When I got my Max the previous owner removed them but never replaced them.

I got some from AutoZone ending getting them for $15 because there was no price tag on it and it wasn't showing up in there system for some reason.

One suggestion when you remove the glove box if you accidentally disconnect the airbag connector, when you reconnect it the airbag light will come on. for me it took a few times of shutting the car off and on before the light shut back off.