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  1. O

    Back up lines not showing

    I installed an after market head unit on my ‘12 Denali. The camera works but, the guide lines do not. In the DIC, I see no way to turn them on. I believe I turned them off with my factory radio still installed and locked that setting in. Is there a way to turn them back on without...
  2. O

    Has anyone done a 50 or 75 NOS?

    Just curious for those times where you want a boost. My 6.2 with 208,000 mi. on the ticker is already quick for the weight. But, just to have another 75 hp on call would be nice.
  3. O

    Got these fancy headlights

    They have LED parking lights in them and they are big. They look good when they on with the headlights. I’d like for them to be on instead of the DRL headlights. How would I reconfigure wiring to keep the LED parking lights on?
  4. O

    Teach my ECM some stuff

    There’s a couple of things I would like my 2012 Denali to do. First, when I turn the key off and get out of my door. I would like the mirrors to fold in automatically and of course fold back out when starting truck. Second, when I push lock on my key fob then start button, I’d like the...
  5. O

    Delay from foot PEDAL

    New to me in great condition 2012 Yukon Xl Denali. I have zero complaints about this vehicle except one bothering issue. After a complete stop and I press accelerator there is a delay, then in the rear end it engages and hits kinda hard going forward. Is this an adjustment I can make with...

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