FMVSS 102

Standard No. 102; Transmission shift position sequence, starter interlock, and transmission braking effect

Issuing bodyNHTSA
CommitteesUS DOT / National Highway Traffic Safety Administration (NHTSA)
First issued1967
Latest revision2026
Statusactive
Categoryfederal
Topicscontrol_interfaces, mode_awareness
Referencehttps://www.ecfr.gov/current/title-49/subtitle-B/chapter-V/part-571/subpart-B/section-571.102

Scope

Specifies the transmission shift position sequence, a starter interlock, and a braking effect of automatic transmissions, to reduce shifting errors. The standard requires that the transmission shift positions be displayed in view of the driver. The driver-facing element is the standardized shift-position sequence and its required display/identification, which reduce driver mode-selection (gear) errors at the control interface.

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