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Old 05-24-2021, 12:24 PM   #1
martyhouk
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Electrical troubleshooting

Recently got a 2011 Sierra. The cruise control and the steering wheel radio controls don't work, so I suspect a problem that affects both. Fuses are all OK. Any advice on where to start looking? Thanks...
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Old 05-24-2021, 06:26 PM   #2
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Re: Electrical troubleshooting

Could be a clock spring issue. Is the airbag light on?
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Old 05-27-2021, 07:09 AM   #3
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Re: Electrical troubleshooting

Quote:
Originally Posted by Stealthee View Post
Could be a clock spring issue. Is the airbag light on?
No, airbag light initializes normally at startup, then goes out...
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Old 05-27-2021, 09:03 AM   #4
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Re: Electrical troubleshooting

marty, even though airbag light not on, Stealthee might still be partially right;
since you mention you recently got the rig, does it have decal for the 07-14 GM
airbag recall? if so, previous owner could have taken care of that and tech when
they swapped takata, they disconnected steering lead wire for vol/etc, and said
oh well, i flagged hour for one airbag pull and it works..
might look into it; or might just be fuse..
i believe '11 GMC has inside fuse box under dash/behind steering wheel
(cover is removed by screwdriver, can't remember regular or jeweler's size)
cover has code numbers that correspond to radio controls, cruise, etc.
hope this helps..
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Old 05-27-2021, 09:07 AM   #5
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Re: Electrical troubleshooting

I don't find evidence the airbag was replaced, but on the NHTSA site it does not show as an outstanding recall. So I'm guessing it's been replaced. And I also suspect something was left unplugged at that time. So there's my project for next weekend...
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