It does not have that package, no.
Good to know, mine does not have max trailering either, would love to help with comparisons anyway i can. Im a decent wrencher, but very new to GM trucks so still getting familiar, only had a month. Just took my maiden tow as a first test, about 30 miles, 3500 lbs travel trailer, mostly rolling hills, avg 50 mph, last 10 miles had 5 decent climbs grade wise about 1 minute each so not exactly taxing but seeing as how they were at the end i expected the trans temp to climb a little. During the entire trip my trans temp stayed around 162 F. not much for you to go on, but im planning to get another longer tow in before my first real trip in july to make sure all is up to snuff.