Triumph Rocket 3 TFC 2020 Owner's Handbook Manual page 18

Parts Identification
Rider View Parts Identification
1. Clutch lever
2. High beam button
3. Daytime running lights (if fitted)
4. Cruise control adjust button
5. Clutch fluid reservoir
6. Multifunction display screen
7. Front brake fluid reservoir
8. Hazard warning lights button
9. Steering lock button
10. Front brake lever
11. Engine start/stop switch
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12. Home button
13. MODE button
14. Joystick button
15. Direction indicator switch
16. Horn button
17. Heated grips switch (if fitted)