Mercury 2009 Grand Marquis Owner's Manual page 177

Overdrive can be deactivated by
pressing the transmission control
switch on the gearshift lever.
The transmission control indicator
light (TCIL) will illuminate on the
instrument cluster.
Drive (not shown)
Drive is activated when the transmission control switch is pressed.
• This position allows for all forward gears except overdrive.
• O/D OFF lamp is illuminated.
• Provides engine braking.
• Use when driving conditions cause excessive shifting from O/D to
other gears. Examples: heavy city traffic where continuous shifting in
and out of overdrive occurs, hilly terrain, heavy loads, trailer towing
and when engine braking is required.
• To return to O/D (overdrive mode), press the transmission control
switch. The O/D OFF lamp will not be illuminated.
• O/D (Overdrive) is automatically returned each time the key is turned
off.
2 (Second)
This position allows for second gear only.
• Provides engine braking.
• Use to start-up on slippery roads.
• To return to
(Overdrive), move the gearshift lever into the
(Overdrive) position.
• Selecting 2 (Second) at higher speeds will cause the transmission to
downshift to second gear at the appropriate vehicle speed.
1 (First)
• Provides maximum engine braking.
• Allows upshifts by moving gearshift lever.
• Will not downshift into 1 (First) at high speeds; allows for 1 (First)
when vehicle reaches slower speeds.
2009 Grand Marquis (grn)
Owners Guide, 1st Printing
USA (fus)
Driving
O/D
OFF
177