Hi and welcome...

No, the only way CA system works is if you have the BMW CA Key fob with you, like normal.

The RS system only fools the X5 into thinking there is a key fob in the key-slot to allow it to start, but it won't activate any of the CA features. The X5 remains locked until you unlock it either with CA, or by pressing the unlock on one of the LR remotes or a BMW key-fob.

BTW, the third party LR remotes don't activate the CA either, so if you want to use the normal CA unlock/lock feature you will have to carry both a LR remote and your CA key fob. The only "downside" that I have found

Thanks for asking,
John B

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2008 4.8i X5 (2/25/08) 105k:
Titanium Silver/Black; All -HUD; Aero Kit; 22" VS-130 w/Pirellis;
///M Shifter & Fr Brakes; Gauge Rings; Console Pads; Custom Wheel & Mats; Roof Rails
Carbon Fiber: Int Trim, Nav Surround, Grill, Cluster Trim, Shifter & Eyelids
1.2" H&R; LUX AEs; LCI Tails; Rear Fogs; NBT EVO; ESS Tune; Meisterchaft GTC Exhaust