One problem related to side/window air bag has been reported for the 2009 Hyundai Santa Fe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Hyundai Santa Fe based on all problems reported for the 2009 Santa Fe.
The passenger side air bag sensor (OCS) remains in the off position when my small stature wife (5 ft 98 lbs) rides in the passenger seat. This is a major safety concern that I would like Hyundai to correct. I read that some 2009 Santa Fe models had a recall due to this exact issue (recall campaign 105) but mine model does not seem to be included. I am not sure why but since my 2009 Santa Fe has the same problem as the recall addressed. This has been a problem since we purchased the vehicle in 2009. Our local dealership told us that there is nothing they could do. Now I see on the NHTSA website that Hyundai can update the OCS classification software. I believe Hyundai should update my vehicle's software at no charge.