2018 VOLVO V90CC Exterior Lighting Problems

When it rains, I receive a warning that the rear position lights are failed. The left tail light stops working and I'm without a signal and brake lamp. This issue resolved its self when it's had time to dry, usually within two to three days.

Rear Position Light Malfunction on my 2018 Volvo V90 CC. The winter finally came yesterday and it rained the whole night. After I started the car in the following morning and drove for around 2 minutes, the warning popped up. I found out the rear position light of the whole left side doesn’t work, included the position light on the tailgate. But so far, every light works well except the position light. I tried to restarted the car, the warning didn’t pop up and the left position light worked for a while like 1 minute, then the warning came out again and the position light was back to off. So right now it’s so risky to drive at night or on bad weathers because other cars follows me can only see one side of the position light, makes them hard to see my whole rear part. I may need to...