Can someone tell me what "OC" means when it appears in the temperature readout of the thermometer in my rear view mirror? I have an '02 Z66 with 103,000 miles. Yesterday after sitting in the hot sun, I got in and the temp reading in the rear view mirror thermometer read 107 (summer in the ATL), then a couple of minutes later I looked at it again and it said OC. Still does after sitting all night and after the engine was turned off and restarted sev times during normal driving. The compass still works, but the temp readout says OC (O as in Oscar). The Owner's Manual says consult the dealer if any codes appear and OnStar had no listing for this code.? ![Huh ??? ???](https://www.chevyavalanchefanclub.com/cafcna/smilies/huh.gif)
I searched OC, but didn't come up with anything. You guys have always come through in the past. Any help would be appreciated. Thanks.
![Huh ??? ???](https://www.chevyavalanchefanclub.com/cafcna/smilies/huh.gif)
I searched OC, but didn't come up with anything. You guys have always come through in the past. Any help would be appreciated. Thanks.