Does what it claims almost all the time.
Reviewed By Patrick F (GRAND RAPIDS, MI) —5/24/2015 6:18 PM
This product does not work consistantly. You have to stop, turn the vehical off, unplug it and plug it ba k in, then start your vehical agian. When it works, it very nice, it just doesn't work all the time.
Waste of mo ey
Reviewed By Jason G (Easley, SC) Reviewed for a 2013 Toyota Tundra —5/23/2015 3:42 AM
Install took hours!! On the phone with tect support due to codes that continued to show up. Once installed couldn't tell a big difference. No increase whatsoever in fuel mileage. It still doesn't communicate like it should. It freezes up a lot. It was a big waste of money for me. Not made for the tundra.