Press the master door lock switch in as shown to lock or unlock all doors.
Using the Master Door Lock Switch
When you lock/unlock either of the front doors using the master lock switch, all the other doors lock/ unlock at the same time.
Honda Civic Owners Manual. Temperature
The temperature grades are A (the highest), B, and C,
representing the tire's resistance to the generation of heat and its
ability to dissipate heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire ...