Ok let's try again. Check and make sure you are using CR2025 batteries. Did you replace both batteries?

Very important. The system may have to be resynchronized if the transmitter is without voltage for several minutes. To synchronize, aim the tramsmitter eye on the remote at the vehicle and briefly press the Lock or Unlock button twice. Within approximately 30 secs, insert the key in the ignition and turn it to the ON/RUN position. The remote should be operational.