1. Short title This Act may be cited as the Helping Overcome Trauma for Children Alone in Rear Seats Act or the HOT CARS Act of 2017 . 2. Child safety (a) Amendment (1) In general Chapter 323 of title 49, United States Code, is amended by adding after section 32304A the following new section: 32304B. Child safety (a) Rule required Not later than 2 years after the date of enactment of this section, the Secretary shall issue a final rule requiring all new passenger motor vehicles weighing less than 10,000 pounds gross vehicle weight to be equipped with a system for rear seating positions to alert the operator to check rear designated seating positions after the vehicle motor is deactivated by the operator. The means shall include a distinct auditory and visual alert that may be combined with a haptic alert, and shall be activated after the vehicle motor is deactivated by the operator. (b) Phase-In The rule issued pursuant to subsection (a) shall require full compliance with the rule beginning on September 1st of the calendar year that begins 2 years after the date on which the final rule is issued. (c) Definitions In this section: (1) Passenger motor vehicle The term passenger motor vehicle has the meaning given that term in section 32101. (2) Rear designated seating position The term rear designated seating position means any designated seating position that is rearward of the front seat. (3) Secretary The term Secretary means the Secretary of Transportation. . (2) Clerical amendment The analysis for chapter 323 of title 49, United States Code, is amended by striking the item relating to section 32304A and inserting the following new items: 32304A. Consumer tire information and standards. 32304B. Child safety. . (b) Awareness of children in motor vehicles Section 402 of title 23, United States Code, is amended by inserting after subsection (k) the following new subsection: (l) Unattended passengers A State shall use a portion of the amounts received under this section to carry out a program to educate the public