Outside Manual Mirrors - Chevrolet 2009 TrailBlazer Owner's Manual

To adjust for compass variance:
1. Find your current location and variance zone
number on the following zone map.
2. Press and hold O or depending on the mirror,
press COMP until a Z and/or a zone number
displays. The compass is now in zone mode.
3. Keep pressing O until the desired zone number
displays. Release the button. After several seconds
of inactivity, the new zone number locks in and the
compass display returns.
4. Calibrate the compass as previously described.

Outside Manual Mirrors

Adjust the outside rearview mirrors to see a little of the
side of your vehicle, and the area beside your vehicle.
Manually fold the mirrors inward to prevent damage
when going through an automatic car wash. To fold, push
the mirror toward the vehicle. Push the mirror outward, to
return to its original position.
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