When It Is Time for New Tires
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. See Tire Inspection and Tire Rotation for more information.
The rubber in tires ages over time. This also applies for the spare tire, if the vehicle has one, even if it is never used. Multiple conditions including temperatures, loading conditions, and inflation pressure maintenance affect how fast aging takes place. Tires will typically need to be replaced due to wear before they may need to be replaced due to age. Consult the tire manufacturer for more information on when tires should be replaced.
See also:
Navigation
This display is used for the OnStar
or Navigation System Turn-by-Turn
guidance. See OnStar Overview or the navigation manual,
if the vehicle has navigation, for
more information. ...
Playing a CD
Insert a CD partway into the slot, label side up.
The player pulls it in, and READING displays. The
CD should begin playing. If you want to insert a
CD with the ignition off, first press the ejec ...
Safety
Side-impact airbags and all-disc antilock brakes are optional.
Driving Impressions
Despite structural similarities to the wildly styled Pontiac Aztek, Buick’s
crossover model has a personality ...
