Bamf1332

Just got in truck and realized my lights weren’t working. After shutting truck off and the. Restarting it a minute later I can turn lights on if I put switch into ON, but only if I do it before shifting out of park. Once I shift out of park I cannot manually turn them on if I didn’t prior. My lights run all the time due to mine being a Canadian model originally. Is this looking like a BCM issue or maybe just a switch. Newer to the Sierra trucks

2015 Sierra base model. Right turn signal just quit working. Left works fine and hazards work just fine. Is there a fuse or relay for the right side or what. Only had truck for 2 days.