Originally Posted by Andrew Klossner
Doing that disables the higher overdrive gear. From the owner's manual:
"When in the DRIVE position in fifth gear, the first tap to the left (-) will downshift the transmission and display 5 (ERS 5 is the same as normal fourth gear). Another tap to the left (-) will shift the transmission down to ERS 4 (direct gear)."
On my 2012, you can manually shift through the whole range, so it doesn't disable any gears.
Regarding Eco mode, from the 2011 Owner's Manual
, pg 273:
"The FUEL SAVER MODE message will display above the average fuel economy in the EVIC display. This message will appear whenever MDS (if equipped) allows the engine to operate on four cylinders, or if you are driving in a fuel efficient manner
Does this mean that it is linked to MDS on the 5.7, and just linked to fuel economy on the 3.6?
Shifting into specific gears disables the light, but may or may not disable MDS; nothing in the manual suggests that it is ever turned off.