2015 Polaris Slingshot Engine Problems
- Complaints
- 8about this part
- Share
- 22%of 36 total for the year
- Median mileage
- 500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine of the 2015 Polaris Slingshot, 22% of the 36 complaints for this model year. Where a mileage was given, the median is 500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Gas pedal revving by itself between 1-2-3-4 gears when taking foot off the pedal I reported the problem to dealer and they had no recall form Polaris. I called the company and dealer 3-4 times and they had no answer for me. The gas pedal vevvs 500 to 3000rpm when I release the throttle gas pedal .I just went to the dealer for a change of micro clutch switch with no success on may19-2015. Your immediate attention would be appreciated. The Slingshot forum for owners have had many many complaints with no results. …”
NHTSA complaint #10717459, filed 2015-05, 500 miles“From day one ive experienced occasional to frequent engine flares, which is, when I press the clutch all the in while taking my foot off of the throttle, the engine RPM will hang at it's current value and will sometimes increase 500-1000 rpms and remain there for several seconds before reducing on it's own. At times I can go through several shifting events to hours of normal operation without problems but, the flaring has always happened on every ride ive been on. About three weeks ago he re-flashed the ecu which made the engine run smoother but did not fix the flaring issue. …”
NHTSA complaint #10726812, filed 2015-06, 100 miles“The contact owns a 2015 Polaris sling shot (n/a). The contact stated that while driving 10 MPH, the traction control warning light illuminated. The failure recurred multiple times. The vehicle was taken to the dealer, where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 25.”
NHTSA complaint #10678915, filed 2015-01, 25 miles“RPM hang on start and shifting gears on start engine rpm goes to 7000 and hangs there I have to shut it off and restart on shifting the rpms hang at the previous level Example in 1st gear shifting to 2nd Clutch at 2000 rpm stays there clutch out in 2nd maintains 2000 rpms with no increase on gas pedal/worse situation on startup have to shut engine down with the. Key to get it to reset”
NHTSA complaint #11434328, filed 2021-09“The contact owns a 2015 Polaris Slingshot. While driving at any speed, heat emitted from the radiator. While exiting the motorcycle, the contact feet was burned due to the extreme heat all the time. Medical attention was not required. The motorcycle was taken to the dealer where it was diagnosed that an air flow kit needed to be installed. The vehicle was repaired. The manufacturer was notified of the failure and stated that they were unaware. The failure mileage was approximately 5,000. Updated 09/28/16”
NHTSA complaint #10895401, filed 2016-08, 5,000 milesRelated service bulletins
- 11038257Sep 26, 2026This Ask Polaris article provides information regarding engine valve guide wear inspection and measurement for Slingshot vehicles.
- 11034550Jun 19, 2026This Ask Polaris article provides information to systematically identify the root cause of excessive exhaust smoke by distinguishing between oil consumption, coolant intrusion…
- 11034548Jun 2, 2026This Ask Polaris article provides information about how to perform a leakdown test on Polaris Slingshot vehicles.
- 11022502Aug 29, 2025This Slingshot help center article provides information regarding spark plug inspection and replacement on model year 2015-2019 Polaris Slingshot vehicles.
Engine: other model years
Other parts of the 2015 Polaris Slingshot
7 complaintsSuspension
6 complaintsTransmission and drivetrain
6 complaintsBrakes
5 complaintsFuel system
5 complaintsElectrical system
4 complaintsOther or unknown
3 complaintsSteering
3 complaintsSeat belts
2 complaintsBody and structure
2 complaintsWheels
2 complaintsElectronic stability control
1 complaints
← All problems reported for the 2015 Polaris Slingshot
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology