During a configuration review at the supplier for an unrelated manufacturing issue, FCA US LLC Product Engineering became aware of an error with an airbag squib driver circuit that identified three internal faults not mapped to a diagnostic trouble code (DTC). An investigation was opened and it was discovered that some 2021 Jeep Grand Cherokee, 2022 Jeep Wagoneer, and 2022 Jeep Grand Wagoneer vehicles may not set a DTC, and the airbag warning indicator may not illuminate.

The problem started in February 2021, when occupant restraint controllers (ORCs) with an incorrect software version were introduced into vehicle production, through to November 1, 2021, when the suspect ORCs were no longer used in vehicle production. Vehicle and supplier production records were used to determine the vehicles included in the recall population.

According to the defect report, “If specific ORC internal faults are active then a DTC will not be set and the airbag warning indicator may not illuminate. The internal faults will disable deployment of both the driver and passenger airbag squib 3 (related to airbag venting post-deployment) and knee airbags. The airbag warning indicator may not illuminate to notify the driver of possible compromised airbag system functionality. Reduced occupant protection in the event of a crash may result in an increased risk of injury to motor vehicle occupants.”

Owners receiving notices will be asked to return to their FCA dealers to have the occupant restraint controller reprogrammed with the correct software version that maps subject internal faults to a DTC. FCA US, LLC’s number for this recall is Y79 and the NHTSA campaign number is 21V-873.

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