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STABILITY SYS DISABLED
The STABILITY SYS DISABLED message will turn on
when you press the StabiliTrak
®
button or when the
stability control has been automatically disabled. 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 You Are Stuck: In Sand, Mud, Ice
or Snow on page 4-49. To turn the StabiliTrak
®
system
back on, press the StabiliTrak
®
button again.
There are several conditions that can cause this
message to appear.
• One condition is overheating, which could occur if
StabiliTrak
®
activates continuously for an extended
period of time.
• The message will also be displayed if the brake
system warning light is on. See Brake System
Warning Light on page 3-41.
• The message could be displayed if the stability
system takes longer than usual to complete its
diagnostic checks due to driving conditions.
• If an engine or vehicle related problem has been
detected and the vehicle needs service, the
message will appear. See your GM dealer.
• The message will also appear if the vehicle is
shifted into 4LO.
The message will turn off as soon as the conditions that
caused the message to be displayed are no longer
present.
TIGHTEN FUEL CAP
If the vehicle’s fuel cap is not tightened properly, this
message may appear along with the check engine light
on the instrument panel. Reinstall the fuel cap,
making sure to fully install the cap. See Filling Your
Tank on page 5-8. The diagnostic system can determine
if the fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to evaporate
into the atmosphere. A few driving trips with the cap
properly installed should turn the light and message off.
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