click the unlock button twice. if this doesn't work contact your dealer...
I had the same problem. Google "keyless entry remote 2003 Jeep Grand Cherokee".
I found a remote for my 1997 Grand Cherokee on Ebay. type in the number "05014736". The remote if for the newer generation Grand Cherokee, but I took it to the dealer, and they programmed it for free.
the dealer does it with a scan tool
replace the remote
Possible weak battery in the remote.
No, remote start was not a factory option in 2000.
English please. This is America. If you cannot manage that then take your Grand Cherokee to the El Dealer for repairs.
Check Google.com
Advance auto and Carquest auto parts.
You have to program it with a DRB (Scan tool).
centre top dashboard (red dome)
All you do is push the button on the remote, then turn the key in the ignition to "ACC" within usually 10 mins