Trouble with keyfob buttons

So for a while now my 2021 xle is fine starting the car detection the key, but I haven't been able to lock or unlock the car using the buttons on the keyfob. I've already replaced the key battery and had the rav4 battery tested which was all good. After some googling I saw a culprit could be the tpms keyfob receiver assembly but not sure how to access that carefully and attempt to unplug and reply that. Has anyone gotten this problem had it fixed somehow? I can't see my local Toyota dealer for a few days