chadpenning10
Posts: 4
Joined: Sun Nov 21, 2021 11:26 am

SERVICE LIGHT goes on and off

Sun Nov 21, 2021 11:32 am

This is the fourth time in the last few years where my "Needs Service Soon" light pops on (the car icon with an exclamation point bisecting it vertically). However, before I have a chance to get it to the dealership for diagnostics, the light goes off. Almost every time, it stays on for approximately 12-24 hours and then it reverts to being off. Anybody experiencing anything like this or have any suggestions? My car is a 2016.

MrDRMorgan
Posts: 1191
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca in Central California

Re: SERVICE LIGHT goes on and off

Sun Nov 21, 2021 3:52 pm

See if you can find someone with an OBD2 scanner and check the OBD2 port for possible error codes. Make a note of each code and then clear them and see if they return. In my 2014 Spark EV, I had a couple of codes that kept popping up after being cleared multiple times. It turned out I had an intermittent transmission fluid temperature sensor. It cost me $700 to have it replaced but I have not had any more codes pop up.

TorquePro will work too and provides much more information. I took pictures of the TorquePro readings on my phone and I was able to show the dealer how the transmission fluid temperature was jumping all over the place.

chadpenning10
Posts: 4
Joined: Sun Nov 21, 2021 11:26 am

Re: SERVICE LIGHT goes on and off

Mon Nov 22, 2021 7:54 am

Thank you for this great advice.

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