Porsche Cars North America, Inc
If the brake booster was damaged during installation, the vacuum in the brake booster may drop when the brakes are actuated, resulting in a reduced brake force boost, increasing the risk of a crash.
Fix: Porsche will notify owners, and dealers will inspect and replace the brake booster, as necessary, free of charge. The recall began on December 29, 2014. Owners may contact Porsche customer service at 1-800-545-8039. Porsche's number for this recall is AE02.