Global Machinery Company Sierra 1999 - Manual (Page 99)

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Shift Light
If you have a manual
transmission, you may have
a SHIFT light. This light
will show you when to shift
to the next higher gear for
best fuel economy.
When this light comes on, you can shift to the next
higher gear if weather, road and traffic conditions allow.
For the best fuel economy, accelerate slowly and shift
when the light comes on.
While you accelerate, it is normal for the light to go
on and off if you quickly change the position of
the accelerator.
If your vehicle has four - wheel drive and is equipped
with a manual transmission, disregard the SHIFT light
when the transfer case is in 4
- Wheel Low.
Ignore the SHIFT light when you downshift.
Four - Wheel Drive (If Equipped)
If your vehicle has four - wheel drive, you can send your
engine’s driving power to all four wheels for extra
traction. To get the most satisfaction out of four
- wheel
drive, you must be familiar with its operation. Read the
part that follows before using four
- wheel drive. See the
appropriate text for the transfer case in your vehicle.
NOTICE:
Driving in the 4 - WHEEL HIGH (4H) or
4 - WHEEL LOW (4L) positions for a long time
on dry or wet pavement could shorten the life of
your vehicle’s drivetrain.
Front Axle Locking Feature
The front axle locks and unlocks automatically when
you shift the transfer case. Some delay for the axle to
lock or unlock is normal.