StabiliTrak®is an advanced computer-
controlled vehicle stability enhancement
system that automatically uses the func-
tions of the antilock brakes, traction con-
trol and stability control to help you keep
the vehicle continuing in the same direc-
tion that the steering wheel is pointed.
When activated, the system may reduce
engine power to the wheels and apply
braking to individual wheels as neces-
sary to help you maintain directional
control of the vehicle.
When you first start your vehicle and
begin driving, you may hear or feel the
system going through several diagnostic
checks. You may also feel a reduction in
acceleration or hear a noise or vibration
while the system is active. This is normal.
StabiliTrak Button
Parts of the
StabiliTrak
system can
be turned
off at vehicle
speeds below
20 mph. The
system auto-
matically will
turn back on when vehicle speed
exceeds 20 mph. It is recommended to
leave the system on at all times for nor-
mal driving. It may be necessary to turn
off the system if the vehicle is stuck in
sand, mud or snow.
Getting to Know Your GMC Savana/Chevrolet Express16
Tire Pressure Monitor
The Tire Pressure Monitor alerts you
when a significant reduction in pressure
occurs in one or more of your vehicle’s
tires by illuminating the (Low Tire
Pressure) warning light on the instru-
ment panel cluster. The low tire pressure
warning light will remain on until you
correct the tire pressure. A CHECK TIRE
PRESSURE message may also appear
on the DIC.
Correcting the Tire Pressure
When the low tire pressure warning light
illuminates, you must inflate the tire to
the proper tire pressure (just as you
must refuel the vehicle when the low
fuel warning light illuminates). The Tire
and Loading Information label shows the
correct tire pressure for the tires when
they’re cold. “Cold” means your vehicle
has been sitting for at least three hours
or driven no more than one mile.
You can temporarily clear the DIC
message by acknowledging it with your
DIC controls. However, at the next vehi-
cle start-up, the DIC message will reap-
pear if the tire pressure has not been
corrected.
During cooler conditions, the low tire
pressure warning light may appear when
the vehicle is first started and then turn
PERFORMANCE & MAINTENANCE
StabiliTrak®– Stability Control
System
To disable the system, press and hold
the (StabiliTrak) button, located on
the instrument panel, for more than five
seconds. The StabiliTrak Off message
will be displayed and the StabiliTrak light
will illuminate. Press the button
again to turn the system back on.
See Section 4 of your Owner Manual.
off as you start to drive. This could be
an early indicator that your tire pres-
sures are getting low and the tires need
to be inflated to the proper pressure.
See Section 5 of your Owner Manual.
17
Note: The Tire Pressure Monitor can
alert you about low tire pressure, but it
doesn’t replace normal monthly tire
maintenance.
The Duramax Diesel engine is equipped
with a Diesel Particulate Filter (DPF)
that will filter or trap particulates (solid
particles in the exhaust exhibited as
black smoke) before they can be emit-
ted into the atmosphere. The DPF will
occasionally need to be cleaned of
accumulated solids. During a cleaning,
the exhaust gas temperature is warmed
so that the accumulated particulate mat-
ter in the DPF will be safely converted to
harmless gases. This feature has been
designed to operate automatically, with
limited driver involvement.
For effective DPF cleaning, the vehicle
will need to operate continuously for
approximately 20 minutes and at speeds
greater than 30 mph. If the vehicle is
returned to idle during the cleaning
process, the driver may notice a slightly
different sound or a slightly elevated
engine idle speed. This is normal.
If the vehicle is not being operated in a
manner to allow effective automatic DPF
cleaning, the CLN EXH FILTER warning
lamp will illuminate.
See your Duramax Diesel Engine Owner
Manual for more information.
Diesel Particulate Filter
(if equipped)
Oil Life System
The Oil Life System calculates engine
oil life based on vehicle use and
displays the CHANGE ENGINE OIL
SOON message when it’s necessary to
change your engine oil and filter. This is
based on engine operation and driving
conditions, not mileage. The Oil Life
System should be reset to 100% only
following an oil change.
To reset the Oil Life System:
1. Turn the ignition key to Run with the
engine off.
2. Fully press and release the accelera-
tor pedal slowly three times within
five seconds.
3. Turn the key to Lock.
See Section 5 of your Owner Manual.
