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.
Tire Rotation
Buying New TiresFuel Tank Filler Door Replacement
Fuel Tank Filler Door Replacement
Callout
Component Name
1
Fuel Tank Filler Door
Procedure
Position the fuel tank filler door to the full open position. Using light
outward sliding pressure on the filler door, ...
Front Wheel Drive Intermediate Shaft Replacement
Front Wheel Drive Intermediate Shaft Replacement
Callout
Component Name
Preliminary Procedure
Raise and support the vehicle. Refer to Lifting and Jacking the
Vehicle.
Remove the wheel drive shaft assembly from the vehicle ...
How to enable/disable the sonar system
Vehicle information display
Steering-wheel-mounted control (right side)
The Nissan Armada sonar system is automatically activated when the ignition is
in the ON position and the transmission is placed in D (Drive) or R (Reverse), ensuring
immediate assistance during low-speed maneu ...