Polaris Slingshot 2015–2018 — technical service bulletin
Bulletin TSA-18-01 · NHTSA communication 10178803 · issued Feb 1, 2018
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2015–2018
model years
4
vehicle entries
Official summary
Polaris has identified a quality issue affecting a small number of Slingshot mufflers, where insufficient penetration of muffler plug welds weakens the muffler wall, making it susceptible to fatigue failure. The first mode of failure is a loosening of the wall, distinguishable by a rattle during normal engine operation. If left unrepaired for an extended period of time, a hole may form in the muffler wall resulting in noticeably higher noise levels.
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.