Thanks for your question! Drive in movies sounds like a great idea! What fun! Let me know if any of these tips work for you! You can find really inexpensive replacement headphones for your 2009 Chevy Tahoe online at vendors such as : If none of the above work, it may be time for new headphones for your 2009 tahoe. * Please check that the volume on your DVD player (and on the headphones) is not turned all the way down. Each side of the headphone has a letter to guide the wearer: вЂњLвЂќ for left and вЂњRвЂќ for right.

If this receiver is on the wrong side of the head, it will not have a clear line-of-sight to the transmitter, causing audio issues. * Please make sure the headphones are being worn properly вЂ“ there is an IR receiver on the headphone to receive the signal from the DVD player. Using the wrong channel will cause intermittent sound issues. * Please make sure that you try both channels on the headphone (there may be a Channel switch on the side of the headphone) as your vehicle may be transmitting on either channel a or b. Sometimes improperly used batteries can cause malfunctions in the performance of the headphone. * Please check to see that the batteries in the headphones are inserted properly, and that they are charged. For security reasons, the headphones will not work in the front seat, or while outside of the vehicle. * Please make sure that users of the headphones are sitting in the rear seat of the vehicle with a clear line-of-sight to the DVD player.

Rear headphone jack not working