What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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Doubeleive

Wes
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Perhaps your right, I have never tried the brake pedal right after turning off the key.

I just know that if you get in the vehicle, after it has been sitting for a while and depress the brake pedal the lights won't come on without the key on.
the bcm powers down after 10 minutes just like rap does for the radio, might be less than 10 minutes I haven't timed it I just tried it to see if my alarm would go off by pressing the brake pedal
 

iamdub

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In my 10 years of ownership,I’ve had similar things happen twice. Both times, it was the battery needing replaced. For whatever reason these things don’t give you warning when the battery is going out. It just stops working one day. I’ve had it happen twice in the garage and once at a gas station. No warning at all that the battery was worn out :lol:

This is true.


Battery was replaced this March/April [emoji1745]

New batteries could be faulty. Now, if this one was to replace the previous one due to a sudden, inexplicable death, then you may have a problem that's not the battery's fault.
 

iamdub

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I have no idea what this means "DVOM set for mA at the battery."

Digital Volt/Ohm Meter- A basic tool ANY car and/or homeowner should have.

Most decent entry-level ones can measure milliamps up to 10 amps (A), or 10,000 milliamps (mA). If you decide to investigate, it's easy to walk you through it. You just hook up the meter between the negative battery cable and the negative post on the battery and pull fuses one by one until the mA reading drops. Whatever circuit that fuse supports is where your problem is connected.
 

89Suburban

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In my 10 years of ownership,I’ve had similar things happen twice. Both times, it was the battery needing replaced. For whatever reason these things don’t give you warning when the battery is going out. It just stops working one day. I’ve had it happen twice in the garage and once at a gas station. No warning at all that the battery was worn out :lol:

My experience is usually a sharp, drastic change in the weather temperature usually triggers a failure.
 

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