EOS 90D flashing red camera icon on viewfinder

[sutleyar]

I have a flashing red camera icon in the lower left of my 90D viewfinder. One forum said it was a "jitter" alert telling me my shutter speed was too low...at 1/8000 second! It does not show in the live view mode. So why am I getting this flashing red icon with a slash through it? 

[shadowsports]

Greetings,

Are you referring to #9

See page 536 of you user guide.  Its an electronic level indicator.