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.
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.
Citroen C3. Manual air conditioning
Manual control panel
Electric control panel
The heating/ventilation or air conditioning
systems can only operate with the
engine running.
1. Temperature adjustment
Turn the dial from blu ...
Peugeot 208. Hill start assist
System which keeps your vehicle immobilised temporarily (approximately 2 seconds)
when starting on a gradient, the time it takes to move your foot from the brake
pedal to the accelerator pedal.
T ...
Seat Ibiza. Heating and ventilation
Controls
Fig. 91 On the dash panel: Heater controls
– Using the controls ⇒ fig. 91 and
and with the switch
you can set the temperature, air distribution
and the blower speed. – Pre ...