etaynor

Hi, Not long ago, i programmed my three garage door openers in my GLC 300 2021. The other day, the middle switch stopped pairing with the opener.
How do I reprogram the middle key on the mirror? Do I have to delete all three and start again or can I reprogram the one key? Thanks

abacnus

Pretty sure you could just reprogram the middle one without starting from scratch

mikapen

You can, but in my experience I'd add "If you're lucky."
Sometimes you just need to erase all and start over.