The 2020 Zero SR/F has 3 recalls, all brake-related: loose rear rotor bolts can damage the caliper or swingarm and reduce stopping power, while a water-prone front brake switch can fail to light the brake lamp when the rider squeezes the front lever.
The rear rotor bolt issue means the fasteners can work loose over time and contact the swingarm or caliper bracket, producing an abnormal noise and progressively weakening rear braking. In a hard stop, reduced rear braking force translates to a longer stopping distance and a greater chance of a crash. Earlier repair attempts did not fully resolve the issue, which is why this defect appears across more than one filing. The front brake switch concern is separate: water intrusion into the switch causes it to stop signaling the brake light, so a rider applying the front brakes may show no brake light at all to traffic behind them, leaving following drivers with no visual warning that the motorcycle is slowing.
At a glance
What can fail
Rear brake rotor bolts may not be tight enough and can loosen over time. A loose bolt could contact the swingarm or brake caliper bracket, reducing braking power. You might hear abnormal noise.
What the fix does
Your dealer will inspect the rear brake rotor bolts, re-tighten them, and replace any that are damaged.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolts securing the rear rotor were not tightened enough during manufacturing.
What the fix does
Dealers will tighten the rear rotor bolts correctly and replace them if needed, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Water can enter the front brake switch, causing it to fail.
What the fix does
Dealers will replace the front brake switch at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
