Transmission Messages - GMC 2012 Sierra Denali Owner's Manual

5-46 Instruments and Controls
light will also come on. See Tire
Pressure Light on page 5 27. You
can receive more than one tire
pressure message at a time. To
read the other messages that may
have been sent at the same time,
press the set/reset button or the trip
odometer reset stem. If a tire
pressure message appears on the
DIC, stop as soon as you can. Have
the tire pressures checked and set
to those shown on the Tire Loading
Information label. See Tires on
page 10 47, Vehicle Load Limits on
page 9 16, and Tire Pressure on
page 10 55. The DIC also shows
the tire pressure values. See DIC
Operation and Displays (Using DIC
Buttons) earlier in this section.

Transmission Messages

SERVICE 4 WHEEL DRIVE
If your vehicle has the
all-wheel-drive (AWD) system or the
four-wheel-drive (4WD) system, this
message displays if a problem
occurs with the system. If this
message appears, stop as soon as
possible and turn off the vehicle.
Make sure the key is in LOCK/OFF
for at least one minute and then
restart the vehicle and check for the
message on the DIC display. If the
message is still displayed or
appears again when you begin
driving, the AWD or 4WD system
needs service. See your dealer.
TRANSMISSION HOT IDLE
ENGINE
Notice: Do not drive the vehicle
while the transmission fluid is
overheating and the transmission
temperature warning is displayed
on the instrument panel cluster
and/or DIC, or the transmission
can be damaged. This could lead
to costly repairs that would not
be covered by the warranty.
This message displays along with
four chimes if the transmission fluid
in the vehicle gets hot. Driving with
the transmission fluid temperature
high can cause damage to the
vehicle. Stop the vehicle and let it
idle to allow the transmission to
cool. This message clears and the
chime stops when the fluid
temperature reaches a safe level.