The recall involved 2006-11 model year Grand Vitara and 2007-11 SX4 vehicles, the National Highway Traffic Safety Administration said.
The NHTSA said an OCS sensor mat installed in the front passenger seat may fail due to repeated flexing of the mat just from using the seat.
If the sensor fails the air bag could deploy whether there is an adult or a child in the seat. However, the air bag is not supposed to deploy with a child in the seat.
Suzuki said it would replace the front passenger seat cushion assembly. However, it will take time to secure sufficient supplies of replacement parts, the NHTSA said.
Suzuki will contact vehicle owners in October to notify them that the parts are available.
Consumers were advised to call 800-424-4236 for information.
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