Toyota Corolla 2023–2024 — technical service bulletin
Bulletin T-SB-0041-24 · NHTSA communication 11003598 · issued Apr 26, 2024
Technical service bulletin
communication type
Engine
component
2023–2024
model years
4
vehicle entries
Official summary
Some 2023 – 2024 model year Corolla and Corolla Cross vehicles with M20A-FKS engines may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P11EA00 (Bank 1 Air-Fuel Ratio Imbalance (Port)) present. There are no drivability issues or other symptoms associated with this condition.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.