Cruise control fluctuates?

Tiny
CWHITE73
  • MEMBER
  • 2021 KIA SOUL
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
Once I set my cruise control, instead of staying at the speed I set it at it fluctuates up to 5-7 miles faster / slower. Cruise control is supposed to maintain the speed it's set to correct?
Sunday, May 21st, 2023 AT 8:17 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
It sounds like you may have a radar sensor that is going out which affects the cruise control. We should run a CAN scan; you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Here are the cruise control wiring diagrams so you can see how the system works. Check out the images (below). Please let us know what happens.
Was this
answer
helpful?
Yes
No
Monday, May 22nd, 2023 AT 10:30 AM

Please login or register to post a reply.

Sponsored links