Lexus IS 250 2014–2015 — technical service bulletin
Bulletin L-TT-0186-15 · NHTSA communication 10132534 · issued Aug 12, 2015
Technical service bulletin
communication type
Parking Brake
component
2014–2015
model years
4
vehicle entries
Official summary
TechTip: Some 14-15 MY IS250/350 vehicles may exhibit a rattle type noise from the rear wheel parking brake area when the vehicle travels over bumps, like lane marker dots.
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.