One problem related to warning light on has been reported for the 2009 Toyota Matrix. The most recently reported issues are listed below.
My fiance' and I received a recall notice from Toyota for a safety recall to remedy the sprial cable that controls the airbag warning light. The recall notice told us to take the car to a Toyota dealership to have the car repaired free of charge. When we took the car for repair they said it had already been repaired and after checking with the manufacturer they stated it had been fixed on March 2, 2016 in NJ. The car was in maryland on that date under my ownership so we do not understand how they could have repaired the car. They want to charge us for the diagnostics and possibly the repair since they insist that the car was already repaired. We have an airbag warning light located on the instrument panel that will not go off. This warning light is the same light on the recall notice. Toyota does not want to fix it without a fee, and they believe they have already fixed the problem. The light remains on our car to date. We would like an investigation of this mater before seeking legal counsel to rectify the safety problem. The vehicle was parked when the light illuminated and does not go off while driving the car.