((a)) ** .—** In this section:

((1)) ** .—** The term “passenger motor vehicle” has the meaning given that term in section 32101.

((2)) ** .—** The term “rear-designated seating position” means designated seating positions that are rearward of the front seat.

((3)) ** .—** The term “Secretary” means the Secretary of Transportation.

((b)) ** .—** 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 to alert the operator to check rear-designated seating positions after the vehicle engine or motor is deactivated by the operator.

((c)) ** .—** The alert required under subsection (b)—

((1)) shall include a distinct auditory and visual alert, which may be combined with a haptic alert; and

((2)) shall be activated when the vehicle motor is deactivated by the operator.

((d)) ** .—** The rule issued pursuant to subsection (b) shall require full compliance with the rule beginning on September 1st of the first calendar year that begins 2 years after the date on which the final rule is issued.