The official notice
Defect
Tesla, Inc. (Tesla) is recalling certain 2016 Model S and Model X vehicles. The electric parking brake calipers have an internal gear that may be improperly manufactured, possibly resulting in the gear fracturing during parking brake application or release.
Safety Risk
If the gear breaks during parking brake release, the vehicle will not be able to be moved. If the gear breaks during parking brake application, the parking brake may not adequately hold the vehicle, potentially resulting in the vehicle rolling, increasing the risk of a crash.
Remedy
Tesla will notify owners, and service centers will replace both the left and right electric parking brake calipers, free of charge. The recall began March 6, 2018. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-17-33-002.