Honda Odyssey 2011–2016 — technical service bulletin
Bulletin ATS160715 · NHTSA communication 10084442 · issued Jul 12, 2016
Technical service bulletin
communication type
Engine
component
2011–2016
model years
15
vehicle entries
Official summary
"techline summary article - if the engine is overheating and there s engine oil mixed in the coolant reservoir, chances are the cylinder head may be cracked. A crack may form under the front and/or rear camshaft at the journals and is a rare occurrence. You can see this crack from visual inspection. It causes engine oil to enter the cooling system and coolant to enter the engine lubrication system."
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.