Voluntary emissions service campaign: lambda-iii 3.5L GDI engine DTC P00B7 ECM logic improvement (SC290)

Bulletin number

SC290_TSB (SC290)

Component

Engine

Summary

TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: LAMBDA-III 3.5L GDI ENGINE DTC P00B7 ECM LOGIC IMPROVEMENT (SC290) - This bulletin provides the procedure to update the software logic of the Engine Control Module (ECM) system on some 2022-2024MY Carnival (KA4) vehicles produced from January 4, 2021 through November 6, 2023. The subject vehicles may have engine calibrations that were not optimized for emissions standards under certain specific conditions, which may cause the vehicle to release air pollution which exceed Federal and California standards. As a result, the subject vehicles may exhibit an illumination of Malfunction Indicator Lamp (MIL) with DTC P00B7.

Owners of these vehicles have filed 32 complaints in the engine category.