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Press the (+)/(–) buttons on the gearshift lever to manually make shifts:
• Press (+) on the gearshift lever
button to manually upshift the
transmission.
• Press (–) on the gearshift lever
button to manually downshift the
transmission.
When manual control is no longer desired, return the transmission to the
D (Drive) position.
The transmission will operate in gears one through six.
Recommended shift speeds:
Upshifts when accelerating
Shift from:
1 – 2 15 mph (24 km/h)
2 – 3 25 mph (40 km/h)
3 – 4 40 mph (64 km/h)
4 – 5 45 mph (72 km/h)
5 – 6 50 mph (80 km/h)
In order to prevent the engine from running at too low an RPM, which
may cause it to stall, the SST will still automatically make some
downshifts if it has determined that you have not downshifted in time.
Although the SST will make some downshifts for you, it will still allow
you to downshift at any time as long as the SST determines that the
engine will not be damaged from over-revving.
The SST will not automatically upshift, even if the engine is approaching
the RPM limit. It must be shifted manually by pressing the + button.
Engine damage may occur if excessive engine revving is held without
shifting.
T
/H
T
/H
P
R
N
D
M
2
1
+
-
+
-
Transmission 175
2015 Navigator (nav)
Owners Guide gf, 1st Printing, July 2014
USA (fus)
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