This morning, both the SES and the EML lights came on my 2004 MC!
From reading threads here, it seems to be related to the throttle, and possible throttle body replacement. But - I do not really know anything about the electronics here.

I will call service first thing Monday morning to be checked and repaired.

My question is: Can I drive it in to the shop or do I need to have it towed?

I can get it to service without getting on the highway, but will I be safe to drive? (about 18 miles).

Any advice or help here (including more information about these warning lights) would be appreciated!

 

Any updates? I was having a similar problem. Replaced my BPV (bypass valve) with the detroit tuned version and problem hasn't recurred. This BPV shouldn't've done anything to fix the problem, but it did. My theory is that in the process of replacing the valve I also cleaned my throttle and ensured that my throttle body was tight against the supercharger.