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P0031 and P0037 codes

tcadrone

Grenadier Owner
Lifetime Supporter
Local time
5:10 PM
Joined
Jan 25, 2026
Messages
2
Location
Austin, TX
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
 
Definitely covered under warranty. Dealer should be able to get it straightened out.
 
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