GMC 2007 Envoy - Manual (Page 228)

There are several conditions that can cause this
message to appear.
• The message may display if the brake system
warning light is on. See Brake System
Warning Light on page 206.
• The message displays if the vehicle is shifted
into 4LO.
The message turns off as soon as the conditions
that caused the message to be displayed are
no longer present.
TIGHTEN FUEL CAP
This message may display and a chime may sound
if the vehicle’s fuel cap is not tightened properly.
Fully reinstall the fuel cap. See Filling the Tank on
page 385. The diagnostic system can determine if
the fuel cap has been left off or improperly installed.
A loose or missing fuel cap allows fuel to evaporate
into the atmosphere. This message remains on until
it is acknowledged and cleared from the DIC display
by pressing any of the DIC buttons or the trip stem.
The DIC message is also cancelled if the ignition is
turned off.
The DIC message and the Service Engine Soon
light may come on again during a second trip if the
fuel cap is still not tightened properly. See
Malfunction Indicator Lamp on page 210 for
more information.
TRACTION CONTROL OFF
This message displays when you momentarily
press the StabiliTrak
® button located on the
transmission shift handle. In this mode, stability
control and the brake-traction control are
functional. Engine speed management will be
modified and the driven wheels can spin more
freely. For more details on this mode, see
StabiliTrak
® System on page 309.
TURN SIGNAL ON
This message displays and a chime sounds if a
turn signal is left on for 3/4 of a mile (1.2 km).
Move the turn signal/multifunction lever to the off
position. Press any of the DIC buttons, or the
trip stem, to acknowledge this message and clear
it from the DIC display.
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