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Control Cruise Problems

yv1650c

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yv1650c Enthusiast

yv1650c

Posted
Posted

Hi, I have a problem with my control cruise. Some times it doesnt apply, but the light in the steering wheel is turning on. Othe times, it apply, but after the most minimal vibrations inside product of the road, it get off.

What can I check?

 

 

thank you

GPSilverado Enthusiast

GPSilverado

Posted
Posted

I would check the brake light switch adjustment first. I am not sure how the new trucks are designed, but if the brake light switch is too sensitive it could cause the Cruise Control to deactivate on bumps.

Kon Man Enthusiast

Kon Man

Posted
Posted

I seconf the above suggestion. If the pedal bounces up on the brake light switch, it will de-activate the cruise. It should be adjustable, just insrease the gap an 1/8th inch or so.

  • 1 month later...
yv1650c Enthusiast

yv1650c

Posted
  • Author
Posted

Hi everyoune, my control cruise is gone.

It doesn't function anymore. What can I check? is there a fuse? or any other part that can handle it? My truck had problems with a body control module located under the dashboard in the left side.

 

Any suggestion?

redvett Senior Enthusiast

redvett

Posted
Posted

Hi everyoune, my control cruise is gone.

It doesn't function anymore. What can I check? is there a fuse? or any other part that can handle it? My truck had problems with a body control module located under the dashboard in the left side.

 

Any suggestion? Yes if you do not have a FSM get one NOW forget the Chiltons & Haynes they are to generic.

Here is the site for the FSM.

http://www.helminc.com/helm/welcome_select...SD7L1KH85008SFF

lvlagnum Enthusiast

lvlagnum

Posted
Posted

Check your owner's manual book. Cruise control is programmed to NOT work at certain speeds and in unsuitable conditions. You truck's cruise control may not activate at speeds less than that specified in the owner's manual and may disengage automaticaly when driving in unsuitable conditions such as very steep hills, rough roads and slippery road surfaces.

 

If none of those conditions is applicable to you, then the three most common problems may be a blown fuse, a bad electrical connection or the brake light switch may be contacting with the brake pedal lever when it shouldn't. The position of the brake light switch can be adjusted to remedy the problem. Some other GM truck owners have compained about the same types of problems in previous posts.

 

To put it simply, cruise control is not for use in city or low speed driving. If you are driving on roads rough enough to make your vehicle's brake pedal bounce, you probably shouldn't be using cruise contol anyways. If you are driving at higher speeds on fairly smooth roads when this happens, then you may indeed have an electical or mechanical problem.

 

Please let us know what your problem turns out to be.

 

Cheers, lvlagnum :D

yv1650c Enthusiast

yv1650c

Posted
  • Author
Posted

First, I'm not trying to use it at low speeds, and not in a vibration situation anymore. It simply doesn't apply on highway speeds, or any other Normal situation I used to drive under the control cruise mode.

 

I checked, the brake light, and its always turned off, what mean that it isnt in contact when I'm driving (I checked it,with my brother driving the truck and me in the back, various situations, and I saw brake lights only when the brakepedal was applyed). So, I sopuse theres no problem with the brakelight actuator or valve located in the pedal...

 

I'm just thinking about a probable fuse, or what you're saying a bad electrical connection, but, what do I need to check, and WHERE is it located???

redvett Senior Enthusiast

redvett

Posted
Posted

Why dont you take my advice since you not in the USA and buy the FSM and be able to diagnose ALL your problems.

 

First, I'm not trying to use it at low speeds, and not in a vibration situation anymore. It simply doesn't apply on highway speeds, or any other Normal situation I used to drive under the control cruise mode.

 

I checked, the brake light, and its always turned off, what mean that it isnt in contact when I'm driving (I checked it,with my brother driving the truck and me in the back, various situations, and I saw brake lights only when the brakepedal was applyed). So, I sopuse theres no problem with the brakelight actuator or valve located in the pedal...

 

I'm just thinking about a probable fuse, or what you're saying a bad electrical connection, but, what do I need to check, and WHERE is it located???

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