Driver Efficiency Gauge (Hybrid)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The IPC displays the driver efficiency as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the fuel efficiency of the vehicle. There are several zones on the gauge indicating different levels of efficiency. The gauge shall indicate fuel efficiency when the engine is running and will be set at the minimum scale position when the ignition transitions to a mode other than when the engine is running. The gauge will default to its half scale position when there is a loss of serial data communication with the ECM

The driver efficiency gauge gives feedback to the driver of the hybrid vehicle as to how efficient they are driving. When driving in a way to optimize the fuel economy (e.g. gradually increasing the speed, slow braking, etc.), the pointer or indicator moves into a high efficiency band. When driving in an inefficient manner (e.g.starts, hard braking, constantly changing speeds, etc.), the pointer or indicator moves into a less efficient band. The gauge spans several zones, corresponding to different levels of efficiency for acceleration and deceleration. As the indicator moves across the band, the driver receives directional feedback as to whether their driving style is moving towards or away from the desired efficiency.