2021 Polaris Slingshot problems, complaints & recalls
Most-reported problem areas: Seat Belts (1) · Engine (1)
Safety recalls (1)
Wheels:lugs/Nuts/Bolts/Studs 2021-08-10 · campaign 21V629000 · 4,744 vehicles
Defect: Polaris, Inc. (Polaris) is recalling certain 2020-2021 Slingshot vehicles. The rear wheel studs may not have been fully pressed into the axle, possibly causing them to come loose.
Risk: Loose rear wheel studs could result in wheel detachment, increasing the risk of a crash.
Fix: Dealers will inspect and as necessary, replace the rear axle/stud assembly, free of charge. Owner notification letters were mailed August 27, 2021. Polaris' number for this recall is T-21-01.
Service bulletins (43)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-26 · SLG-9.25.2026 · Other
this ask polaris article provides information regarding engine valve guide wear inspection and measurement for slingshot vehicles.
Power Train 2026-08-22 · SLG_8.21.2026 · Other
this slingshot help center article provides information regarding how to change the transmission fluid on model year 2020 and newer slingshot with autodrive vehicles.
Electrical System 2026-08-11 · Team Tip 2026-03 · Service Campaign
submitting a debug report immediately after a digital wrench ii incident is strongly recommended. digital wrench ii errors may be caused by vehicle module issues, software or equipment malfunctions, or interruptions during updates and flash procedures. common causes include poor internet connectivit
Engine 2026-06-19 · SLG-6.18.2026 · Other
this ask polaris article provides information to systematically identify the root cause of excessive exhaust smoke by distinguishing between oil consumption, coolant intrusion, and fuel-related conditions.
Engine 2026-06-02 · SLG-6.1.2026 · Other
this ask polaris article provides information about how to perform a leakdown test on polaris slingshot vehicles.
Power Train 2026-02-05 · T-26-02-01 · Other
a new input shaft seal, pn 3610429, has been released for model year 2015-2026 slingshot right angle drives for improved leak resistance. vehicles produced after 11/10/2025 have the updated seal. when installing, this seal requires a lower pinion rolling torque specification. improper pinion rolling
Showing the 6 most recent of 43 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-04-27 · Engine · 20,800 mi · 💥 crash“the contact owns a 2021 polaris slingshot. the contact stated that while driving at approximately 20 mph, the oil, brake, abs, check engine, and traction control warning lights illuminated. the contact stated that the vehicle then accelerated inadvertently and swayed back and forth, and when the brake pedal was depressed, the vehicle did not slow d…”
2022-09-19 · Seat Belts“seat belts drivers and passengers do not adjust, lock where you cannot pull out to buckle the belt,locks while pulling out. also doesnt lock snug against body when buckled. throttle bucks violently when lettling clutch out gentlly causing a stall condition when pulling into traffic.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.