LX450 Keyfob?

[StaticTorque]

I have a 96 LX450. I just replaced the battery in the keyfob and now it unlocks and locks my truck. But what does the other button do...? (Top one unlocks/lock and bottom I don’t know)
PFA

 

[rolliges]

Did you try it?

 

[StaticTorque]

Did you try it?

Yes I did try it. I thought one was the lock and the other was unlock, but i found out that one button does both. I tried pressing and holding the button down, but nothing happened. The red light on the fob started to blink when holding it.

 

[Greddy0]

Mines never did anything. Only the top button arms and un-arms the alarm.

 

[ppc]

The second button can be used to program a second compatible vehicle.

 

[60 toy ota]

Related question (as I had just replaced the battery and was wondering the same thing), does your alarm go off if you lock it by the remote and unlock it with the key? If so, I'd there a way to stop that?

 

[mrq]

Related question (as I had just replaced the battery and was wondering the same thing), does your alarm go off if you lock it by the remote and unlock it with the key? If so, I'd there a way to stop that?

My ‘94 has done that... It’s odd. You’d think that it wouldn’t make the alarm go off.

 

[jonheld]

Related question (as I had just replaced the battery and was wondering the same thing), does your alarm go off if you lock it by the remote and unlock it with the key? If so, I'd there a way to stop that?

That is the way an alarm system works.
If you arm it with the remote, then the alarm is armed. The alarm has to be disarmed before a door is opened.
The key does not disarm the alarm, it just unlocks the doors.