2020 Zero Sr/F problems, complaints & recalls
Most-reported problem areas: Fuel/Propulsion System (1)
Safety recalls (2)
Service Brakes, Hydraulic:foundation Components:disc:rotor 2021-10-13 · campaign 21V795000 · 411 vehicles
Defect: Zero Motorcycles Inc. (Zero) is recalling certain 2020 SR/F motorcycles. The rear rotor bolts were insufficiently tightened.
Risk: The loose bolts may damage the caliper or swingarm, reducing rear braking capability and increasing the risk of a crash.
Fix: Dealers will correctly tighten and replace the rear rotor bolts as necessary, free of charge. Owner notification letters were mailed November 1, 2021. Owners may contact Zero customer service at 1-888-841-8085. Zero's number for this recall is SV-ZMC-020-417.
Exterior Lighting:brake Lights:switch 2020-11-13 · campaign 20V704000 · 659 vehicles
Defect: Zero Motorcycles Inc. (Zero) is recalling certain 2020 SR/F and SR/S motorcycles. The front brake switch can fail from water getting into the switch.
Risk: An inoperable front brake switch will not illuminate the brake light when the rider applies the front brakes. Following vehicles may not realize the motorcycle is braking. Cruise control will not shut off with the application of the front brakes. Both conditions increase the risk of a crash.
Fix: Zero will notify owners, and dealers will the replace the front brake switch, free of charge. The recall began November 30, 2020. Owners may contact Zero customer service at 1-888-841-8085. Zero's number for this recall is SV-ZMC-021-020.
Service bulletins (16)
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.
Unknown Or Other 2026-08-11 · ZMDN082026-01 · Other
we would like to inform you that a new firmware release for the 2020+ cypher iii platform will soon be available. 2020+ sr/f & sr/s + 2022–25 sr + 2023+ dsr/x + 2024+ s, ds & dsr firmware versions mbb v46, bmu v22, bms v28 new features & improvements •the battery state of health (soh) for each ba
Unknown Or Other 2026-06-09 · Cypher III OTA Firmware · Over The Air
cypher iii ota firmware release coming soon the latest firmware release (mbb v45, bmu v21, bms v27) for 2020+ cypher iii motorcycles will be available over the air to customers on june 17. this release includes: bug fixes security improvements general system stability enhancements while customers m
Unknown Or Other 2026-05-13 · ZMDN-052026 · Other
new diagnostic tool tuner is available for 2017 and newer model.s on may 15th, a new firmware will be released for our fst / cypher iii models, primarily focused on improving cybersecurity.
Fuel/Propulsion System 2026-02-02 · ZMDN-022026 · Over The Air
dealer notification announcing new firmware for certain models of zero motorcycles.
Fuel/Propulsion System 2025-10-29 · Dealer News 102925 · Other
dealer notification of release of new firmware for specific motorcycles.
Electrical System:software 2023-10-12 · Firmware Release · Service Bulletin/Repair Instructions
dealer notification of new firmware for motorcycle models.
Showing the 6 most recent of 16 bulletins. Search all of them free at nhtsa.gov.
What owners report
2024-05-08 · Fuel/Propulsion System“my 2020 zero sr/f is bev motorcycle. i purchased it new in july 2020 and by february 2023 the total range on a full battery charge was approximately 25% of the original specifications. where i would get between 100 and 160 miles on a full charge depending on speed in 2020, in february 2023 i was consistently getting 30 miles on a full charge at 55m…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.