The official notice
Defect
Porsche Cars North America, Inc. (Porsche) is recalling certain 2016-2017 911 and Boxster, 2016 Cayman and Panamera vehicles. The air bag Electronic Control Unit (ECU) may have a defective power supply capacitor that can result in air bag deactivation or inadvertent deployment of the air bags.
Safety Risk
Deactivated air bags increase the risk of injury. Inadvertent deployment of the air bags increase the risk of a crash.
Remedy
Porsche will notify owners, and dealers will install new software and replace the air bag ECU as necessary, free of charge. Interim notices informing owners of the safety risk were mailed September 13, 2019. Owners received a second notice and the recall began February 12, 2020. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AKB4.