Haw. Rev. Stat. § 481R-12: Prohibited acts.

(a) A warrantor or a warrantor's representative, in the warrantor's vehicle protection product warranty or in an advertisement or literature for the warranty, may not:

(1) Make, permit, or cause to be made any false or misleading statement; or

(2) Deliberately omit a material statement that would be considered misleading if omitted.

(b) A warrantor may not require, as a condition of sale or financing, that a retail purchaser of a motor vehicle purchase a vehicle protection product that is not installed on the motor vehicle at the time of sale.