Buick Regal: Diagnostic Information and Procedures

 Exterior Lighting Systems Description and Operation

Exterior Lamps The exterior lighting system consist of the following lamps: Adaptive forward lighting Automatic headlamp leveling Automatic high beam assist Backup lamps Daytime running lamps Exterior courtesy lamps Front fog lamps Hazard warning lamps Headlamps Park, tail, license and ma

 Checking Coolant

The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above