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I got some wheels and tires to use on the track, and they came without the tire pressure sensors. I found I was unable to turn off the active handling - I could turn off traction control but when I continued to hold the button to turn off active handling, I just got the service tire pressure message.
Why is this? Is there any way around this when there are no sensors?
I did find that if I turned off the engine, turned it back on and pressed reset when the service message appeared that it went immediately into competition mode which is fine, but I usually track with everything off.
My experience is that while taking a corner at 50ish and stepping on the gas the car started to fall on its nose. I looked around for a DIC message but could not find one. Then I checked my tire sensors and two right side tires were down a couple of pounds. I added air and the problem went away. There are so many sensors on these cars and all talk to the computer. The active handling is responsible.
Unlike the C5, the C6 interprets a missing sensor as a flat. The manual clearly states that a maximum of .7 g's is the limit without a properly functioning pressure sensor in all 4 corners. It also states the car will not go into performance mode for safety reasons since it inter[prets the info as a flat. The system doesnt reset right away so if you change the rear wheels out you can get a missing sensor malfunction anywhere from right away to hours later.
People that have the original wheels stacked next to their car in the garage are insistant that none of this is true but that is because the sensors in the wheels next to the car in the garage are simply sending the pressure info upon start-up.
All this information is in the owners manual in the pressure sensor section. It isnt fiction. Hope this helps
I think your best choice is to install the pressure sensors in your track wheels. Of course you will then also need the correct tool to re-train your car eveytime you switch wheels. On the good news side, both the extra sensors and the tool will hold some value if you ever decide to sell them.
If for some reason you do not want to install the sensors into your track wheels, there is a workaround but you will still need the sensors and the tool, but instead of mounting the sensors in your wheels, you build a simple "pressure cannister" and mount the sensors into that and keep it in the back in one of the cubby holes.