To be honest, this review takes me by surprise. When a customer has issues with their vehicle that could cause permanent damage to the vehicle, or strand or endanger them, it is our duty to inform the customer of the issues. The oil pan gasket was leaking which could cause permanent damage to the motor if the oil level got too low, so I recommended replacement of the gasket. The valve stem was cracked (which is attached to a TPMS sensor). It was bad enough that air could have escaped from the tire. In order to fix that issue we had to replace the valve stem which included a TPMS sensor. We did not diagnose, or charge for a diagnosis of what is actually causing the TPMS alert light that didn't go off, we just know that the sensor that we replaced was cracked and attached to a bad valve stem. I personally take a lot of pride in customer service and retention.