So randomly today the H3 won't turn over. It cranks but no go. Tried the security relearn but don't think that's the issue because the security light doesn't blink on the instrument panel just stays on and doesn't turn off after more than 15 mins.

I tried resetting the battery and tried my spare key as well.

Any thoughts?

 

The only I did prior to this happening was remove the rear bumper and trailer hitch.