Canon EOS-1DX Instruction Manual page 399

Caution Messages
The camera checks its important components to see if they are
operating properly. If it detects an operation that is inaccurate but not
serious enough to be an error, it will be recorded as a Caution message
in the Camera status log. Although you can continue shooting, you
should follow the recommendations in the Caution message and
solution since the condition may lead to a malfunction.
Caution
No.
Shutter speed repeatedly
adjusted automatically.
You may continue
01 shooting but contacting a
service center is
recommended.
A sudden drop in battery
performance was
detected.
If this happens again after
02 battery replacement,
contact a service center.
Retry operation was
performed for the shutter
charge mechanism.
03
If this happens repeatedly,
contacting a service
center is recommended.
4
Check the system status.
Message
3 System Status Display
Turn the <5> dial to select an Error
or Caution, then press the <B>
button to view the message.
Turn the <5> dial to check the
message.
Description and Solution
If the camera detects an error in the shutter
speed, it will make adjustments to maintain
shutter speed precision. If this adjustment is
made repeatedly, this Caution message will
appear.
You can continue shooting, but consulting a
Canon Service Center is recommended.
While the camera is turned off, if the battery
pack's remaining capacity decreases
abnormally within a certain period, this
Caution message will appear.
If the same Caution message appears
repeatedly even after changing to a different,
fully-charged Battery Pack LP-E4N or LP-
E4, there may be a problem with the camera.
Consult your nearest Canon Service Center.
The shutter- and mirror-cocking operation
was not completed normally. If this occurs
again, this Caution message will appear.
You can continue shooting, but if the same
message appears again, you should
consult your nearest Canon Service Center.
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