CTS stopped working while driving! Now engine locked? Why? How?

Engine could of had internal parts failure locking it up. When the engine stopped running it resulted in the error messages on the dash. Pull the oil dipstick out and look at the oil, that may tell you something. How many miles on this Cadillac?

oil change less than month ago. battery less than 3 months old. 100G miles. Dealership now saying the belt on the alternator was locked. And locked the entire engine down. Not sure if this is the answer either.

This happened to me. The car completely shut down while driving. Luckily, I was near the entrance to a parking lot. We charged the battery and it started, but I took it straight to the dealership regardless. I was asked, "when's the last time you had your oil changed?". I pulled out a receipt showing that it had been relatively recent (about a month - 900 miles). I had no warning lights. I was told it was BONE DRY. They put oil in, warned that if I hadn't taken a trip planned for that afternoon, my car would have been history. It hasn't happened since.

You were lied to. The alternator failed your battery failed and you’re lucky to be alive. This should never happen and we should’ve all been warned it was a possibility.

I have a 05 cts my car turn off on me at a red light n wouldn’t come back on until I jump it do you think it’s my Alternator

It's your Altenator just had this problem with your symptoms n it was my alternator

2008 CTS cut off at stop sign. Wont re-start. Could a failed CAm or Crank sensor shut down the ECU?