semiatic
AUTOHOLDAUTOHOLD

Auto Hold light

Auto Hold keeps the brakes on after you have stopped, so you can take your foot off the brake pedal in queues and at lights. White or grey: Auto Hold is switched on and ready. Green: the car has stopped and is being held. Amber/yellow: Auto Hold has a fault and is not working.

GreenYellow / amber

Not defined by regulation: a maker convention

What to do

White, grey and green need nothing. Amber/yellow: hold the car with the brake pedal or the parking brake yourself, and have the system checked by a dealer.

Makes differ: what this light means on your car, the other colours it may use for the symbol and what the car wants you to do are set by the manufacturer, so your car's owner's manual is the authority.

Symbol
The words AUTO HOLD
Colour
Green or Yellow / amber
Standard
None — a maker convention, described here from 3 makers: Kia, Hyundai, Volkswagen

Where makes differ

Kia and Hyundai both use white (on), green (holding) and amber or yellow (fault). Volkswagen's lamp is grey when Auto Hold is switched on, and it stays switched on when the drive system is started again. White and grey are not among the four colours this chart sorts by, so the light is filed under green and yellow.

Not defined by regulation: a maker convention

Neither US FMVSS 101 (Tables 1 and 2) nor UN Regulation No. 121 lists this light, so no rule fixes its symbol or its colour. What follows is what the makers cited below say; other makes, and other model years of the same make, may draw it differently.

The parking brake telltale is regulated (FMVSS 101 Table 1, UN R121 item 28); Auto Hold has no tell-tale in either table.

Related lights a regulation does define

Other green maker lights

All green dashboard lights, regulated ones included

Other yellow / amber maker lights

All yellow / amber dashboard lights, regulated ones included

Sources

No regulation defines this light, so it is described from 3 carmakers' own manuals or owner pages, each fetched and checked on the date shown:

Written in our own words; the makers' pages cover their own models only.