Toyota Corolla 2014–2017 — technical service bulletin
Bulletin T-SB-0289-17 · NHTSA communication 10132666 · issued Oct 5, 2017
Technical service bulletin
communication type
Power Train
component
2014–2017
model years
5
vehicle entries
Official summary
TSB: Some 2014 - 2017 model year Corolla and 2017 model year iM vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P2820 present, indicating a Pressure Control Solenoid (shift solenoid valve SLP) Performance condition. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been updated to prevent 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.