Overdrive Off - Chevrolet Low Cab Forward 6.7L 2022 Owner's Manual

170 Driving and Operating

Overdrive Off

Overdrive
Vehicles equipped with automatic
transmission have two overdrive gears (5th
and 6th). These 2 high speed gears provide
increased road speed, low running noise and
outstanding fuel efficiency.
Take advantage of overdrive whenever
possible.
Use the overdrive during normal driving.
When driving down long downhill roads that
require engine braking, or when driving on
mountain roads or through city centers,
release the overdrive. Doing so will reduce
the number of gear changes making the ride
smoother.
If your vehicle is traveling at a speed
exceeding 109 km/h (68 MPH), it is not
possible to downshift from 6th gear to 5th
gear (exhaust brake on).
If your vehicle is traveling at a speed
exceeding 92 km/h (57 MPH), it is not
possible to downshift from 5th gear to 4th
gear (exhaust brake on).
If your vehicle is traveling at a speed
exceeding 66 km/h (41 MPH), it is not
possible to downshift from 4th gear to 3rd
gear (exhaust brake on).
Overdrive Off Switch
Overdrive Off Indicator Light
Under normal circumstances, press the
overdrive off switch to turn the overdrive
"OFF" (the overdrive off indicator light
comes on).
Press the switch again to release the
overdrive off (the overdrive off indicator
light goes off).