[obermd]

The CTD is a 2LT with a Diesel powertrain. There are a few feature comforts in the LTZ that the 2LT doesn't have. The trim levels are

LTZ (2011-2016 Limited)
CTD (2014-2015)
2LT (2011-2016 Limited)
ECO (2011-2016 Limited)
1LT (2011-2016 Limited)
LS (2011-2016 Limited)
L (2016 Limited only)

The L, LS, 1LT, and ECO all have a manual option for their full production periods. The 2LT has a manual option for 2011-2014.