Check engine light came on, Po136 is the code it read, stayed on for 24 hr or less and cleared itself. It stayed running and driving seemingly normal, no strange sounds or smells. What is this??
A replacement downstream oxygen sensor and ECU software update has been developed to correct this problem. California spec vehicles may be covered under warranty for 15 years/150,000 miles for this repair.
Service bulletin T-SB-0072-12;