Have a 2008 Canyon, Crewcab, with the 3.7 I-5, 3.73 and auto tran. I'll be pulling a boat a couple of times a year and live in the south with 90+ temps. I bought a trans temp gauge and went to the GM dealer to get a price on putting this in for me. They won't do it since it is "aftermarket". Sothen I asked about getting the wiring harness (flat 4 wire) for the trailer. They didn't carry those, and they suggested going to a parts store. So I'm 0 for 2 at the dealer. Guess who won't be getting ANY service work from me. I'll go to AMCO and see if they can put in the temp gauge, and I'll have to go with the newer round 7pin/4pin connector for my wiring. So far I'm loving my truck, and it is getting 22-23 mpg in my everyday driving.