I just purchased a 2012 Chevy 2500 and trying to locate the engine heater you plug into a 120 house outlet. The temp is supposed to be close to zero next week. The manual says it is located on the passenger side near the aux battery. I haven't located anything thus far that resembles a cord to "unwind'. I doubt the previous owner needed it in these parts. There is a wire/hose? doubled up next to the DEF filler cap but not sure enough to attempt to pull it out! Thanks,

navybanker wrote:I just purchased a 2012 Chevy 2500 and trying to locate the engine heater you plug into a 120 house outlet. The temp is supposed to be close to zero next week. The manual says it is located on the passenger side near the aux battery. I haven't located anything thus far that resembles a cord to "unwind'. I doubt the previous owner needed it in these parts. There is a wire/hose? doubled up next to the DEF filler cap but not sure enough to attempt to pull it out! Thanks,Just to put your mind at ease...My 2006 Gold Standard DuraMax has never been plugged in...This morning, sitting outside in the driveway in -3F temperature, it fired right up...Regards

It could been all folded up on the side of the battery

you live in west Tennessee? I wouldn't plug it in

Its on the passenger side, just keep looking. Also as stated above its not neccasary but does help with quicker warmup. I have a 2011 and have started mine at 20 below without plugging in.

I used the preheat plug on my '04 traveling in Colorado and Nebraska some years back. But I never used it in Tennessee. Just thought this might be good insurance since the high one day next week is forecast to be seven. It should be easy to spot but not so far. Maybe this truck was built in Mexico!

2012 Duramax Engine Heater | Good Sam Community

26 Replies

MARKW8
Explorer
Jan 03, 2014
The heater in your Duramax will not work above 0 degrees.

Mark
navybanker
Explorer
Jan 03, 2014
I used the preheat plug on my '04 traveling in Colorado and Nebraska some years back. But I never used it in Tennessee. Just thought this might be good insurance since the high one day next week is forecast to be seven. It should be easy to spot but not so far. Maybe this truck was built in Mexico!
nevadanick
Explorer
Jan 03, 2014
Its on the passenger side, just keep looking. Also as stated above its not neccasary but does help with quicker warmup. I have a 2011 and have started mine at 20 below without plugging in.
gmcsmoke
Explorer
Jan 03, 2014
you live in west Tennessee? I wouldn't plug it in
yrusoslo
Explorer
Jan 03, 2014
It could been all folded up on the side of the battery
ricatic
Explorer
Jan 03, 2014
navybanker wrote:
I just purchased a 2012 Chevy 2500 and trying to locate the engine heater you plug into a 120 house outlet. The temp is supposed to be close to zero next week. The manual says it is located on the passenger side near the aux battery. I haven't located anything thus far that resembles a cord to "unwind'. I doubt the previous owner needed it in these parts. There is a wire/hose? doubled up next to the DEF filler cap but not sure enough to attempt to pull it out!
Thanks,

Just to put your mind at ease...My 2006 Gold Standard DuraMax has never been plugged in...This morning, sitting outside in the driveway in -3F temperature, it fired right up...

Regards

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2012 Duramax Engine Heater

26 Replies

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