Lexus RX350 2012 — technical service bulletin
Bulletin L-SB-0129-12 · NHTSA communication 10133959 · issued Dec 20, 2012
Technical service bulletin
communication type
Power Train
component
2012
model years
1
vehicle entries
Official summary
Some 2012 model year RX 350 vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P219A or P219B present. The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Please follow the repair procedure below to address 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.