Mazda CX-5 2016–2020 — technical service bulletin
Bulletin 01-010-24 · NHTSA communication 11011134 · issued Nov 28, 2024
Technical service bulletin
communication type
Engine
component
2016–2020
model years
10
vehicle entries
Official summary
Some vehicles may have coolant leaks at the cylinder head around the exhaust manifold (as shown below). There may be cracks at the stud bolt hole (1) or at the outside of the exhaust manifold flange (2) on the cylinder head.
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.