Tire inflation (PSI) range for offroading?

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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by PARAGON:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by HummerNewbie:
Don't know if that is the correct PSI or not but the sensor will always beep at you under a certain PSI. I am hoping someone figures out how to turn it off. These sensors are required on all vehicle as of 2006 I believe. </div></BLOCKQUOTE>Ok, surely somewhat had some forethought with this. Any time traction is decreased lowering tire pressure will provide better traction, hence the H3 being an off-road vehicle it should be expected that one will be lowering the pressure.

How does this crap work? Is it when you put the key in, put it in drive, at a certain speed. GM should have something that cuts it when the truck knows you are offroad or all 4 tires are down or something. </div></BLOCKQUOTE>

GM, like all other manufacturers are obeying Federal Regulations, and those regulation do not allow for deviations to allow for off-roading, or at least I can't seem to find a deviation.
Instead of blaming GM, write your representative in DC, and complain. Jeep/Ford, all of them will probably have the same problems with their '06 models.
The reason for this regulation was the Ford/Bridgestone fiasco.
Ford had the recommended pressure 4 psi lower than recommended by Bridgestone, most of the rollovers were in hot weather, tires were under inflated, as most are on the roads these days, and the vehicles were overloaded. Under inflated tires, overloaded SUVs, hot weather, interstate travel...they were accidents waiting to happen.
So, due to a bunch of idiots who never check their tire pressures, we all are now paying the price; monetarily and mentally.

As to turning off the system, not sure if it can be programmed off anymore due to the Fed. Reg (older cars could have it programmed off). The sensors in each wheel send an RF signal to the remote control (keyless entry) module, which in turn signals the BCM via a class 2 serial data feed, and if required, the BCM signals the instrument cluster to notify the driver of a problem, while it makes the noise.