"warning lamp" is correct and usable in written English.
You can use it when referring to a lamp that warns of a potential danger or hazard. For example: "The warning lamp on the dashboard lit up to alert the driver that there was a problem with the car."
My warning lamp goes out.
This could damage the temperature sensor, preventing the fluid-level warning lamp from lighting.
In T.S.B. 10-01-048 issueDec. Dec. 1, Hyundai said the calipers might have been improperly machined, resulting in a loss of brake fluid and illumination of the brake fluid warning lamp.
In T.S.B. 961235 issued on May 29, Audi said a failure of the system in some 2012 and 2013 models was caused by a short circuit in the warning lamp in the exterior mirror.
The black box in Worsham's vehicle recorded speed and braking data, the car's change in velocity, steering input, yaw rate, angular rate, safety belt status, system voltage, and airbag warning lamp information.
Chrysler did not bother to fit the supposedly upmarket model with such features as power windows, central locking, ( though a then-unusual fitment was a low fuel warning lamp which would come on when a couple of gallons of fuel was left in the tank ), even though they were all available in the smaller Simca 1307, launched around the time when the 180 was in mid-life.
Reverse thrust warning lamps, which would have warned the crew if the propellers were reversed, were not fitted on Mainliner Idaho.
There are no alarm bells or warning lamps to alert the driver when the Vector Drive differential is at work.
His Last Supper series was based on 13 warning lamps found on various building sites, which he adorned with a single figure from da Vinci's original painting, while discarded ironing boards became sculptures inscribed with the first three pages of the Book of Genesis from the Bible.
(b) Instructions for each warning device shall include a recommendation that the driver activate the vehicular hazard warning signal lamps before leaving the vehicle to erect the warning device.
One of the most left-field moments of his bid saw his supporters placing stickers on lamp posts warning heroin dealers they risked getting "smacked" if they tried to trade in the city.
