A defective sensor in the airbag (SRS) system can cause the airbag malfunction light to illuminate.Google+
Car Problem Reports
Toyota Sequoia Airbag Light Due to Defective Sensor in Airbag System
Toyota Sequoia Problem
Average Mileage: 135,516 mi (79,100 mi - 179,000 mi)
My airbag light won't go off either; it's effecting the horn and the cruise control, too. I've tried to get it fixed twice at separate dealerships, but the first one couldn't figure it out and the second one tried to make me sign off to pay for it "in case it wasn't covered" by my platinum extended warranty I bought from Toyota. I guess Toyota's "commitment to safety" was just a bunch of empty rhetoric.
Air bag light out and won`t go away.Affecting the horn and Cruise control as well. And now my Tail gate window will not work. And toyota is telling us how reliable their vehicles are... I guess that I was just too stupid to believe them.
Visitor, 2002 Toyota Sequoia, 179,000 mi
no horn no crusie control steering wheel make nosie wile turning
Visitor, 2002 Toyota Sequoia, 174,000 mi
pop noise occurred in steering column and then the airbag light came on and the horn stopped working. Not much on the internet about how to fix.
Visitor, 2002 Toyota Sequoia, 140,000 mi
Airbag light comes on, cruise control will not engage.