as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The
letter R means radial ply construction; the letter D
means diagonal or bias ply construction; and the
letter B means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description:These characters
represent the load range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certied to carry a
load. Speed ratings range from A to Z.Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission/
transaxle, 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.
406

Fuses Usage
DR/LCK
TRUNKDoor Locks, Trunk
RFA/MOD Remote Keyless Entry
PRK/SWTCH Ignition Key Lock
CLSTR Cluster
STR/WHL/
ILLUMSteering Wheel Controls
Illumination
ONSTAR/ALDL OnStar
®, Data Link
Fuses Usage
INT/ILLUM Interior Lamps
PWR/SEAT Power Seat
S/ROOF Sunroof
CNSTR Canister Vent
HVAC Climate Control System
HAZRD Turn Signal, Hazard
PRK/LAMP Park Lamps
CHMSL/BKUPCenter-High-Mounted
Stoplamp/Back-up Lamps
PWR/MIR Power Mirrors
CRUISE Cruise Control
RDO/AMP Radio, Amplier
HTD/SEAT Heated Seats
HTD/MIR Heated Mirrors
PWR/WNDW Power Window
Relays Usage
RAP Retained Accessory Power
PRK/LAMP Park Lamp Relay
R/DEFOG Rear Defogger Relay
451

Maintenance Footnotes
(a)Visually inspect brake lines and hoses for
proper hook-up, binding, leaks, cracks, chang,
etc. Inspect disc brake pads for wear and rotors for
surface condition. Inspect other brake parts,
including calipers, parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing
parts or signs of wear. Inspect power steering lines
and hoses for proper hook-up, binding, leaks,
cracks, chang, etc.
(c)Visually inspect hoses and have them replaced
if they are cracked, swollen, or deteriorated.
Inspect all pipes, ttings and clamps; replace with
genuine GM parts as needed. To help ensure
proper operation, a pressure test of the cooling
system and pressure cap and cleaning the outside
of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or
cracking. Replace wiper blades that appear worn
or damaged or that streak or miss areas of
the windshield.(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders. Lubricate all
hinges and latches, including those for the
body doors, hood, secondary latch, pivots, spring
anchor, release pawl, rear compartment, glove
box door, and console door. More frequent
lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)If you drive regularly under dusty conditions,
the lter may require replacement more often.
465

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name,
part number, or specication may be obtained from
your dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. GM Goodwrench
®
oil meets all the requirements for
your vehicle. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on page 353.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 363.
Hydraulic Brake
SystemDelco
®Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
WasherGM Optikleen
®Washer Solvent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransaxleDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring
Anchor, and
Release PawlLubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293, in
Canada 992723) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 109435474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
470

Audio System(s).......................................... 238
Audio Steering Wheel Controls................. 280
Backglass Antenna................................... 283
Care of Your CD Player........................... 282
Care of Your CDs.................................... 282
Chime Level Adjustment........................... 284
Radio with CD........................240, 245, 252
Radio with Six-Disc CD............................ 260
Setting the Time...................................... 239
Theft-Deterrent Feature............................ 280
Understanding Radio Reception............... 281
XM™ Satellite Radio Antenna System...... 284
Automatic Door Lock..................................... 98
Automatic Transaxle
Fluid........................................................ 360
Operation................................................. 114
B
Backglass Antenna...................................... 283
Battery........................................................ 384
Electric Power Management..................... 163
Exterior Lighting Battery Saver................. 160
Run-Down Protection............................... 164
Before Leaving on a Long Trip.................... 310Brake
Anti-Lock Brake System (ABS)................. 291
Emergencies............................................ 293
Parking.................................................... 117
System Warning Light.............................. 186
Brakes........................................................ 381
Braking....................................................... 290
Braking in Emergencies............................... 293
Break-In, New Vehicle................................. 109
Bulb Replacement....................................... 394
Front Turn Signal and Parking Lamps...... 397
Halogen Bulbs......................................... 394
Headlamp Aiming..................................... 391
License Plate Lamps................................ 400
Replacement Bulbs.................................. 400
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps........... 398
Buying New Tires........................................ 418
498

Engine (cont.)
Overheated Protection Operating Mode.... 370
Overheating............................................. 367
Reduced Power Light............................... 196
Starting.................................................... 111
Enhanced Traction System (ETS)................ 295
Entry Lighting.............................................. 161
Event Data Recorders (EDR)...................... 489
Extender, Safety Belt..................................... 38
Exterior Lamps............................................ 158
Exterior Lighting Battery Saver.................... 160
F
Filter
Engine Air Cleaner................................... 358
Finish Damage............................................ 446
Flashers, Hazard Warning........................... 150
Flash-to-Pass.............................................. 153
Flat Tire...................................................... 425
Flat Tire, Changing...................................... 426
Flat Tire, Storing......................................... 435Fluid
Automatic Transaxle................................. 360
Power Steering........................................ 378
Windshield Washer.................................. 380
Fog Lamps.................................................. 160
Folding Rear Seat......................................... 14
Fuel............................................................ 343
Additives.................................................. 344
California Fuel.......................................... 344
Check Gas Cap Light.............................. 199
Filling a Portable Fuel Container.............. 348
Filling Your Tank...................................... 346
Fuels in Foreign Countries....................... 345
Gage....................................................... 198
Gasoline Octane...................................... 343
Gasoline Specications............................ 344
Low Warning Light................................... 198
Fuses
Fuses and Circuit Breakers...................... 450
Instrument Panel Fuse Block................... 450
Underhood Fuse Block............................. 452
Windshield Wiper..................................... 449
502

P
Paint, Damage............................................ 446
Park Aid...................................................... 164
Park (P)
Shifting Into............................................. 118
Shifting Out of......................................... 120
Parking
Assist....................................................... 164
Brake....................................................... 117
Over Things That Burn............................ 121
Passenger Airbag Status Indicator............... 183
Passenger Compartment Air Filter............... 178
Passenger Sensing System........................... 75
Passing....................................................... 300
PASS-Key
®III ............................................. 106
PASS-Key®III Operation............................. 107
Perimeter Lighting....................................... 163
Power
Accessory Outlet(s).................................. 167
Door Locks................................................ 97
Electrical System..................................... 450
Lumbar Controls........................................ 10
Reduced Engine Light.............................. 196Power (cont.)
Retained Accessory (RAP)....................... 110
Seat............................................................ 9
Steering Fluid.......................................... 378
Windows.................................................. 103
Pretensioners, Safety Belt............................. 38
Programmable Automatic Door Unlock........... 98
Q
Questions and Answers About Safety Belts ... 20
R
Radiator Pressure Cap................................ 367
Radios........................................................ 238
Care of Your CD Player........................... 282
Care of Your CDs.................................... 282
Radio with CD........................240, 245, 252
Radio with Six-Disc CD............................ 260
Setting the Time...................................... 239
Theft-Deterrent......................................... 280
Understanding Reception......................... 281
Rear Assist Handle Reading Lamps............ 163
507