WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Jeep Wrangler

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.

1020 on file from NHTSA, as of 2026-10-19.

About P00AF on the 2020 Jeep Wrangler: 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: P00AF are shown. Show all

Bulletins, newest first
18049212023-01-17. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION; SERVICE BRAKES; FUEL SYSTEM, GASOLINE. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P00AF-00 -Turbocharger Boost Control Module "A" Performance. P0106-00 - Manifold Absolute Pressure Sensor Performance. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P015E-00 - Excessive Time To Enter Closed Loop Fuel Timing Control. P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 -
18049212022-10-17. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P00AF-00 -Turbocharger Boost Control Module "A" Performance. P0106-00 - Manifold Absolute Pressure Sensor Performance. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P015E-00 - Excessive Time To Enter Closed Loop Fuel Timing Control. P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 - Cylinder 1 Injection Timing Performance - Over Advanced. P01CD-00 - Cylinder 2 Injection Timing Performance - Over Retarded. P01CE-00 - Cylinder 2 Injection Timing Performance - Over Advanced. P01CF-00 - Cylinder 3 Injection Timing Performance - Over Retarded. P01D0-00 - Cylinder 3 Injection Timing Performance - Over Advanced. P01DL-00 - Cylinder 4 Injection Timing Performance - Over Retarded. P01D2-00 - Cylinder 4 Injection Timing Performance - Over Advanced. P01D3-00 - Cylinder 5 Injection Timing Performance - Over Retarded. P01D4-00 - Cylinder 5 Injection Timing Performance - Over Advanced. P01D5-00 - Cylinder 6 Injection Timing Performance - Over Retarded. P01D6-00 - Cylinder 6 Injection Timing Performance - Over Advanced. P0534-00 - A/C Refrigerant System "A" Charge Loss. P204F-00 - Reductant System Performance. P2199-00 - Intake Air Temperature Sensor 1/2 Correlation.
18049212022-10-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P00AF-00 -Turbocharger Boost Control Module "A" Performance. P0106-00 - Manifold Absolute Pressure Sensor Performance. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P015E-00 - Excessive Time To Enter Closed Loop Fuel Timing Control. P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 - Cylinder 1 Injection Timing Performance - Over Advanced. P01CD-00 - Cylinder 2 Injection Timing Performance - Over Retarded. P01CE-00 - Cylinder 2 Injection Timing Performance - Over Advanced. P01CF-00 - Cylinder 3 Injection Timing Performance - Over Retarded. P01D0-00 - Cylinder 3 Injection Timing Performance - Over Advanced. P01DL-00 - Cylinder 4 Injection Timing Performance - Over Retarded. P01D2-00 - Cylinder 4 Injection Timing Performance - Over Advanced. P01D3-00 - Cylinder 5 Injection Timing Performance - Over Retarded. P01D4-00 - Cylinder 5 Injection Timing Performance - Over Advanced. P01D5-00 - Cylinder 6 Injection Timing Performance - Over Retarded. P01D6-00 - Cylinder 6 Injection Timing Performance - Over Advanced. P0534-00 - A/C Refrigerant System "A" Charge Loss. P204F-00 - Reductant System Performance. P2199-00 - Intake Air Temperature Sensor 1/2 Correlation.
S20180000092022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.
18-049-212021-06-28. Service bulletin. ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P00AF-00 -Turbocharger Boost Control Module "A" Performance. P0106-00 - Manifold Absolute Pressure Sensor Performance. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P015E-00 - Excessive Time To Enter Closed Loop Fuel Timing Control. P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 - Cylinder 1 Injection Timing Performance - Over Advanced. P01CD-00 - Cylinder 2 Injection Timing Performance - Over Retarded. P01CE-00 - Cylinder 2 Injection Timing Performance - Over Advanced. P01CF-00 - Cylinder 3 Injection Timing Performance - Over Retarded. P01D0-00 - Cylinder 3 Injection Timing Performance - Over Advanced. P01DL-00 - Cylinder 4 Injection Timing Performance - Over Retarded. P01D2-00 - Cylinder 4 Injection Timing Performance - Over Advanced. P01D3-00 - Cylinder 5 Injection Timing Performance - Over Retarded. P01D4-00 - Cylinder 5 Injection Timing Performance - Over Advanced. P01D5-00 - Cylinder 6 Injection Timing Performance - Over Retarded. P01D6-00 - Cylinder 6 Injection Timing Performance - Over Advanced. P0534-00 - A/C Refrigerant System "A" Charge Loss. P204F-00 - Reductant System Performance. P2199-00 - Intake Air Temperature Sensor 1/2 Correlation.
S20180000092020-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.

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