Toyota C-HR 2018–2019 — technical service bulletin
Bulletin T-TT-0563-19 · NHTSA communication 10164900 · issued Aug 12, 2019
Technical service bulletin
communication type
Wheels
component
2018–2019
model years
2
vehicle entries
Official summary
TT: Abnormal noise while driving at 45mph or above * Vehicles that have Dunlop SP Sport 5000 225/50R18 * Vehicles under 10,000 miles and OE wheel and tires
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.