How to know RAS is working

Shvilkovsky

Member
Car
2014 QX70S 30d AWD
Name
Sandro
Hi all,

I drive a 2014 QX70S with about 85k miles on it. I bought it second hand at 60k.

Given its age and miles, I have made a point of making sure everything works. But I can't figure out how to be sure the rear active steering is working.

As I understand, it doesn't activate while stationary or at low speeds (under 30mph or smth). So can't just turn the wheel while parked.

Any suggestions how I could go about "checking" it? Is there something I'm supposed to feel while driving that I can look out for? Or some other tell that it's actually turning those rear wheels? I've never driven cars with such systems before so I have no idea what they are meant to feel like.

If I were to use a go pro or smth to film the wheels, where would you suggest I film? I understand it's a very minor several degree movement, so I'm not sure it would even be visible if I filmed, say, the wheel itself.
 
Hello,
If you have an action cam put it in direction of rear wheel and make a run whis alot of turn an normally, you'll see the action of RAS :)
 
As I understand the system, it can only move the rear wheels one degree, which will be almost impossible to see on video. There is a RAS dummy light on the dashboard, so if that isn't lit up, then I think it's safe to say the system is working.
 
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