Mazda 3 Sedan 2020 Owner's Manual page 604

Specifications
Identification Numbers
Vehicle Information
Labels
▼ Vehicle Identification Number
The vehicle identification number
legally identifies your vehicle. The
number is on a plate attached to the
cowl panel located on the left corner
of the dashboard. This plate can easily
be seen through the windshield.
▼ Motor Vehicle Safety Standard
Label (U.S.A. and Canada)
9-2
▼ Chassis Number
Open the cover shown in the figure to
check the chassis number.
▼ Vehicle Emission Control
Information Label (U.S.A. and
Canada)
▼ Tire Pressure Label