Chevrolet 2008 Corvette Owner's Manual page 93

The Manual Paddle Shift system will not allow either an
up-shift or a down-shift if the vehicle speed is too
fast or too slow, nor will it allow a start from Fourth (4)
or higher gear
If up-shifting does not occur when needed, the vehicle
speed will be limited to protect the engine.
The transmission will also automatically down-shift as
the vehicle slows down and comes to a stop.
When the transmission gear does not respond to a shift
change, the DIC will show an X over the gear display.
If the vehicle has a HUD, and the transmission gear
does not respond to a shift change, then a chime
will sound and the HUD will momentarily show an X
over the gear display.
When a requested shift is
denied due to the speed
restrictions shown, the DIC
will momentarily show
an X over the gear display
and a chime will sound.
Manual Paddle Shift operation is available for use with
Cruise Control, see Cruise Control on page 3-11 for
more information.
The vehicle speeds required for Manual Paddle Shift
up-shifts depend on several vehicle inputs, which
will vary the allowed up-shift speed by a few mph (km/h).
•
Up-shifts to Fourth (4) gear require approximately
22 mph (35 km/h).
•
Up-shifts to Fifth (5) gear require approximately
28 mph (45 km/h).
•
Up-shifts to Sixth (6) gear require approximately
41 mph (65 km/h).
To prevent damage to the powertrain, Manual Paddle
downshifts to a lower gear cannot be done above certain
speeds. The maximum speed allowed for downshifting
of gears one (1) through fourth (4) are:
•
Into Fourth (4) gear over 168 mph (270 km/h)
•
Into Third (3) gear over 124 mph (200 km/h)
•
Into Second (2) gear over 81 mph (130 km/h)
•
Into First (1) gear over 45 mph (72 km/h).
If the driver does not request an upshift as the engine
speed approaches fuel shut off RPM, the engine
speed will be limited to protect the engine. See
Tachometer on page 3-36 for more information.
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