It means that one or more of the gauges is out of the safe zone.
my 1998 doge ram van, all my gauges are not working
You have a failure in the communication system on the van. It will require a scan tool to diagnose.
It reduces the voltage from 12v to 6v because the gauges run on the lower voltage.
If you mean to reset the "Check Engine" light, disconnect the battery for one minute.
gage of temperature go to hot position but is not hot the engine check gages light come on
How do I check my transmission fluid on my 2008 dodge grand caravan ... to service a 2014 Dodge caravan w/c van that doesn't have a dipstick to check fluid
Check your air filter and throttle position sensor
If you mean the brake lights are stuck on, then check the stoplight switch located on the top of the brake pedal.
Check fuses and bulbs first.
Check your underhood sticker.
Check the batteries in the remote with a volt meter.
Either your engine temperature is too high , your oil pressure is too low , or your gas gauge is at or near empty