Why should the battery be registered? Sorry I'm sure it's been answered before. What happenes if it's not registered? Does it lead to more problems?

Someone more knowledgeable may provide a better answer. My understanding is that as the battery ages, the capacity lowers (let's say 1/2). The car's computer adjusts for the lower capacity by recharging until that lowered capacity is reached and not anymore. Since the new battery is at full capacity, the car's computer will continue to recharge until 1/2 of the new batteries capacity is reached. You can certainly not register the battery, you may be shortening the life of the new battery by not registering it.

Could a low charge battery lead to electrical problems? I currently have no radio, comfort access, bluetooth, PDC after letting the vehicle sit for a week. It's a 2011 and original battery

Certainly can. When the original battery on our 2012 was starting to go out, the Comfort Access was one first functions I noticed to stop working.

Interesting, I'll have the stealership look into it. It would seem weird to have a faulty amp when they replaced it 1 day before I picked it up. Could very well be the battery is on it's way out. I would assume a new battery through the dealer will be expensive

give them a call for a battery replacement/register quote. my dealer wanted "around $500".

i bought a battery from auto zone for $195, and also bought Carly software and wifi dongle to register it myself. total is less than $500 and I now have a Carly I can use for other purposes

Guy on here earlier posted it was around $325 or so. $250 for battery and installation/registration

You used Carly to register/code your new battery ?
I looked into buying Carly, I didn't see battery registration/coding in the list of features. I sent them a email asking if battery registration/coding could be done with Carly and they replied saying it was not supported.

Because of that reply I didn't buy it.

Maybe I got bad information ?

Here is what you need to know:

Battery Reset | Carly

If you buy Carly, they will extort another 9.95 for the battery coding, as I recall