There should be a switch on the shift lever that when pushed will activate the "hold" feature. This action changes the shift pattern of the transmission for towing, going down steep grades, etc. Depending on what gear you have the shifter in when the button is pushed you get the following: When button is pressed while shifter is in "D" the vehicle will shift from 1st-2nd and 2nd to 3rd from a stop but will remain in 3rd gear after that. When button is pressed while shifter is in "L" or "S" the vehicle will remain in that gear and will not shift out. All that said, are you able to push this button (while in any gear - not park or neutral) and make the light go off?