Chevrolet 2006 Aveo Owner's Manual page 99

AUTOMATIC OVERDRIVE (D4): This position is for
normal driving.
When operating your vehicle in severe cold conditions,
the transmission may be prevented from shifting into
D4 gear until the transmission fluid has warmed up to it's
operational temperature.
Notice: Driving your vehicle if you notice that it is
moving slowly or not shifting gears as you
increase speed may damage the transaxle. Have
your vehicle serviced right away. You can drive in
SECOND (2) when you are driving less than 35 mph
(55 km/h) and AUTOMATIC OVERDRIVE (D4) for
higher speeds until then.
SECOND (2): This position gives you more power but
lower fuel economy. You can use SECOND (2) on
hills. It can help control your speed as you go down
steep mountain roads, but then you would also want to
use your brakes off and on.
Notice: Do not drive in SECOND (2) at speeds over
65 mph (105 km/h), or you can damage the
transaxle. Use AUTOMATIC OVERDRIVE (D4) as
much as possible. Do not shift into SECOND (2)
unless you are going slower than 65 mph (105 km/h)
or you can damage your engine.
FIRST (1): This position gives you even more power
but lower fuel economy than SECOND (2). You can use
it on very steep hills, or in deep snow or mud. If the
shift lever is put in FIRST (1), the transaxle will not shift
into first gear 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 transaxle. If you are stuck,
do not spin the tires. When stopping on a hill,
use the brakes, or parking brake to hold the vehicle
in place.
If there is a malfunction with the automatic transaxle,
the malfunction indicator lamp (MIL) or the HOLD
indicator light will turn on or flash. See Malfunction
Indicator Lamp on page 3-34 or Hold Mode Light
on page 3-34.
Have your vehicle fixed as soon as possible.
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