rearview thermometer

60,160 MILES • V8 • 4WD • AUTOMATIC
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BRMARKWELL
  • MEMBER
  • 2 POSTS
thermometer in my rear view does not work, it reads "OC"
whats the problem? 2002 gmc sierra
Jul 22, 2011 at 4:25 PM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
Open circuit, perhaps. The temp sensor for the outside temp should be behind the grille. See if it is disconnected, or replace the sensor. I am not certain, but does the mirror have a compass as well? Does the compass work? The 'OC' could have something to do with compass calibration. When did the error code appear?
Jul 22, 2011 at 8:23 PM
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BRMARKWELL
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  • 2 POSTS
yes the compass works,this has been happening for quite awhile. the display would read crazy symbols and it would display temps way off, now just OC. i will check for that sensor, thanks
Jul 23, 2011 at 7:36 AM
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