My 06 400h had the ac "white dust" fix about four weeks ago and ever since then without any passenger the passenger airbag off light comes on at various times for random intervals. The local Lexus dealership calibrated the seat last week and blamed it on a rear facing scuff guard with a 1/4" piece of elastic that wrapped around the front of the seat, tucked into the front crack (children had shoe marks all over the seat back). I installed the guard the morning I took the vehicle in so I know this was not the fix and think Toyota/Lexus should be in more hot water with the US if a dealership claims a weak elastic band can disrupt the passenger safety system. The light seems to function as usual with passengers: stays lit Airbag On with heavier passenger and Airbag Off with lighter passengers. Twice the buzzer sounded out while driving as if I had a passenger without a seat belt on but I had an empty seat. Any ideas? Is the erratic behavior of the light normally function? Thanks

 

I remember my Father's 07 RX350 having the same issue.
He took it in and they (dealer) put a new side airbag assembly.
Covered under warranty.

They had a TSB about it. Good for 6yr/70k miles

 

Thanks. Any idea of the tsib number or dealership? I could give them a call because my dealership does not have a clue.

 

RX 350 2007
134k miles
light has been blinking for 70k (purchased used)
dealer said it is an open, service bulletin, no air bags will work, $1800 to fix
called Lexus, will hear back next week
Aug 23, 2014