Honda Civic 2017 — technical service bulletin
Bulletin Customer Letter · NHTSA communication 10143373 · issued Jul 17, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017
model years
1
vehicle entries
Official summary
Customer letter - Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle; refer to the address card for the affected VIN. The 3-way coolant joint was incorrectly manufactured, and may be internally blocked. If the joint is blocked, a technician will not be able to fill the cooling system properly, which may lead to overheating of the engine.
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.