Lexus LS 2007+ :: Intermittent Airbag Warning Light Came On

I am the original owner of a 2007 LS460 with under 36K miles. Recently, my SRS (Airbag) warning light came on, but after I restarted the car it went off. However, shortly thereafter it came back on again, but it went off after I restarted the car. The last time it came on it stayed on. So I brought it into the dealer 2 weeks ago to diagnose it. They provided me with a service loaner ES350 and I'm still waiting for their decision as to what, if anything, they will do.

I discovered that on January 13, 2010, Lexus issued Service Bulletin Number 282827 in response to the National Highway Transportation Safety Administration (NHTSA) Action Number 10033557. Here is the Summary: "Lexus supplemental restraint systems. Some model vehicles may exhibit an srs light on condition with dtc b1861 and/or b 1866. After confirming the vehicle condition matches the bulletin, it will direct you to replace the instrument panel."

It appears that my LS460 matches that bulletin. Note that this is a Service Bulletin and NOT a recall, notwithstanding the fact that it pertains to a safety system, namely, SRS - the supplemental restraint system (airbags). My Service Adviser told me that because Lexus has not received enough complaints this matter has not been escalated to the level of a recall. He did not tell me how many complaints were received.

Because my car is out of warranty, my Service Adviser requested a courtesy repair from Lexus for the following reasons: (1) I purchased 2 brand new vehicles from this dealer (LS460 and RX350); (2) both vehicles have been serviced by the book; and (3) my LS460 has under 36K miles.

I would like to know if any other LS460 owners have experienced a similar intermittent airbag warning light and, if so, how that was resolved.