Andy, I did disconnect the battery when I swapped the wheel. However be sure not to leave your key in the ignition while removing the airbag. This is what happened to me and I got the airbag warning light on. Eventually the light was reset by the dealer. Good luck.

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Dinan S1 pkg / 22" Iforged Swift - Toyo 295F*315R / Eisenmann Race - OEM tips / H & R 15mm front
30mm rear spacers / Euro-spec headlights / CF M Competition steering wheel / Full CF interior /
6000K D2S / HID fogs / AiBrights V3 / Interior Xenon / LED sidemarkers / Matte black grille & hood vents