Acura MDX 2017–2019 — technical service bulletin
Bulletin B17120D · NHTSA communication 10150422 · issued Nov 19, 2018
Technical service bulletin
communication type
Back Over Prevention
component
2017–2019
model years
3
vehicle entries
Official summary
Servicenews Article - If any of the accessory rear parking sensors look crooked or have recessed into the bumper, make sure the two clips on the rear bumper harness were removed as called out in the installation instructions. If they weren't, they can cause too much tension on the sensors with the harness installed, resulting in this issue.
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.