GMC Acadia Owners Manual
See also:
Malfunction Indicator Lamp
A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, to produce a cleaner environment. This ligh ...
Capacities and Specifications
Engine Specifications
...
Fuel System Messages
ECO MODE ON
On some models, this message displays when the fuel economy mode has been turned
on by pressing the eco button near the shift lever. See Fuel Economy Mode on page
9‑31 for more ...





