It sounds like there is an electrical problem with the Le Sabre. Check all wires from the battery for loose connections. Check the crank shaft sensor to make sure that its working. Run a computer code check to look for bad codes.
Check battery and cables
what would cause a 1994 Buick LeSabre v6 to turn off going down the road.
mass air flow sensor
More than likely the Flasher Relay is bad.
Bulbs or turn signal flasher, maybe even the switch.
This varies with model year.
The trunk
Blown bulb.
Bottom right of steering colum. push in to turn on. pull out to turn off
probably damaged the crank sensor, or the tangs on the harmonic balancer
To turn off the Daytime Running Lights (DRL) on a 1997 Buick LeSabre, locate the DRL fuse in the fuse box and remove it. The fuse box is typically found under the dashboard on the driver's side. Alternatively, you can also turn off the DRL by adjusting the headlight switch to the "off" position when the vehicle is in park. Always consult the owner's manual for specific instructions related to your vehicle.
its the cooling fan for the engine