Trailer Towing; Tire Pressure Monitor; Resetting The Oil Life System - GMC Acadia 2008 Getting To Know Manual

Trailer Towing

The Tow/Haul mode (if equipped) assists
when pulling a heavy trailer by reducing
the frequency of transmission shifts and
improves the control of vehicle speed.
To turn on this feature,
press the (Tow/
Haul) button located on
the center console in
front of the shift lever.
Press it again to turn off the feature.
See Section 4 of your Owner Manual.

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
Pressure) warning light on the instru-
ment panel. The low tire pressure
warning light will remain on until you
correct the tire pressure.
A CHECK TIRE PRESSURE message
may 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, located
on the center pillar below the driver's
door latch, 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 remove the DIC
message by acknowledging it with your
DIC controls. However, at the next
vehicle start-up, the DIC message will
reappear 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
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.
The Oil Life System calculates engine oil
life based on vehicle use and displays
CHANGE OIL SOON in the Driver
(Low Tire
Information Center (DIC) when it's
necessary to change your engine oil and
filter. The Oil Life System should be reset
to 100% only following an oil change.
To reset the Oil Life System (without DIC):
1. Turn on the ignition, with the engine
2. Fully press and release the accelera-
3. Turn off the ignition.
To reset the Oil Life System (with DIC):
1. Turn on the ignition, with the engine
2. Press the
3. Press and hold the
4. Turn off the ignition.
See Section 5 of your Owner Manual.
Note: The Tire Pressure Monitor can alert
you about low tire pressure, but it doesn't
replace normal monthly tire maintenance.

Resetting the Oil Life System

off.
tor pedal slowly three times within five
seconds.
off.
(Vehicle Information)
button until the DIC displays OIL LIFE
REMAINING.
button until 100% is displayed.
23
(Set/Reset)