Overview
ISO 6727:2021 - Road vehicles - Motorcycles and mopeds - Symbols for controls, indicators and tell‑tales - is the third edition (2021) international standard that defines the graphical symbols and optical tell‑tale colours used on motorcycle and moped instrument panels and in the rider’s immediate vicinity. The standard aims to ensure consistent, legible, language‑independent identification of controls, indicators and warning lights so riders can recognize functions quickly and safely.
Key topics and technical requirements
- Scope and applicability: Symbols apply to motorcycles and mopeds (per ISO 3833 definition), excluding steering‑wheel types, and cover controls/indicators fitted on or adjacent to the instrument panel.
- Symbol set and annex structure: Comprehensive symbol tables and artwork are provided in Annexes A–O covering domains such as lighting & signalling, braking systems, visibility, engine, fuel, transmission, handling/cruise control, active/passive safety, electric functions, information & communication, security and miscellaneous functions.
- Colour coding for tell‑tales:
- Red - danger or imminent serious damage
- Amber (yellow) - caution or malfunction likely to produce hazard over time
- Green - normal/safe condition (except where blue/amber explicitly required)
- Blue - specific uses (e.g., high beam)
- White - where none of the above applies
- Design & legibility guidance: Rules on sizing, line thickness, outline vs solid rendering, orientation (vehicle shown right‑to‑left), and permitted minor deviations to maintain perceptibility and consistency. Designers are encouraged to consult IEC/ISO graphic‑symbol guidance (IEC/ISO 80416 series).
- Failure indication: Malfunction can be shown by colour coding and/or combining a base symbol with a failure element.
Practical applications and users
ISO 6727:2021 is used by:
- Motorcycle and moped manufacturers - for instrument cluster design, consistent user interfaces and regulatory compliance.
- UX/UI and control designers - to create legible, standardized icons for riders.
- Tier‑1 suppliers (instrument panels, lighting, ECUs) - to ensure component compatibility and correct tell‑tale behaviour.
- Aftermarket instrument and retrofit device makers - to match OEM symbol conventions.
- Regulators, type approval bodies and testing labs - to assess conformity and safety communications.
Practical benefits include improved rider safety, reduced localization needs (symbols are language‑independent), and interoperability across markets.
Related standards
- ISO 3833 (vehicle classification/definitions)
- ISO 2575 (graphical symbol terminology)
- IEC/ISO 80416 series (legibility and presentation of graphical symbols)
- ISO 7000 / IEC 60417 (databases of registered equipment symbols)
- ISO 4129 (integrated content from previous editions)
Keywords: ISO 6727:2021, motorcycle symbols, moped controls, tell‑tales, instrument panel symbols, symbol colours, motorcycle UI, vehicle standard.
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