Indiana Code Title 9. Motor Vehicles § 9-21-13-1

Sec. 1. (a) A vehicle with lighted headlights in a funeral procession has the right-of-way at an intersection and may proceed through the intersection if the procession is headed by a lead or funeral escort vehicle displaying alternately flashing red and white, flashing red, or flashing amber lights or an authorized emergency vehicle, except if either of the following conditions exist:

(b) Before assuming the right-of-way, a person who drives a vehicle in the funeral procession must exercise due caution with regard to crossing traffic.