After the Local Hyundai Dealer Changed my Oil and Flashed the ECM with Update 19-01-002 my vehicle bucks, stutters and now has a flashing CEL light.

What are possible causes for this problem and does the vehicle need to be towed to the Hyundai Dealer?

The 2017 Santa Fe Sport has 8800 miles on it.

It has had no other problems

All maintenance inspections passed on 04/03/2019

A tire rotation and oil change were done on 04/03/2019 along with ECM Update 19-01-002.


The bucking and stalling started occurring on 04/07/2019.

The CEL light started flashing on 04/09/2019. 



I will recommend you to immediately.. stop your car and take it to the garage.


A Flashing ECL light is never a good sign and can most probably due to your Engine misfiring. Should it happen in a new car? NO.. can it happen? well.. it just happened.


If you keep on driving your car like this, it will only damage your engine further. Please don't drive it, get towed to the dealership

Plain text

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type='1 A I'> <li> <dl> <dt> <dd> <h2 id='jump-*'> <h3 id> <h4 id> <h5 id> <h6 id>
  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
  • Only images hosted on this site may be used in <img> tags.
The content of this field is kept private and will not be shown publicly.

Disclaimer: Youcanic has made every effort to assure the accuracy of the information on this page. Neither Youcanic nor its affiliates assume responsibility for any loss or damage due to any errors, omissions, lack of information. You agree to hold Youcanic free from any liability arising out of the use of any information contained within. All pictures and references to trademarks and car names are for reference only and do not imply an association with the manufacturer. Consult your owner's manual or authorized factory manuals when performing repair procedures. By entering this site, you agree to our Terms & Conditions and Privacy Polity.