I had a TSB on the lift gate on our 2012 Highlander. Took it in, got a brand new (258 miles) Camry for a loaner, drove it all over for three days, went back and got the Highlander. No further problems. No charge. Did not even have to fill the loaner with gasoline. Toyota has been good to me. I’ll give my service guy a call or stop in. There’s a very good sporting goods and camping store just down the street and a nice auto parts store with a lot of tools nearby too. Time will tell.
Strike while the iron is hot. Live every day as if it were your last and one day you will be right.