service indicator BUICK LUCERNE 2010 Owner's Guide

3. Fill the cooling system with the proper DEX-COOLcoolant mixture, up to the base of the filler neck.
See Engine Coolant (4.6L Engine)
on page 6‑27orEngine Coolant (3.9L Engine) on page 6‑31.
4. Then fill the coolant recovery tank to the COLD FILL line.
5. Install the coolant recovery tank cap and the pressure cap. After a day or two of driving, when
the engine is cold, check the coolant level in the
recovery tank. If it is low, refill it to the COLD
FILL line.
If the coolant in the recovery tank is constantly low, you
should have a dealer service department inspect the
vehicle for leaks.
Notice: If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
You will find a warning light about a hot engine as
well as an engine coolant temperature gauge on the
instrument panel cluster.
You may decide not to lift the hood when this warning
appears, but instead get service help right away.
See Roadside Assistance Program on page 8‑8.
If you do decide to lift the hood , make sure the vehicle
is parked on a level surface.
Then check to see if the engine cooling fans are
running. If the engine is overheating, both fans should
be running. If they are not, do not continue to run the
engine and have the vehicle serviced.
Notice: Engine damage from running the engine
without coolant is not covered by the warranty.
Notice: If the engine catches fire while driving with
no coolant, the vehicle can be badly damaged. The
costly repairs would not be covered by the vehicle
warranty. See Overheated Engine Protection
Operating Mode
on page 6‑37for information on
driving to a safe place in an emergency.
6-35

{WARNING:
With the wrong kind of fluid in the brake hydraulic
system, the brakes might not work well. This could
cause a crash. Always use the proper brake fluid.
Notice:
.Using the wrong fluid can badly damage
brake hydraulic system parts. For example,
just a few drops of mineral-based oil, such
as engine oil, in the brake hydraulic system
can damage brake hydraulic system parts so
badly that they will have to be replaced. Do
not let someone put in the wrong kind of
fluid.
.If brake fluid is spilled on the vehicle's
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on the vehicle. If you do, wash it off
immediately. See Washing Your Vehicle
on
page 6‑104
.
Brake Wear
This vehicle has disc brakes. Disc brake pads have
built-in wear indicators that make a high-pitched
warning sound when the brake pads are worn and new
pads are needed. The sound can come and go or be
heard all the time the vehicle is moving, except when
applying the brake pedal firmly.
{WARNING:
The brake wear warning sound means that soon
the brakes will not work well. That could lead to
an accident. When the brake wear warning sound
is heard, have the vehicle serviced.
Notice: Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates can cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
the brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to torque specifications in
Capacities and Specifications on page 6‑118.
6-41

LocksDelayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Programmable Automatic Door Locks . . . . . . . . . . . . 3-10
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Lower Anchors and Tethers for Children . . . . . . . . . . . 2-43
Lumbar Power Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
M
Magnetic Ride Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
Maintenance Schedule
Maintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . 7-11
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . 7-8
Recommended Fluids and Lubricants . . . . . . . . . . . . . 7-9
Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Malfunction Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Memory Seat and Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Message DIC Warnings and Messages . . . . . . . . . . . . . . . . . . . . . 4-55 Mirrors
Automatic Dimming Rearview . . . . . . . . . . . . . . . . . . . . . 3-33
Outside Automatic Dimming Mirror . . . . . . . . . . . . . . . . 3-35
Outside Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Outside Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Outside Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Park Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-87
N
Navigation System, Privacy . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Navigation/Radio System, see Navigation Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
O
Object Detection, Side Blind Zone Alert (SBZA) . . . 3-39
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
i - 9

OilEngine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Engine Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44
Older Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Online Owner Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5
OnStar, Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
OnStar
®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Operation, Universal Home Remote System . . . . . . . 3-44
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Outlets Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Outside Automatic Dimming Mirror . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Convex Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Overheated Engine Protection Operating Mode . . . . 6-37
Owner Checks and Services . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Owners, Canadian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
P
Paint, Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-108
Park Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
Park Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Park Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Parking Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Over Things That Burn . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
PASS-Key
®III+ Electronic Immobilizer . . . . . . . . . . . . . 3-17
PASS-Key®III+ Electronic Immobilizer
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 4-34
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . 4-28
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . . 2-67
Passing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Perchlorate Materials Requirements, California . . . . . .6-4
Perimeter Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
i - 10

Seats (cont.)Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Memory, Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Power Lumbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Power Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Securing a Child Restraint Center Front Seat Position . . . . . . . . . . . . . . . . . . . . . . . 2-52
Rear Seat Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Right Front Seat Position . . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3 Accessories and Modifications . . . . . . . . . . . . . . . . . . . . . 6-3
Adding Equipment to the Outside of the Vehicle . . . 6-5
Doing Your Own Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Engine Soon Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Parts Identification Label . . . . . . . . . . . . . . . . . . . . . . . .6-109
Publications Ordering Information . . . . . . . . . . . . . . . . . 8-17
Scheduling Appointments . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Servicing Your Airbag-Equipped Vehicle . . . . . . . . . . . 2-72
Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75
Sheet Metal Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-107
Shifting Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Side Blind Zone Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . . . . .4-5
Spare Tire
Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-100
Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Removing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 6-118
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
StabiliTrak
®Indicator Light . . . . . . . . . . . . . . . . . . . . . . . . 4-39
StabiliTrak®System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Steering Wheel Controls, Audio . . . . . . . . . . . . . . . . . . 4-105
Steering Wheel, Power Tilt Wheel and Telescopic Steering Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Steering Wheel, Tilt Wheel . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Storage Areas Center Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Center Flex Storage Unit . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Convenience Net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
i - 13