The fine print and the owners manual the points of understanding no one reads.

The maker of the hitch attachment is required to have a weight and limit sticker on it and it is referenced at some u-hauls I've rented from with larger vehicles.

Peculiar the HHR is limited towing anything and the automatic can be towed all wheels down.
Ideal for use as a 1/2 ton flat tow storage trailer behind my G30 Vandura set-up base camp and go exploring in the HHR
To tow or be a tow that is the question...
in either case respect the weight and stopping distance of your ride. Be safe out there.

Ps funny; changed out my bowtie front grill emblem on the Astro for a Ford one that I had changed to "Fore" with a small golf flag. Officer checking on me sleeping one night says the license plate # and vechicle model doesn't match there system? I responded it says fore not ford. A warning to stay out of my way! Good day...