what size battery do I need on 2006 Kia Sedona

I had a battery supplier look up requirement and he said I needed a 500CCA per OE, but I had a air bag light come on and the dealer looked at battery and said I should have a 700CCA. Who is correct?

Asked by for the 2006 Kia Sedona
A website you may be interested in looking at. Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners.
1 more answer
700 CCA is required for a 3.8L