<1000 Miles & CEL

[Dirto-93]

Welp, it happened already.

I had just finished washing the car and took her for a spin in the nice Sunday weather. About 750 miles on it now, so feeling good about being more spirited when driving, but still not redlining/ramming thought the gears.

Went to downshift into 2nd from 3rd gear at about 45 mph (w Rev matching on) and I lost all throttle response, the dash lit up with a CEL and ESC error saying to service immediately. Cadillac app is showing the screenshot below. The engine had a very rough idle, but after pulling over and turning it off, it seemed to be back to normal.

Hopefully no major service needed as a result. Anybody have any experience with this sort of problem?

View attachment 8092

 

[Tall Steve]

When my BW does anything crazy like that I just pull over and reboot it and so far it has always worked out.... My car gets all out stupid after a GM download..

 

[668LT4]

When my BW does anything crazy like that I just pull over and reboot it and so far it has always worked out.... My car gets all out stupid after a GM download..

Steve - does that happen on both the 4 and the 5?

 

[Tall Steve]

Steve - does that happen on both the 4 and the 5?

Only on the 5, and especially after a software update.... I have not had any issues with the 4 yet....

 

[668LT4]

Only on the 5, and especially after a software update.... I have not had any issues with the 4 yet....

Thanks for that. I was just curious.

 

[Dirto-93]

When my BW does anything crazy like that I just pull over and reboot it and so far it has always worked out.... My car gets all out stupid after a GM download..

Operation seemed back to normal after a restart but the CEL was still on...

 

[Tall Steve]

Operation seemed back to normal after a restart but the CEL was still on...

It may clear in a few miles....

 

[Bakerdog]

Have you contacted OnStar? They will usually tell you the specific fault codes that are stored as a result of the CEL. The dealer will also tell you, but nice to know before you walk in.

 

[therustytrombone]

Only on the 5, and especially after a software update.... I have not had any issues with the 4 yet....

Another for the 4!

 

[DecadenceFTW]

Another for the 4!

Liking my choice more and more each day. LOL. In all seriousness, that really stinks to OP. Hope you don't have many situations like that!

 

[Dirto-93]

They ended up replacing the throttle body entirely and the issue seems resolved.

 

[1Evil55]

Should have had them polish it first.

 

[shbox]

They ended up replacing the throttle body entirely and the issue seems resolved.

LOL, good to know there was stock available to do that.

 

[Dirto-93]

LOL, good to know there was stock available to do that.

The throttle body for the BW is shared with the Escalade, so that's probably why.