Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
What exactly happened? Any lights on or flashing on dash?
What has happened is the vehicle is being limited. The only thing you can do is unplug both of the battery cables for 5 minutes and let the computer system discharge. This will reset the limp mode and put all the data back to default. Once you get there they can run the diagnostics on the scan tool and figure out why it is throwing it into limp mode. Make sure you have it out of overdrive until you get the speed up to what you want to be doing which should be 65 as 75 is the speed limit for the normal traffic and your hauling a trailer I would set it 10 under and try to get this to its destination.