Duramax Lifetime Supporter
Join Date: Oct 2009
Another feature that I ran across last night with the 2020 HDs is that the trucks have a built in cool down feature.
Once you pull off the highway and if the engine/turbo is beyond a certain temp, you simply turn off the ignition switch, get out the truck the engine will continue to run as you lock the truck and walk away. The engine will continue to idle and cool down. Once the temps are in the proper range, the engine shuts off automatically with no input from the driver.
I certainly hope that GM got this right as I can see where the electronics associated with the cool down could potentially make this feature a PIA. But if it works properly a great feature IMHO.
09 GMC SLT Dually
Steel Gray Metallic
All options except sunroof
Mods so far:
Alcoa 19.5s with Michelin XZE, Centramatics,Tow Mirrors, Chrome Grill Overlay, Rear underseat storage, Mudflaps all corners, 20% Window tint, 6" Oval Steps, B&W Turnover Hitch, B&W Companion Hitch, Sulastics, GM Campaign #PIT3009J, Wireless Console Charging, Bilstein 5100s, Raptor 3602RL
DF DRW Club Member #161