Cal. Veh. Code § 28052
If a manufacturer, distributor, or dealer of a new motor vehicle makes any warranty to the purchaser of, and with respect to, a new motor vehicle which is based on the amount of miles that the motor vehicle is driven, only those miles which the motor vehicle has been driven on and after the date that the motor vehicle has first been sold as new to the purchaser shall be considered for purposes of the warranty.
The mileage indicated upon the odometer of the motor vehicle on the date that the motor vehicle is first sold as new to the purchaser shall, for purposes of the warranty, be the mileage upon which the warranty shall commence.
Nothing in this section shall be construed to relieve any person of any criminal punishment to which he would otherwise be subject under Section 28051.
The provisions of this section shall apply only to motor vehicles which are sold on or after the effective date of this section.
Ca. Veh. Code § 28052