i have been told a hard reset is to join the pos and neg together for 20 mins...anyone done this? what does it actually do? thanks.

Join them together after removing cables from the battery - they only need to touch and do not need to be held for 20 minutes. The purpose is to remove any stray voltages in the system that may be keeping any memory alive.

Is the same as switching off your home computer and rebooting it after some clitch.

Garry 07MY RRS TDV6
Arctic Frost
Aspen Interior

many thanks

Sorry to re-awaken such an old thread but I'm thinking of doing this on my 2010. Like Garry said, it's the same as doing a full shut down on a PC to clear the memory.

My question is; Would you guys recommend doing this every month just to keep all the systems sharp or is this something you should only do as a troubleshooting step to see if it rids the car of any glitches? Also, will this affect the 2010-13 models differently than the 2006-09?

Troubleshooting only. No need if everything is working properly.

I agree - not needed unless you have a niggling problem that will not go away. It is simple and no cost so has always got to be the first action to attempt to fix an issue.

But only if there is an issue.

Garry 07MY RRS TDV6
Arctic Frost
Aspen Interior

Thanks guys..... for the longest time I've had the Extended mode issue where the car thinks there's an obstruction under the chassis when I go into access mode and I have never tried this. Do you think this may help? I'm thinking, "wouldn't hurt to try."

I dont think it would help but wont hurt.

If the car is raising when hitting access height - my guess would be that the suspension needs recalibration or maybe there is a faulty sensor.

I run my car on LLAMS at -20mm and sometimes the same happens to me when lowering to access = locking normally overrides the problem.

However in your case try recalibrating the suspension (not sure how it is done but is easy - you will need to research) should fix your issue - if not look for a faulty height sensor.

Cheers

Garry 07MY RRS TDV6
Arctic Frost
Aspen Interior

Mine does that occasionally, according to the garage it's a slightly dodgy height sensor issue.

Calibration is done with something like a iidtool and a ruler.

The IIDTool makes it pretty easy to recalibrate. I did a quick recalibration a few weeks ago with my IIDTOOL but I'm not sure if I did it to the letter so as to get everything back to stock. I just looked at what I had and made the front ones even and then the back ones even although slightly higher. I tried to find a "reset to factory specs" setting but there isn't one. I'll try again today.

Thanks guys

Ok I just did it and I think I gained an extra 200hp