Your keyless remote might not work for your 2002 Chevy Tahoe because the battery in the remote is dead. You can replace this battery by prying the remote cover off of the back of the remote or by removing the screws holding the cover closed.
No.
The dealer scan tool is required to program a remote.
One reason that a keyless entry remote will not open the doors is a dead battery, either on the vehicle or the key itself. Another reason is that the remote needs to be reprogrammed.
Needs remote starter installed
That info MAY be at programyourremote.com (program your remote.com)
That's a dealer item.
this a lot of bs, please unsubsrcibe me from your site.
programyourremote.com simply put.. "Program Your Remote.com"
According to AllData, it is located behind the IPC.
disconnect the batt... for 5 to 10 min to reset
See FOB PROG (Remote Keyless Entry Transmitter Programming) on page 2-29 of your "Owner's Manual", under Section 2: Features and Controls - Vehicle Customization Settings.....