Engine
The loose bolts could cause the VVT gear housing and sprocket to separate and result in the engine stopping while the vehicle is being driven, increasing the risk of a crash.
The engine could stall while driving due to an internal engine failure. This increases the risk of a crash.
You must contact and visit a Lexus dealership to perform recall repairs on your Lexus vehicle. The schedule for Lexus to contact known owners of affected vehicles was during 2013. If you did not receive a notification, but wish to check to see if your vehicle is included, please contact one of your local Lexus dealerships. They will also check for any other incomplete recalls on your vehicle. For best results, be prepared to provide your Vehicle Identification Number (VIN) to the service department consultant you speak with.