2012 Subaru Tribeca Engine problems

Tl* the contact owns a 2012 subaru tribeca. While parked, the front driver and passenger side doors failed to open from inside the vehicle. There was also an oil leak under the vehicle and the headlights and brake light bulbs were replaced several times. The vehicle was taken to a dealer where it was diagnosed with an oil and head gasket leak. There was no diagnosis for the doors not being able to open and the frequent bulb outages. The vehicle was repaired for the oil and head gasket leak. The manufacturer was not notified of the failures. The failure mileage was approximately 30,000.