Lost Cruise Control Set Button

[Jhwhite05]

Hey everyone.
2009 Yukon Xl, 5.3 4WD.

Today I pushed my cruise control “set button” only to discover it stopped working.

I’d really appreciate your advice for fixing it! We do a lot of long road trips, and cruise control is a game changer for us.

What do you think is going on?

 

[tooleyondeck]

do you have aftermarket tail lights?

 

[Jhwhite05]

do you have aftermarket tail lights?

No.
Interesting connection, though. What was your thought?

 

[tooleyondeck]

No.
Interesting connection, though. What was your thought?

It is a known issue that LED tail lights will disable your cruise on certain models, I'm not sure if the 900s were affected by this. The system checks for resistance at the tail lights and with LEDs having much lower pull, the system thinks your brake lights are out and therefore won't engage cruise. The fix is typically resistors at both brake lights.

In your case I would start with the fuse, then check your steering wheel switch and brake light switch. Here is a video regarding the brake light switch issue:

 

[Jhwhite05]

It is a known issue that LED tail lights will disable your cruise on certain models, I'm not sure if the 900s were affected by this. The system checks for resistance at the tail lights and with LEDs having much lower pull, the system thinks your brake lights are out and therefore won't engage cruise. The fix is typically resistors at both brake lights.

In your case I would start with the fuse, then check your steering wheel switch and brake light switch. Here is a video regarding the brake light switch issue:

That’s really helpful. Thank you. I’ll check that!

 

[Geotrash]

Hey everyone.
2009 Yukon Xl, 5.3 4WD.

Today I pushed my cruise control “set button” only to discover it stopped working.

I’d really appreciate your advice for fixing it! We do a lot of long road trips, and cruise control is a game changer for us.

What do you think is going on?

Super common to have the brake pedal switch fail on these also. Try pressing the pedal lightly while driving with no one behind you, and letting it slam back to the top of its travel as your foot slips off. Then try engaging the cruise. If it works, it's your brake pedal switch for sure.

 

[OR VietVet]

Yep, they beat me to it. Check the connection at the brake light switch and of course the fuses.

More Information for GM GENUINE D1539J

 

[Joseph Garcia]

The issue is not the the LEDs on a 900. I've got LEDs with no resistors, and my cruise control works fine.

As stated above, check the brake light switch next.

 

[Jhwhite05]

Super common to have the brake pedal switch fail on these also. Try pressing the pedal lightly while driving with no one behind you, and letting it slam back to the top of its travel as your foot slips off. Then try engaging the cruise. If it works, it's your brake pedal switch for sure.

Ok! I will try that and report back!

 

[Just Fishing]

 

[Jhwhite05]

Hahahaha! I’m still here. Just got sick and out for the count until this thing passes.

 

[Geotrash]

Hahahaha! I’m still here. Just got sick and out for the count until this thing passes.

Hope you feel better soon! There's definitely some crud going around. My son has been home sick with a 102º fever for the last 2 days.

 

[Jhwhite05]

Hope you feel better soon! There's definitely some crud going around. My son has been home sick with a 102º fever for the last 2 days.

Yeah, totally. My wife got a flu-thing and it lasted 2 weeks! Crazy. I’ve got a lighter version, so I’m planning on bouncing back asap!

 

[Mosska]

Start by checking the fuse related to the cruise control in your vehicle's fuse box. A blown fuse could be a simple and quick fix.
Cruise control systems often disable when the brake lights are malfunctioning or the brake pedal switch is faulty. Check if your brake lights are working when you press the brake pedal. If not, it might be related to the brake switch.

 

[John Ley]

This seems crazy but the last 10 PPV I bought the cruise would not work on the way home. Went to my buddies shop the next day and he asked if I had checked the fluid level in the Master cylinder and I said no what does that matter. We raised the hood and it was low, filled it to proper level and cruise has worked flawlessly ever since. He told me the connection but can't recall it now.

 

[mikeseay]

It is a known issue that LED tail lights will disable your cruise on certain models, I'm not sure if the 900s were affected by this. The system checks for resistance at the tail lights and with LEDs having much lower pull, the system thinks your brake lights are out and therefore won't engage cruise. The fix is typically resistors at both brake lights.

In your case I would start with the fuse, then check your steering wheel switch and brake light switch. Here is a video regarding the brake light switch issue:

It is a known issue that LED tail lights will disable your cruise on certain models, I'm not sure if the 900s were affected by this. The system checks for resistance at the tail lights and with LEDs having much lower pull, the system thinks your brake lights are out and therefore won't engage cruise. The fix is typically resistors at both brake lights.

In your case I would start with the fuse, then check your steering wheel switch and brake light switch. Here is a video regarding the brake light switch issue:

Mine would work fine in the daytime but not at night when my taillights were on. You might check to see if it works in the daytime.