Indiana Code Title 9. Motor Vehicles § 9-32-13-15

Sec. 15. (a) It is an unfair practice for a manufacturer or distributor to fail to compensate a dealer at the dealer's retail rate for the work and services the dealer is required to perform in connection with the dealer's delivery and preparation obligations under any franchise, or fail to compensate a dealer anything less than the dealer's retail rate for labor and parts under the manufacturer's warranty agreements as long as the dealer's retail rate is reasonable.  Judgment of the reasonableness includes consideration of charges for similar repairs by similarly situated repair facilities in Indiana.

(b) This section does not authorize a manufacturer or distributor and its franchisees in Indiana to establish a uniform hourly labor reimbursement rate effective for the entire state.

(c) This section does not apply to manufacturers or distributors of manufactured housing, heavy duty vocational vehicles (as defined in 49 CFR 523.8), or recreational vehicles.