Hi there @wjr38 and welcome to the Bose Community!
The RC5 remote is compatible with a large number of our Lifestyle systems, including the Lifestyle 3, 5, 10 and 11 lines of system. For the most accurate information, can I ask which system you're using with this?
Furthermore, can I ask what troubleshooting you may have already tried here (such as replacing the batteries, attempting to pair again etc.) so I don't ask you to repeat yourself?
Please get back to me at your convenience!
Liam W - Community Support
Liam, thanks for the reply. I have the Lifestyle 5 and I did check the batteries and no I did not try to "pair" the remote. I do not know how to do that, can you tell me how.
Thanks for following up with us!
To pair your remote with your system, follow the instructions below:
Let me know how you get on!
Jessie O - Community Support