P0031 and P0037 codes

[tcadrone]

2025 Grenadier. I filled up yesterday and got check engine light. Ok, known issue, bought a code thing from AutoZone to reset and it shows the codes above re a cat heater and O2 sensor heater emissions stuff. Permanent code so can't reset. Any ideas? Less than 1000 miles on vehicle

 

[The_Ick]

Definitely covered under warranty. Dealer should be able to get it straightened out.

 

[tcadrone]

Definitely covered under warranty. Dealer should be able to get it straightened out.

Same story, 2 hours away was hoping for an easy fix lol

 

[The_Ick]

Same story, 2 hours away was hoping for an easy fix lol

I figured distance was the issue. Probably has to go to them no matter what. Hopefully not going into limp mode.

 

[tcadrone]

Problem found, O2 sensor harness was lying on the exhaust manifold. Pulled it away and cleared codes, all good. Now to the dealer to fix. Nice QA Ineos lol

 

[The_Ick]

Beg you for a larger view pic of the location

 

[tcadrone]

Best I can do, I'm not near it now

 

[Worthygirl]

2025 Grenadier. I filled up yesterday and got check engine light. Ok, known issue, bought a code thing from AutoZone to reset and it shows the codes above re a cat heater and O2 sensor heater emissions stuff. Permanent code so can't reset. Any ideas? Less than 1000 miles on vehicle

Same issue with my 2024. It is still running great and no other issues. They have cleared the codes 2x, but comes back after 10-12 key starts. Only 5K miles and all the updates have been done.
Going in next week for a new O2 sensor, but I shared your photos and this string. Thank you so much for posting.