Remote Start Stopped Working on '08 Z71

[EddieC]

Today our oem remote start feature stopped working. There is some noise in the cabin, like a switch or circuit, maybe a bit of buzz, trying for maybe 3 seconds to work but then it stops without running the starter. The parking lights flash once.
I checked the settings on the DIC and the feature is set to "On".

I do have a check ending light on but it is for an O2 sensor.

Any ideas where to start the search?

 

[Fless]

The CEL prevents it from remote starting. Fix the O2 sensor problem.

 

[EddieC]

The CEL prevents it from remote starting. Fix the O2 sensor problem.

Thanks.
Any difference in brands?

 

[Foggy]

What FLESS said.. If you have a check engine light on, the remote start won't work..
You need to fix your issue and clear out the CEL.. Then the remote start will work again