I believe what you are seeing actually says CAL, not CRL. This was taken from an excerpt from a 2008 owners manual. I'm sure there is more info in your owners manual.
"The self-calibrating feature of the compass eliminates the
need to calibrate the compass for normal conditions.
During a short initial period, the compass may appear
erratic and the CAL symbol will appear (blinking) on the
display. After the vehicle has completed at least one
complete circle under 5 mph (8 km/h) in an area free
from large metal objects, calibration will be complete
when the CAL symbol is extinguished.
After initial calibration, the compass will continue to
automatically update this calibration whenever the vehicle
is in motion."
And found this on some website. Don't have my owners manual handy or I would look to make sure nothing has changed.
NOTE: Do not attempt to calibrate the compass near large metal objects such as other vehicles, large buildings, or bridges; or, near overhead or underground power lines.
1. Start the engine but leave the vehicle in “PARK” .
2. Depress the STEP button for approximately 10 seconds until the “VAR” menu is displayed. The current variance value will also be displayed.
3. Once in the “VAR” menu depress the STEP button for approximately 10 seconds until the “CAL” message is displayed solidly not blinking.
4. To complete the compass calibration, drive the vehicle in one or more complete 360 degree circles under 5 mph (8 km/h) in an area free of large metal objects such as other vehicles, large buildings, or bridges; or, near overhead or underground power lines, until the “CAL” indicator turns off. The compass will now function normally.