Have you noticed an increase in price when you get a flat tire fixed in Marion, or have your tires rotated? It might be the result of your TPMS, or Tire Pressure Monitoring System.

The federal government began requiring a TPMS system on 2008 model year passenger vehicles and light trucks. Some 2006 and 2007 models may have them as well. The system has a warning light that is mounted on the dashboard that will go on if one of the tires becomes severely underinflated.

Why the new requirement? Because underinflated tires are the number one cause of tire failure. Tire blowouts cause crashes and sometimes fatal accidents. Underinflated tires also need longer stopping distance and can skid, both of which also present dangers on Iowa roads. Many flat tires can also be prevented by proper tire inflation, and though this may seem an economic consideration, Marion drivers who have changed a flat on the side of the road recognize that this has serious safety concerns as well.

Advances in tire technology, specifically the development of radial tires, has made it harder for Marion drivers to recognize when a tire is underinflated. At a recommended pressure of 35 psi, a tire is seriously underinflated at 26 psi. But the tire doesn't look low on air until it reaches 20 psi. This raises concerns about vehicle owners being able to tell when their vehicles are a safety hazard on the road. Hence, the TPMS.

So, like seatbelts, the TPMS system is expected to save a lot of lives. The technology has been in use in race cars for years, and now it's being mandated for all passenger cars, SUV's, minivans and pick-ups. Besides warning drivers in the Marion area when their tires need air, the system is required to indicate when it is malfunctioning.

This increased safety won't come without increased costs. Estimates regarding the cost of maintaining the TPMS on your vehicle run from $27 to $100. Also, there will be an added cost for tire repair. Marion service centers have had to purchase new scanning equipment to work with TPMS sensors and other equipment to repair tires and wheels equipped with TPMS. The pros at Blair's Ferry Automotive have to be trained to use the new equipment. These costs will have to be passed on to Marion drivers.

Further, whenever a tire is changed, Blair's Ferry Automotive will have to deal with the TPMS. Sensors will have to be removed, then re-installed and re-activated. Sometimes the act of changing a tire will damage a sensor, and it will need to be replaced. These extra services will come at an added charge to Marion drivers.

Tire rotations will require that the TPMS be re-programmed. And whenever a vehicle's battery is disconnected, the TPMS will require re-programming as well.

The TPMS itself will require attention – it contains batteries and sensors that will wear out and need to be replaced.

So, if you've noticed an increase in the cost for vehicle care at your Marion tire center, it may not be the economy. It could be the cost of the TPMS in newer vehicles. Before you dash off an angry letter to Congress, however, stop and consider what you're paying for. If predictions are correct, the TPMS will save lives, and that will be a benefit to all of us.

Of course, no warning system will save lives in Marion if drivers don't pay attention to it. And remember that the warning doesn't come on until the tire is severely under inflated; you still should check your tire pressure at least once a month. You can prevent accidents and potentially save lives without a warning system by keeping their tires properly inflated.

Safe driving!

Blair's Ferry Automotive
1565 Blairs Ferry Rd.
Marion, Iowa 52302
319-447-6310
http://www.blairsferryautomotive.com

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