Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month.
Replace the tire if:
► The indicators at three or more places around the tire can be seen. ► There is cord or fabric showing through the tire's rubber. ► The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric. ► The tire has a bump, bulge, or split. ► The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.See also:
Once a Year
• Starter switch check. See Owner Checks and
Services.
• Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services.
• Automatic transmission shiftl ...
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some
driving tips to get the best fuel economy possible.
• Avoid fast starts and accelerate smoothly.
• Brake gradually and avoid abrupt stops. ...
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted to
change the PIN the first time when
speaking with an Advi ...
