They are just power mirrors. I thought it was going to be a quick job, looks like I have to take the door panel off.
1999 sr5's and up have heated mirrors--the 97 might not have heated mirrors but I'm sure the 99 does.
How would i know if they are heated. I can see that its not the original glass in my 99 thats why I want to replace it.
You don't have to remove the inside door panel to remove the 4runner mirrors....just the tweeter cover is removed, then disconnect the mirror plug there, and the three bolts that hold the mirror on.