Evening! Noticed that the left side bolster on my drivers seat does not want to inflate. When in dynamic mode, it clicks, wants to move, then gives up. I've had the seat back off, hoping it would have been a loose hose, but from what I can see, all seems to be intact. I tried to inflate the bolsers manually and got a venting of air, like some form of pressure release valve is passing. Any suggestions on where else to look, or should I just lean on the Tier 1 warranty?