What should I do if my remote is not responding to commands?

First, ensure batteries are installed correctly and have sufficient charge. Check that there are no obstructions between the remote and the TV's infrared sensor, and verify that the remote is within the effective range of 8 meters. If the issue persists, ensure none of the remote buttons are jammed or stuck, and clean the battery terminals with a small solution of alcohol using a cotton bud or soft cloth.