GMC 2003 Sierra - Manual (Page 142)

Ternperature Disptay
The (emperature can be djspFayed by pressing Ihe
TEMP button. Pressing the TEMP button once brieily,
logóle üie tejnperaiure reading on and off. To
alternate the temperature reading between Fahrenheit
and Celsijs, press and hold the TEMP button for
approximately four seconds until (he display blinks “F
and Press and relaaae the TEMP button to
toggle between the Fahrenheit and Celsius readings.
After approxfmateEy four seconds of inactivi^, the display
will stop blinking and display (he last selection made.
Press and release ihe TEMP button to toggle (he
tempera lure display between Fahrenheit or Celsius-
|t an abnormal reading Is dtspiayed^ please consult your
dealer.
EJec tro chromic Mirror Operation
The Time penqd you need to press and hold the TEMP
button to turn the eleclriochromit feature on or off Is
approximately eight seconds. The indicator light to the
right of the TEMP button wilt still turn on or ofi Id
show you when the efectrochromic feature is activated.
Once the mi mor is turned off, it will remain off until it
is turned back on, or unlif the vehicle is restarted.
Compass Operation
Press the COMP button once brielly to turn the compass
on or ofl^
When the ignition and the compass feature are on, the
compass will sfiow (wo character boxes for
approximately (wo saconds. After two seconds, Ihe
mirror wNl display tha compass heading.
When cleaning the mirnof, use a paper towel or similar
material dampened with glass cleaner. Do ngl spray
glass cleaner directly on the mirrof as that may cause
the liquid cleaner to enter the mirror housing.
Compass Calibration
The compass may need calibration if one oi the
following DcCuj3:
• If CAL IS displayed while driving in tho vehicle.
• Alter approximately five seconds, ihe display does
not show a Compass heading {N for hfoiih. for
example], there may be a strong magne-tlc field
Interfering with ihe compass. Such inierference may
be caused by a magnetic antenr^a mounl, magnetic
note pad holder or
a similar magnetic Item.
• The compass does rot display the correct heading
and the compass гопе variance is sel ooirectly.
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