Quote:
Originally Posted by bmwx5er
It's likely that the 2nd key is a replacement key to one from the factory, which needs to be "programmed" by the dealer for comfort access option. Only 2 keys can be registered with the car for comfort access at any given time. The programming needed is to deregister the key that is being replaced (e.g lost key) and register the replacement. Dealers usually charge 1 hr of labor for about 10 mins of work.
Try replacing the keyfob battery to rule out simple issues first.
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This. I bought a replacement key, dealer told me to schedule a time with service to "activate" my key. Parts dept quoted me half an hr of labor (153.50cad an hr). Or 180cad for activation and programming for comfort access. Told him I'll call in later, walked to my car, took the key and plugged it into the slot. It works, when I got home, comfort access works. Love BMW dealerships.