Have you had your alternator or battery checked lately? The vehicle could not be charging enough to handle the electrical load
Which lights?
check fuses
A faulty bulb?
in the fuse panel.drivers side of dash.
cheyenne
Check the bulbs they are double filamented with smaller being for brake lights
when all three of those lights turn on that means that your alternator is bad. i just went threw this same problem with my rodeo
Stock lights? If not, they might be drawing too much current for the relay.
Either the bulbs are burned out or the switch that activates them is not working. Also maybe a bad fuse
remove the 2 screws from the red plastic and gently pry the red cover off.
The Rodeo is made by a Rodeo
announce the rodeo