Elantra L4-2.0L (2004)
Seat Occupant Sensor: All Technical Service Bulletins
SRS - Occupant Classification System (OCS)
SOURCE: Hyundai Tech Net Times Volume 15 Issue 3 2005
TITLE: Occupant Classification System (OCS)
APPLIES TO: 2004-2005 Elantra
SERVICE TIP:
The Occupant Classification System (OCS) "PASSENGER AIR BAG OFF" indicator light may not turn off or may switch on and off when some
smaller stature adults are seated in the right front passenger seat of some 2004 and 2005 model year Elantra vehicles.
This OCS reprogramming procedure may be performed on an individual customer complaint basis only, and only if the "PASSENGER AIR BAG
OFF" indicator light remains on or switches on and off when small stature adults are seated in the right front passenger position.
NOTE: Evaluations must be made with the passenger who experiences this condition. This procedure is not intended for vehicles which have not
experienced this condition.
VEHICLES AFFECTED:
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Model: 2004-2005 ELANTRA vehicles produced beginning June 12, 2003.
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The OCS is designed to detect when the right front passenger seat is occupied by a child restraint system or a child so the air bag for that seat can
be disabled. The OCS is also designed to detect when the right front passenger seat is occupied by an adult of sufficient stature to make potential
air bag deployment appropriate.
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When an adult passenger is detected, the passenger air bag, passenger side impact air bag, and passenger seat belt pretensioner circuitry is enabled
and the "PASSENGER AIR BAG OFF" indicator light is turned off. If an adult passenger is not detected, or when a child restraint system or child
is detected, the passenger air bag, passenger side impact air bag, and passenger seat belt pretensioner circuitry is disabled and the "PASSENGER
AIR BAG OFF" indicator light is turned on.
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To be able to properly detect a seated adult passenger, the OCS requires the right front passenger to be properly seated (sitting upright with the
