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Service bulletins for the 2011 Jeep Compass

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

114 on file from NHTSA, as of 2026-10-19.

About P050B on the 2011 Jeep Compass: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: P050B are shown. Show all

Bulletins, newest first
18-011-132022-07-25. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE; ELECTRICAL SYSTEM. Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module (PCM) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set. P050B - Cold Start Ignition Timing Performance
18-011-132018-05-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE; ELECTRICAL SYSTEM. Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module (PCM) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set. P050B - Cold Start Ignition Timing Performance
18-011-132018-02-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start-up This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module (PCM) software. Customers may indicate that they hear a clatter or rattle noise coming from the engine on initial start up after a long cold soak. A small number of customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set. P050B - Cold Start Ignition Timing Performance

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.