Technical Service Bulletin TSB010421 — 2021 TOYOTA COROLLA HATCHBACK
LANE DEPARTURE
Bulletin Details
| TSB ID | TSB010421 |
| Manufacturer | |
| Vehicle | 2021 TOYOTA COROLLA HATCHBACK |
| Component | LANE DEPARTURE |
| Communication Date |
Bulletin Summary
TSB: Some 2018 ? 2024 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, M20A-FKS, or M20A-FXS engine may exhibit one or more of the following conditions: ?Milky/discolored engine oil. ?An ?Oil Pressure Low? warning message on the Multi-information Display (MID). ?A MIL ON condition with Diagnostic Trouble Codes (DTCs) P05202A (Engine Oil Pressure Sensor/Switch ?A? Signal Stuck in Range) and/or P052477 (Engine Oil Pressure Too Low [Severe]) present. Moisture from blow-by gases condenses and accumulates in the engine oil during short trips in extreme cold weather. When the moisture in the oil freezes, the oil pressure may drop, and the aforementioned warning indicators may display. Follow the procedures in this bulletin to address these conditions.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 TOYOTA COROLLA HATCHBACK
T-SB-0078-21 Rev
ELECTRICAL SYSTEM
TSB008921Rev2
ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
T-SB-0035-20 Rev
EQUIPMENT
T-SB-0095-20
ELECTRICAL SYSTEM
T-SB-0041-20 Rev
STRUCTURE
T-SB-0029-20 Rev
WHEELS