GMC 2007 Envoy - Manual (Page 227)

SERVICE TIRE MONITOR
This message displays if a part on the Tire
Pressure Monitor (TPM) system is not working
properly. If you drive your vehicle while any of the
four sensors are missing or inoperable, the
warning comes on in about 20 minutes. A sensor
would be missing, for example, if you put
different wheels on your vehicle without
transferring the sensors. If the warning comes on
and stays on, there may be a problem with the
TPM. See your dealer.
STABILITRAK ACTIVE
This message displays anytime the StabiliTrak ®
system activates to maintain vehicle stability.
Any combination of engine speed management,
brake traction control, and stability control displays
this message.
STABILITRAK NOT READY
This message may display if driving conditions
delay StabiliTrak
® system initialization. This
is normal. Once the system initializes, this
message will no longer be displayed on the DIC.
STABILITRAK OFF
This message displays when you press the
StabiliTrak
® button for more than five seconds or
when stability control has been automatically
disabled. The StabiliTrak
® button is located on the
transmission shift handle. To limit wheel spin and
realize the full benefits of the stability enhancement
system, you should normally leave StabiliTrak
® on.
However, you should turn StabiliTrak ® off if your
vehicle gets stuck in sand, mud, ice, or snow and
you want to rock your vehicle to attempt to free it, or
if you are driving in extreme off-road conditions and
require more wheel spin. See If Your Vehicle is
Stuck in Sand, Mud, Ice, or Snow on page 348.
To turn the StabiliTrak
® system back on, press the
StabiliTrak ® button again.
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