Check engine light

Any guesses would be a wild crapshoot without the codes it's throwing.

just got an email from onstar and says they detected an issue with the emission system, ok so what could be ?

Francisc said:

just got an email from onstar and says they detected an issue with the emission system, ok so what could be ?

Click to expand...

If it's a Gen 2, there have been some early issues with bad O2 sensors.

yes I have gen2 2016 lt with lots of extra packages and 2017 lt with RS package

Francisc said:

just got an email from onstar and says they detected an issue with the emission system, ok so what could be ?

Click to expand...

In that case you can press the OnStar button inside the car while running and they can give you the code and tell you within how many days you can put if off before going to the dealership for it.

I just picked up my car from the dealer service, yep they had to replace the oxygen sensor it's all fixed now ?

I had to have an oxygen sensor replaced in mine too with about 6000 km on the odo. 2016.5 LT. Haven't had any codes since and am at 11K km now.

I have a 2017 LS, the check engine light came on around 6000 miles (code PO15B). There is a recalibration procedure for the ECM, (GM service bulletin#17-NA-155). Had the service done today, will let you know if it cures the concern, have to drive the vehicle 50-60 miles first.

Francisc said:

just got an email from onstar and says they detected an issue with the emission system, ok so what could be ?

Click to expand...

Before doing anything double check with On Star (via the OS button in the car). Ask them to run a diagnostic check on the car. I got an e-mail from them that they detected an issue with the emission system. There was no check engine light or code on the DIC. OS ran the check with everything coming up OK. Needless to say I was relieved as my car (2017-LT) had less the 1,000 miles on it.

I have a 2017 cruze. The engine light has gone on for the 3rd time from what I have been told from onstar it's an emission problem smh. I've only had the vehicle for 4 months this is driving me crazy.......