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Cruise control issue

SarahsGMC

By SarahsGMC
in Ask A GM Technician

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SarahsGMC Senior Enthusiast

SarahsGMC

Posted
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Anyone know why my cruise control would just randomly shut off on its own? Seems like every time I hit a bump on the highway, it scares the hell out of me every time... Done it 3 times now in past 2 hours

 

 

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SarahsGMC Senior Enthusiast

SarahsGMC

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Also my windshield sprayers which are built into the wipers aren't spraying at this point I'm seeming they froze but they shouldn't be... I'm going to check the hoser but is there anything else to look for? I can hear the little sprayer motor working just no spray yes it's full

 

 

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MikeNH Senior Enthusiast

MikeNH

Posted
Posted

Probably frozen. And check the security of the brake switch for the cruise control issue.

SarahsGMC Senior Enthusiast

SarahsGMC

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Brake switch as in the little slider on the blinker lever? If so that's where it should be.

 

 

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doverarjim Senior Enthusiast

doverarjim

Posted
Posted

I had that happen on my 99 truck the cruse would kick off from time to time. On one trip it happened about 10 times in an hour. Never could find out what caused it. :jester:

 

 

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cobrajet84 Senior Enthusiast

cobrajet84

Posted
Posted

I know on the GMT 900's the culprit is the brake light switch that is on the brake pedal, not sure if it is a common issue on the 800's. For the 900's its a $25 part and about 10mins worth of time. Make sure to go with the AC delco part as I tried just the oreilly's generic kind and it didn't work twice.

SarahsGMC Senior Enthusiast

SarahsGMC

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I can access the switch rather easy right? What's it look like I'm bored so might as well do it now.

 

 

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MikeNH Senior Enthusiast

MikeNH

Posted
Posted

It's a switch somewhere that will make contact with the arm of the brake pedal under the dash.

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