Current US Atlas key fobs are commonly grouped with Taos and Jetta on a CR2032 coin in dealer notes. That is a shopping shortlist, not a reason to skip the stamp in your cover.
Shell notes
Atlas remotes in current US trim walks are typically Kessy-style pebbles. Open at the slot left when the hidden blade slides out. Seat one CR2032 unless the molding says otherwise. Skip CR2450 and A23.
After the swap
Lock and unlock once outside. Pairing does not reset when the coin changes. Door handles that ignore you while buttons still work can be a separate motion-sensor pattern—not a reason to buy a new key first.
Related guides
FAQ
What battery does an Atlas key fob take?
Usually CR2032 on current US notes—confirm the stamp.
Same as Taos?
Dealer notes often group them; verify before sharing a spare coin.
Need programming after the coin?
No for a battery-only swap.