Sorento 4WD V6-3.5L (2011)
Seat Occupant Sensor: All Technical Service Bulletins
Restraints - Air Bag Lamp ON/Multiple DTC's Set
GROUP Body
NUMBER 072
MODEL Sorento (XM), Optima (MG), Rio (JB)
DATE October 2010
SUBJECT: TROUBLESHOOTING DTC B1447/B1448/B1764/B1767 (AIRBAG WARNING LAMP ILLUMINATED) ON VEHICLES WITH
ELECTRIC FIELD OCCUPANT CLASSIFICATION SENSOR
This bulletin provides information relating to the occupant detection and classification system on certain Sorento (XM), Optima (MG) and Rio (JB)
vehicles as shown below:
The purpose of this TSB is to ensure a proper response to the appearance of certain DTC codes that identify a certain temporary condition. On these
vehicles the occupant detection and classification system uses an electric field sensor instead of a pressure sensor. The customer is advised in the
Owner's Manual not to place any electronic device on or near the seat cushion because it can defeat the OCS. The electric field sensor is sensitive to
interference from certain electronic devices, and is also sensitive to the seat getting wet.
If certain electronic devices such as cellular phones, laptop computers, inverters, DVD players, radio transmitters, GPS navigation systems, satellite
radio systems,video games, and MP3 players are put on/around a passenger seat cushion (including in the seatback pocket) or if liquid is spilled on the
seat cushion, the airbag warning lamp may illuminate with DTC B1447, B1448, B1764 or B1767.
Before attempting to diagnose or repair the occupant classification system:
1 Verify that the seat cushion is completely dry.
2 Verify that nearby electronic devices are turned off.
3 Clear DTC(s).
