4.3.9. Variable Compression Turbo

Your engine is equipped with a variable compression ratio system called “Variable Compression Turbo”. This system can vary the engine compression ratio continuously.

According to driving conditions, the system applies optimum compression ratio automatically to achieve both high output and high fuel economy efficiency.

This is not a physical gauge. It is a display option in the vehicle information display that can be selected. (See

(1) Compression ratio status display

Displays the status of compression ratio controlled by Variable Compression Turbo. The lowest compression ratio (8:1) and the highest (14:1) are displayed as “Power” and ”Eco” respectively.

(2) Turbo charger boost pressure gauge

Displays the turbo charger boost pressure. The unit for the gauge can be changed in the [Settings] menu. (See

Under some conditions, the compression ratio may not change. This is not a malfunction of the system.

If the Variable Compression Turbo becomes malfunction, the Malfunction Indicator Light (MIL) may come on. For additional information, see