New to me LML - Chevy and GMC Duramax Diesel Forum
11-16 LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

  • 1 Post By 407driver
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post #1 of 3 (permalink) Old 01-22-2020, 09:03 PM Thread Starter
Join Date: Jan 2018
Location: New Jersey
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New to me LML

I recently picked up a 2012 GMC Sierra SLT. I already changed the oil and just ordered the fuel filter and slip on trans filter. I plan on doing a fass lift pump and removing some "things". I have a couple questions that I was wondering if someone could help me out with. I scrolled through all the settings on my dash to update it to what I wanted and I turned elevated idle ON and turned OFF park assist mirrors. From my understanding, the elevated idle was at initial ignition...I have driven it back and forth and will pull in and place it in park and the elevated idle comes back for maybe 30 seconds( didn't really time it ) and then it will go back to normal idle. Is that normal?? I have since turned off elevated idle. Also, when my truck is locked and I hit the unlock from my fob, the driver side mirrors starts moving and then I have to manually put it back to where I want. Is there a fix for that? Any input/advice would be greatly appreciated!

2012 Steel Gray Metallic GMC Sierra SLT Duramax
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post #2 of 3 (permalink) Old 01-22-2020, 10:34 PM
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Join Date: Jun 2016
Posts: 100
Just sell it to me for $15,000 and all of your problems will disappear!

6" Fabtech Lift Kit
20x12 Moto Metal Wheels
35x12.50 Nitto Trail Grapplers
EFI Live - PPEI Kory Willis
Flo~Pro 5" Stainless Exhaust
FASS 150 Lift Pump
Beans Sump
Edge CTS-2
20% Tint
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post #3 of 3 (permalink) Old 01-23-2020, 07:29 AM
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Join Date: Oct 2016
Location: Maurice, LA
Posts: 4,305
Do you have more than one FOB? The truck has two "presets" 1 & 2.

You can program both settings for each one. Do this first, here is how:

The FOBS are just a wireless switch to activate the Mem 1 or 2 that you have programmed.

Then you can program two or more FOBS to activate Mem 1 or 2. The first fob will be Mem 1 and all others will be Mem 2.

This is how to do it. You have to do ALL the FOBS you have at the same time, otherwise those you dont' reprogram will no longer work.

This thread may also be of interest to you:
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2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.
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