Factors such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for new tires.
Treadwear indicators appear when the tires have only 1.6mm (1/16 in) or less of tread remaining.
The rubber in tires ages over time.
This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple factors including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. GM recommends that tires, including the spare if equipped, be replaced after six years, regardless of tread wear. The tire manufacturer date is the last four digits of the DOT Tire Identification Number (TIN) which is molded into one side of the tire sidewall. The first two digits represent the week (01–52) and the last two digits, the year. For example, the third week of the year 2010 would have a four-digit DOT date of 0310.
Vehicle Storage
Tires age when stored normally mounted on a parked vehicle. Park a vehicle that will be stored for at least a month in a cool, dry, clean area away from direct sunlight to slow aging. This area should be free of grease, gasoline, or other substances that can deteriorate rubber.
Parking for an extended period can cause flat spots on the tires that may result in vibrations while driving. When storing a vehicle for at least a month, remove the tires or raise the vehicle to reduce the weight from the tires.
Power Outlets
The accessory power outlets can be used to plug in electrical equipment, such
as a cell phone or MP3 player.
There is one accessory power outlet located on the center floor console and one
on the rear of the center floor console. These outlets are powered when the key
is in ON/ RUN or ACC/ACC ...
Installation Procedure
Cut the front compartment upper side rail in corresponding locations to
fit the remaining original panel. The sectioning joint should
be trimmed to allow a gap of one-and-one-half-times the metal thickness at
the sectioning joint.
Create a 50 mm (2 in) backing plate from the unused ...
Battery
Refer to the replacement number on the original battery label when a new battery
is needed.
WARNING
Battery posts, terminals, and related accessories contain lead and lead compounds,
chemicals known to the State of California to cause cancer and reproductive harm.
Wash hands after handling.
...