What does the R indicator on the Sinotruk HOWO dashboard mean?

[McAlexandra]

In automotive instrument clusters, a circle with an R indicates wear on the right brake shoe (L for left, R for right). When this light is illuminated with the handbrake engaged, it's normal. However, if the light remains on after releasing the handbrake, it may indicate low brake fluid level - you should immediately stop the vehicle to inspect and replenish it. The dashboard is a device that reflects the working status of various vehicle systems. Common indicators include: fuel level warning light, washer fluid light, electronic throttle light, front/rear fog light indicators, and warning lights. 1) Modern vehicles require voltage regulators specifically designed to stabilize power supply to the instrument cluster, suppressing voltage fluctuations to ensure measurement accuracy. 2) Most instrument readings originate from sensors that alter resistance based on monitored conditions, which are then displayed on the dashboard. 3) The most prominent gauge is the speedometer/odometer combination, showing vehicle speed in km/h. This actually consists of two separate meters: a speed indicator and a mileage counter.