Page 239 of 328

Tire Size
The following illustration shows an example of a typical
passenger (p-metric) vehicle tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P as the
rst character in the tire size means a passenger
vehicle tire engineered to standards set by the U. S.
Tire and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(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 certi ed
to carry. The load index can range from 1 to 279. The
speed rating is the maximum speed a tire is certi ed
to carry a load. Speed ratings range from A to Z.
Tire Terminology and De nitions
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, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
5-47
Page 323 of 328

Light (cont.)
Passenger Safety Belt Reminder....................3-23
Reduced Engine Power................................3-34
Safety Belt Reminder...................................3-23
Security.....................................................3-33
Service Vehicle Soon...................................3-34
Lighting
Entry/Exit...................................................3-15
Limited-Slip Rear Axle....................................... 4-9
Loading Your Vehicle.......................................4-29
Locks
Automatic Door Lock..................................... 2-8
Automatic Door Unlock.................................. 2-9
Delayed Locking........................................... 2-8
Manual Door................................................ 2-7
Power Door.................................................. 2-7
Loss of Control...............................................4-14
Low Coolant Warning Light..............................3-29
Low Fuel Warning Light...................................3-35
M
Maintenance Schedule
At Each Fuel Fill.........................................6-13
At Least Once a Month................................6-14
At Least Once a Year..................................6-15
At Least Twice a Year..................................6-14
Brake System Inspection..............................6-20
Engine Cooling System Inspection.................6-20Maintenance Schedule (cont.)
Exhaust System Inspection...........................6-19
Fuel System Inspection................................6-19
How This Section is Organized....................... 6-2
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-23
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-13
Part C - Periodic Maintenance Inspections......6-19
Part D - Recommended Fluids and Lubricants . . . 6-21
Part E - Maintenance Record........................6-24
Scheduled Maintenance................................. 6-4
Steering and Suspension Inspection...............6-19
Throttle System Inspection............................6-20
Using.......................................................... 6-4
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-30
Manual Seats................................................... 1-2
Manual Transmission
Fluid..........................................................5-19
Operation...................................................2-23
Manual Windows............................................2-12
Message
DIC Warnings and Messages........................3-38
Mirror Reading Lamps.....................................3-15
Mirrors
Manual Rearview Mirror................................2-29
Manual Rearview Mirror with OnStar
®.............2-29
7
Page 326 of 328

Seatback Latches............................................. 1-4
Seats
Manual........................................................ 1-2
Reclining Seatbacks...................................... 1-2
Seatback Latches.......................................... 1-4
Securing a Child Restraint
Passenger Seat Position...............................1-27
Security Light.................................................3-33
Service........................................................... 5-3
Accessories and Modi cations......................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
California Proposition 65 Warning.................... 5-3
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-30
Publications Ordering Information...................7-15
Vehicle Soon Light.......................................3-34
Servicing Your Airbag-Equipped Vehicle..............1-41
Setting the Time.............................................3-47
Sheet Metal Damage.......................................5-75
Shifting Into Park (P).......................................2-25
Shifting Out of Park (P)...................................2-26
Signals, Turn and Lane-Change.......................... 3-8
Speci cations, Capacities.................................5-82
Speedometer..................................................3-22
Starting Your Engine.......................................2-19
Steering........................................................4-10
Steering and Suspension Inspection..................6-19
Steering Wheel Controls, Audio.........................3-69
Steering Wheel, Tilt Wheel................................. 3-6Storage Areas
Center Console Storage Area........................2-33
Cupholder(s)...............................................2-33
Glove Box..................................................2-33
Stuck in Sand, Mud, Ice or Snow......................4-28
Sun Visors.....................................................2-12
T
Tachometer....................................................3-22
Taillamps
Turn Signal, and Stoplamps..........................5-42
Theft-Deterrent, Radio.....................................3-68
Theft-Deterrent Systems...................................2-13
Content Theft-Deterrent................................2-13
PASS-Key
®III+...........................................2-14
PASS-Key®III+ Operation.............................2-15
Throttle System Inspection...............................6-20
Tilt Wheel........................................................ 3-6
Tires.............................................................5-44
Aluminum or Chrome-Plated Wheels,
Cleaning.................................................5-74
Buying New Tires........................................5-53
Chains.......................................................5-59
Cleaning....................................................5-75
Different Size..............................................5-54
If a Tire Goes Flat.......................................5-59
In ation -- Tire Pressure...............................5-50
Inspection and Rotation................................5-51
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