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Problem With Cruise Control

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Old 06-10-2011, 01:16 AM
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Default Problem With Cruise Control

my cruise control doesnt work on my NNBS and i real dont want to spend a fortune at the dealership...

I already checked all my fuses and they appear fine...

anybody have any ideas or has had this problem???
Old 06-10-2011, 08:09 AM
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More details will help. Any new mods lately? Been swapping out any brake light bulbs recently?

If its just not activating but the switches on the steering wheel are lighting up you probably need a brake switch. Thats just the most common cause but would be a cheap shot in the dark.
Old 06-10-2011, 10:28 AM
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it has never worked since i got it...i push the button but the light doesnt turn on the dash..ive read that the cruise control has to do something with the brake switch...so im checking that today
Old 06-10-2011, 04:14 PM
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you are pushing the cruise control turn on button before pushing the set speed button, right? figured i'd start with the easiest possible cause first. if you are it probably has something to do with the brake switch like stated earlier.
Old 06-10-2011, 11:14 PM
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Originally Posted by smrr1
you are pushing the cruise control turn on button before pushing the set speed button, right? figured i'd start with the easiest possible cause first. if you are it probably has something to do with the brake switch like stated earlier.
yea i push the cruise button and then i press the set button...is there something in particular to look for in the brake switch?
Old 06-11-2011, 01:28 AM
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Same here never worked since day one
Old 06-12-2011, 09:08 PM
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the brake switch is common for this problem and they are pretty cheap at the dealer i think less then 30$
Old 09-09-2011, 10:52 PM
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Bumping this old thing... Looks like all of you having problems with the brake switch have GMT900s...anybody got a part number on this thing? Mine has been dead for a couple years too, just never got around to fixing it.
Old 09-11-2011, 05:31 PM
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brake light switch failure is common. that will stop your cruise from working because when you step on the brake it disables cruise
Old 09-03-2013, 05:17 PM
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Bringing this back up... found this info on another truck site...

A/C Delco# D1586H, GM# 15861245. All you need is a 10mm wrench and a small screwdriver to pry the clip apart.

I haven't tried this yet but I do know that my turn signals flash at erratic rate and it looks like my right rear tail light had water in it (looks corroded)... the comment above about swaping out brake bulbs has me thinking it may be part of my issue...

EDIT:: Change out a bad rear bulb.... still no workie.... I guess a new module is next....

EDIT AGAIN: Got a module from the dealer ... works now...

Last edited by MCMLXIX; 09-06-2013 at 08:11 PM.
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