desertdave

We have a 2007 RX350 which we like for many reasons. However, we had occasion to be in the mountains last summer, and experienced the following. When climbing a rather steep driveway, and turning left into a parking pad, the LR wheel encountered some dirt and leaves and did nothing but free wheel. The remaining 3 wheels did nothing indicating that all power was going to the wheel with no traction. This experience went against everything I've ever known or experienced with full time AWD.

The dealer claims that this is the way it's supposed to work which, to me at least, makes no sense at all.

I then consulted an independent Toyota certified mechanic who told me that the way it's supposed to work is that the ABS system, upon slippage, will apply a braking action to the wheel without the traction with power remaining on the wheels with traction. . So, first of all, am I correct that the AWD wasn't working? Secondly, is that the way, (the braking action) is supposed to work. I should add that the independent mechanic, at no cost, did an error code check with no results.

LEXUS is aware of the problem and has yet to fix it ( three years Plus) You can test your car by using a hand held GPS. Then demand your car is fixed. IS250 models in Australia have even worse errors depending on the option rims sizes.

So how do I calculate speed using a hand held Magellan?