Key Fob not Unlocking

[Shaker]

Yesterday I posted about battery drain issues & the fact that the car failed to start, so battery voltage would have dropped very low.
Today I found that the key fob will lock the doors but won't unlock them, the rear hatch unlocks, fortunately, as I didn't know about the concealed key lock.
Would the low voltage have caused an issue with the remote locking/unlocking?
Thanks.

[Hillbilly]

Yes can do as not enough juice to activate unlocking. Had it happen to me from low battery Could also be a flat battery in the remote Easy to change Youtube will show you how

[Shaker]

Yes can do as not enough juice to activate unlocking. Had it happen to me from low battery Could also be a flat battery in the remote Easy to change Youtube will show you how

Sorry, I should have said that I charged the battery & had driven the vehicle about 15kms, also after noticing the unlocking problem I changed the key fob battery as well. It locks ok, also will unlock the tail gate, but won't unlock the doors.

[Johnny]

If I'm not mistaken, then all keys need to be reinitialised. I believe there might be a thread here somewhere on how to do this.

[Hillbilly]

Have had about 4 flat battery occurrances and never had to do anything to the keys Both still work once battery comes up

[Johnny]

I have it in the back of my mind that once you use the key in the door lock, the key fob will not function correctly. Which is why I believe the key fob needs to be reinitialised (I could be wrong)

[MGV]

I've been using key in the door lock at least weekly for over 6 years, no issue ('surf key'). I believe there would be an issue if i tried to use the 'surf key' in the ignition, which would need for the key to be reinitialized. Maybe that's what you were thinking of, Johnny?

[JustCruisn]

Try locking and unlocking the driver's door manually with the key, then insert into ignition to ACC and off again. The remote part may work again after that.