GMC 2010 GMC Sierra, Owner'S Manual, Page: 210 / 660

When the System Does Not Seem To
Work Properly
The rear vision camera system might not work properly
or display a clear image if:
. The RVC is turned off. See “ Turning the Rear
Camera System On or Off ” earlier in this section.
. It is dark.
. The sun or the beam of headlights is shining
directly into the camera lens.
. Ice, snow, mud, or anything else builds up on the
camera lens. Clean the lens, rinse it with water,
and wipe it with a soft cloth.
. The back of the vehicle is in an accident, the
position and mounting angle of the camera can
change or the camera can be affected. Be sure to
have the camera and its position and mounting
angle checked at your dealer.
The rear vision camera system display in the rearview
mirror may turn off or not appear as expected due to
one of the following conditions. If this occurs the left
indicator light on the mirror will flash.
. A slow flash may indicate a loss of video signal,
or no video signal present during the reverse cycle.
. A fast flash may indicate that the display has been
on for the maximum allowable time during a
reverse cycle, or the display has reached an Over
Temperature limit.
The fast flash conditions are used to protect the
video device from high temperature conditions.
Once conditions return to normal the device will
reset and the green indicator will stop flashing.
During any of these fault conditions, the display will be
blank and the indicator will continue to flash as long as
the vehicle is in R (Reverse) or until the conditions
return to normal.
Pressing and holding
z
when the left indicator light is
flashing will turn off the video display along with the left
indicator light.
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