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)

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

Engine Number

Specifications
SpecificationsMazda 6 Owners Manual: Intermittent concern troubleshooting
Vibration Method
1. If malfunction occurs or becomes worse while driving on a rough road or
when engine is vibrating, perform the steps below.
Note
There are several reasons vehicle or engine vibration could cause
an electrical malfunction. Some of the things to check for are:
...
Mazda 6 Owners Manual: No.4 air intake mode does not change
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while performing the inspection to discover
whether poor contact points are the cause of any intermittent malfunctions.
If there is a problem, check to make sure connectors, terminal ...