# Service bulletin 23\-012\-20 REV. A

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.

- Type: Service bulletin
- NHTSA id: 10175139
- Published by NHTSA: 2020\-05\-18
- Manufacturer's number: 23\-012\-20 REV. A
- Manufacturer's date: 2020\-03\-10
- NHTSA component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

## NHTSA's summary

Park Brake Pedal Doesn't Fully Return This bulletin involves inspecting and if necessary, replace the parking brake tensioner and then adjust the parking brake cable system. Customer may comment on one or more of the following:The parking brake foot pedal does not fully return. The red ?brake? light is illuminated in the Instrument Panel Cluster \(IPC\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175139-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10175139-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2019 to 2020 RAM 3500
- 2019 to 2020 RAM 4500

## Recalls for the same vehicles and component

- [2022613](/recalls/tc/2022613.md), 2022-10-25: Brakes
- [22V759000](/recalls/nhtsa/22V759000.md), 2022-10-11: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
- [2022108](/recalls/tc/2022108.md), 2022-03-11: Brakes
- [22V140000](/recalls/nhtsa/22V140000.md), 2022-03-10: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [21V023000](/recalls/nhtsa/21V023000.md), 2021-01-26: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
- [21V016000](/recalls/nhtsa/21V016000.md), 2021-01-20: SERVICE BRAKES; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS; SUSPENSION:REAR
- [21V008000](/recalls/nhtsa/21V008000.md), 2021-01-13: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS
- [2019439](/recalls/tc/2019439.md), 2019-08-29: Brakes
- [19V635000](/recalls/nhtsa/19V635000.md), 2019-08-29: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

## Other bulletins for the same vehicles and component

- [S2505000003](/bulletins/11026634.md), 2025-12-17, Service bulletin: SERVICE BRAKES. Diagnostic Trouble Code \(DTC\) C0050\-00\-Brake System Hydraulic Leak Set After Recent Repair.
- [103622](/bulletins/11014918.md), 2025-03-04, Service bulletin: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [103621](/bulletins/11014914.md), 2025-03-04, Service bulletin: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [05\-004\-24](/bulletins/11011716.md), 2024-12-10, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. "Brake Warning Lamp Illumination Over Rumble Strips Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: ● C003A\-2F \- Right Rear Wheel Speed Sensor \- Signal Erratic. ● C0037\-2F \- Left Rear Wheel Speed Sensor \- Signal Erratic. Customers may also comment on the following: ● Automatic Brake System \(ABS\) lamp and Electronic Stability Control \(ESC\) lamp turn on when driving over rumble strips. This bulletin involves replacing one or both rear wheel speed sensors. "
- [08\-222\-24](/bulletins/11008917.md), 2024-10-14, Service bulletin: SERVICE BRAKES. "Flash: Anti\-Lock Brake System \(ABS\) Module Updates \*\*Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\):\*\* ● \*\*C2200\-47 \- Anti\-Lock Brake Module Internal \- Watchdog / Safety Auc Failure.\*\* ● C006A\-49 \- Multi\-Axis Acceleration Sensor \- Internal Electronic Failure. Customers may also comment on one or more of the following: ● \*\*Anti\-lock Brake System \(ABS\) indicator light illuminated in the Instrument Panel Cluster \(IPC\). ● Electronic Stability Control \(ESC\) indicator light illuminated in the IPC. ● The Red Brake Warning indicator light illuminated in the IPC.\*\* This bulletin involves reprogramming the ABS with the latest software available."
- [99399](/bulletins/11005361.md), 2024-07-31, Other: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [99400](/bulletins/11005359.md), 2024-07-31, Other: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [1800824](/bulletins/10251873.md), 2024-03-18, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT; PARKING BRAKE; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: P0506\-00 \- Idle Control System RPM \- Lower Than Expected.P0607\-00 \- ECU Internal Performance. P20E8\-00 \- Reductant Pressure Too Low. P0301\-00 \- Cylinder 1 Misfire. P0302\-00 \- Cylinder 2 Misfire. P0303\-00 \- Cylinder 3 Misfire. P0304\-00 \- Cylinder 4 Misfire. P0305\-00 \- Cylinder 5 Misfire. P0306\-00 \- Cylinder 6 Misfire. P0299\-00 \- Turbocharger Underboost. P1D73\-00 \- AGS Performance. P0626 \- Generator Field Control Circuit High. P218F \- Reductant No Flow Detected. P2002 \- Diesel Particulate Filter Efficiency Below Threshold. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. P0191 \- Fuel Rail Pressure Sensor Circuit Performance. P0461 \- Fuel Level Sensor 1 Performance. P0401 \- EGR System Performance. P20EE \- SCR NOx Catalyst Efficiency Below Threshold \- Bank 1. P061A \- Level 2 Torque Performance. P061B \- Internal Control Module Torque Calculation Performance. P061E \- Internal Control Module Brake Signal Performance. P062C \- ETC Level 2 MPH Performance. P0106 \- Manifold Absolute Pressure Sensor Performance \(In extreme cold ambient temperatures\). P0116 \- Engine Coolant Temperature Sensor Performance. P0420 \- Catalyst System Efficiency Bank 1. P1507 \- Crankcase Filter Restriction. P203F \- Reductant Level Too Low. P226C \- Turbocharger Boost Control ?A? Slow Response \(In extreme cold ambient temperatures\). P2579 \- Turbocharger Speed Sensor Circuit. U0101 \- Lost Communication with TCM. U02A3 \- Lost of Communication with PM Sensor. U3017 \- Control Module Timer/Clock Performance. Customers may also experience one or more of the following Power
- [1800724](/bulletins/10251872.md), 2024-03-18, Service bulletin: POWER TRAIN; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); BACK OVER PREVENTION; EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE; EQUIPMENT; FUEL SYSTEM, DIESEL; PARKING BRAKE. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: P0506\-00 \- Idle Control System RPM \- Lower Than Expected. P0607\-00 \- ECU Internal Performance. P20E8\-00 \- Reductant Pressure Too Low. P0301\-00 \- Cylinder 1 Misfire. P0302\-00 \- Cylinder 2 Misfire. P0303\-00 \- Cylinder 3 Misfire. P0304\-00 \- Cylinder 4 Misfire. P0305\-00 \- Cylinder 5 Misfire. P0306\-00 \- Cylinder 6 Misfire. P0299\-00 \- Turbocharger Underboost. P1D73\-00 \- AGS Performance. P0626 \- Generator Field Control Circuit High. P218F \- Reductant No Flow Detected. P2002 \- Diesel Particulate Filter Efficiency Below Threshold. P24A5 \- EGR Cooler Bypass Bank 1 Control Stuck. P0191 \- Fuel Rail Pressure Sensor Circuit Performance. P0461 \- Fuel Level Sensor 1 Performance. P0401 \- EGR System Performance. P20EE \- SCR NOx Catalyst Efficiency Below Threshold \- Bank 1. P061A \- Level 2 Torque Performance. P061B \- Internal Control Module Torque Calculation Performance. P061E \- Internal Control Module Brake Signal Performance. P062C \- ETC Level 2 MPH Performance. P0106 \- Manifold Absolute Pressure Sensor Performance \(In extreme cold ambient temperatures\). P0116 \- Engine Coolant Temperature Sensor Performance. P0420 \- Catalyst System Efficiency Bank 1. P1507 \- Crankcase Filter Restriction. P203F \- Reductant Level Too Low. P226C \- Turbocharger Boost Control ?A? Slow Response \(In extreme cold ambient temperatures\). P2579 \- Turbocharger Speed Sensor Circuit. U0101 \- Lost Communication with TCM. U02A3 \- Lost of Communication with PM Sensor. U3017 \- Control Module Timer/Clock Performance.
- [S1808000152](/bulletins/10247965.md), 2024-01-02, Service bulletin: SERVICE BRAKES. CEL \(Check Engine Lamp\) Illuminates, Recent PCM Replace or Flash Update Performed, Diagnostic Trouble Codes \(DTCs\) P057B Brake Pedal Position Sensor Circuit Performance, P1572 Brake Pedal Stuck, C0042\-54 Brake Pedal Missing Calibration

JSON: [/v1/bulletins/10175139](/v1/bulletins/10175139)

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