Yukon Having Electrical Problems After Installing New Plugs and Wires

I had my 2014 Yukon xl serviced. The service included changing and installing new spark plugs and wires. When I drove the vehicle after leaving the service department, the lights on the dashboard and the interior lights started flashing off and on and the door locks repeatedly locked and unlocked. It did this for about 5 times. What could have caused my Yukon to do this? Since then, my remote start doesn't work and my seat heater doesn't work.


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November 28, 20180 found this helpful

Yikes...you need to get it back to where you had the service and get them to look into this and fix it.

Car repairs are expensive and any good mechanic or dealer should stand behind his/her work and make it right for you.

Please post back with the results. Good luck!!!

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November 28, 20180 found this helpful

Do not attempt to fix this car yourself. Call them and tell them you are taking the car back and they should fix it correctly.

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December 3, 20180 found this helpful

Make a list of exactly what is happening as somehow they have messed up your wiring as well as other things and take it back ASAP.


In all probability they will deny that what they did has anything to do with your present problems.
Hopefully this is a reputable garage and will accept responsibility.

There was an expose about garages a while back and they proved that some mechanics will purposely mess things up so you will have to have even more repairs - hope this was not one like that but it sure seems odd that so many things are going wrong.

Have you checked this business on the Internet to see if there are any similar complaints?

Hope they do the repairs without a hitch.

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