Technical Service Bulletin JSD-Region Lette — 2017 TOYOTA COROLLA
POWER TRAIN
Bulletin Details
| TSB ID | JSD-Region Lette |
| Manufacturer | |
| Vehicle | 2017 TOYOTA COROLLA |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Region Letter: An Electronic Control Unit (ECU) in the subject vehicles has improper programming that could lead a component in the Continuously Variable Transmission (CVT) to unnecessarily cycle and experience abnormal wear. If this component becomes damaged, the Malfunction Indicator Lamp (MIL) may illuminate in the instrument cluster and the vehicle could experience a reduction of speed. After reaching a pre-determined gear ratio, the vehicle can be operated up to approximately 37 mph.
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 2017 TOYOTA COROLLA
T-SB-0068-20
ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
T-SB-0024-20
EQUIPMENT
T-SB-0003-19 Obs
ELECTRICAL SYSTEM:SOFTWARE
JSD-Technical In
POWER TRAIN
T-TT-0500-18
POWER TRAIN
T-TT-0482-18
ELECTRICAL SYSTEM
T-SB-0024-15_Rev
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
T-SB-0336-17
ENGINE
T-SB-0019-16_Obs
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
T-SB-0190-17
ELECTRICAL SYSTEM:SOFTWARE