Chevrolet 2007 TrailBlazer Owner's Manua page 222

You can also reset the TRIP A or TRIP B while
they are displayed by pressing the reset stem on
the cluster. If you press and hold the reset stem or
the select button for more than four seconds, the
display will show the distance traveled since the
last ignition cycle for TRIP A or TRIP B.
Tire Pressures: Press the trip information button
until TIRE PRESSURES appears on the display.
This mode shows the tire pressure in pounds
per square inch (psi) or kilopascals (kPa).
Press the select button to scroll through the
following information:
•
LF TIRE shows the tire pressure for the
front driver's side tire.
•
RF TIRE shows the tire pressure for the
front passenger's side tire.
•
LR TIRE shows the tire pressure for the
rear driver's side tire.
•
RR TIRE shows the tire pressure for the
rear passenger's side tire.
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Timer: The DIC can be used as a timer. Press
the select button while TIMER is displayed to
start the timer. The display will show the amount
of time that has passed since the timer was
last reset, not including time the ignition is off.
Time will continue to be counted as long as
the ignition is on, even if another display is being
shown on the DIC. The timer will record up to
99 hours, 59 minutes and 59 seconds (99:59:59)
after which the display will roll back to zero.
To stop the counting of time, press the select
button briefly while TIMER is displayed.
To reset the timer to zero, press and hold the
select button while TIMER is displayed.
Fuel Information Button
t
(Fuel Information): Press the fuel information
button to scroll through the range, fuel used,
average fuel economy, and the engine oil
life system.