TIRE TIPS

Tire inflation is the single most important, and most often overlooked, part of automotive care. Operating a vehicle with just one tire underinflated by 20% (about 8psi) can reduce the tire’s life by 9,300 miles and can increase fuel consumption by 4%. Owners should check tire inflation at least one time per month and periodically review their vehicle’s computer based system for tire pressure readings.

The tire pressure monitoring system which is standard equipment on all 2008 or newer GM models, uses a direct measuring sensor in each wheel. A warning is displayed to the driver whenever pressure drops below 75% of the recommended pressure. Weather can affect the reading because of the temperature changes that occur in the tire when the temperature increases during the day.

In Louisiana, weather typically rises substantially during the day in winter. This can cause the tire pressure monitor to alert the driver. All that may be necessary is the addition of a minimal amount of air into the tire. Additionally, customers who have tires replaced or rotated at non-GM dealership facilities may experience problems with the monitor after the change or rotation. This is because non-GM repair facilities either do not have the equipment to reset the monitor or are unfamiliar with the monitor’s operation and repair. If the vehicle is brought to the dealer because another facility was unable to reset the tire monitor or the malfunction is cause by another repair facility there may be a small charge for the reset.

For best results, have all maintenance done by the factory trained technicians at the GM dealership. Important information to know is that when the tire pressure light remains solid to indicate low pressure then air needs to be added. If, however, the light blinks for about a minute and a service tire monitor message displays, then there is a malfunction in the sensing equipment. At that time, a review and possible repair by your GM trained technician might be necessary.