Issues with Cruise Adaptive Relearn. Cruise does not engage

Phil Owner/Technician North Carolina Posted   Latest   Edited  
Unsolved
Collision
2014 Buick LaCrosse Leather 3.6L (3 LFX) 6-spd (6T70)
Cruise Control Will Not Engage

Have replaced Cruise Control Switch, checked fuses and reprogrammed Cruise Control Module. 

When starting cruise control relearn, green vehicle light on dash flashes, then goes off. 

When you try to set cruise speed, nothing happens.

-1
Missing Info
Missing Tests
Missing Vehicle
Matt Technician
Missouri
Matt
 

Probably help if we knew what you were working on

+1
Ð Awarded
Agree
Rob Owner/Technician
British Columbia
Rob
 

What ever it is for sure it's broken.

+1
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Funny
Kent Mechanic
South Dakota
Kent
 

Most vehicles have pids for cruise control inhibited. Usually a list of them.

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Juan Technician
Texas
Juan
 

Axis alignment/calibration dtc's? Adaptive cruise is different from cruise control. Forward radar/windshield camera.

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Dan Owner/Technician
Texas
Dan
 

… Any LED Bulbs installed… I knocked out my cruise operation on my '02 Avalanche by putting those in it… had to add resistors to restore operation (and slow blink rate too)… Dan H.

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Juan Technician
California
Juan
 

Had a Cadillac CTS with same issue. Had been in a front end accident (actually right front fender & headlight). Managed to damage the cruise control module also. Body shop installed a new module & I programmed it. Didn't work... won't do the calibration re-learn. Had to take off the grill & align the cruise control module as bracket was bent. Worked fine after that.

+2
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Helpful
Keith Diagnostician
Oklahoma
Keith
 

Go back to the SI and read the programming and calibration steps very carefully. The key off times are very important.

+2
Ð Awarded
Agree
Helpful