CHEVROLET 2010 HHR - Manual (Page 138)

D (Drive): This position is for normal driving with the
automatic transmission. It provides the best fuel
economy. If you need more power for passing and
you are:
• Going less than about 35 mph (55 km/h), push the
accelerator pedal about halfway down.
• Going about 35 mph (55 km/h), push the accelerator
all the way down.
Downshifting the transmission in slippery road conditions
could result in skidding, see “Skidding” under Loss of
Control on page 5-15.
I (Intermediate): This position is also used for normal
driving. However, it reduces vehicle speed without using
the brakes for slight downgrades where the vehicle
would otherwise accelerate due to steepness of grade.
If constant upshifting or downshifting occurs while
driving up steep hills, this position can be used to
prevent repetitive types of shifts. You might choose
I (Intermediate) instead of D (Drive) when driving
on hilly, winding roads and when towing a trailer, so that
there is less shifting between gears.
PERFORMANCE SHIFTING: If the vehicle has this
feature, it can detect a change in driving patterns while
in the Intermediate position. If you make an aggressive
driving maneuver, the vehicle’s transmission
automatically shifts to the lowest possible gear to
maximize vehicle performance. The vehicle will
automatically return to normal operation when you
return to normal driving patterns.
L (Low): This position reduces vehicle speed more
than I (Intermediate) without actually using the brakes.
You can use it on very steep hills, or in deep snow
or mud. If the shift lever is put in L (Low), the
transmission will not shift into L (Low) until the vehicle
is going slowly enough.
Notice: Spinning the tires or holding the vehicle in
one place on a hill using only the accelerator
pedal may damage the transmission. The repair will
not be covered by the vehicle warranty. If you
are stuck, do not spin the tires. When stopping on a
hill, use the brakes to hold the vehicle in place.
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