WenmarOpen by Wenmar Pro

Service bulletin 05-004-24

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11011716
Published by NHTSA2024-12-10
Manufacturer's number05-004-24
Manufacturer's date2024-12-04
NHTSA componentSERVICE BRAKES; ELECTRICAL SYSTEM
Manufacturer's systemRear Wheel Speed Sensor

NHTSA's summary

"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. "

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Electrical system

Trouble codes named

C0037, C003A

Vehicles listed
RAM 35002019, 2020, 2021, 2022, 2023, 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20243282024-06-06. Brakes
24V4150002024-06-06. SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE
20230262023-02-09. Electrical
23V0600002023-02-09. ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS
20221082022-03-11. Brakes
22V1400002022-03-10. ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20216292021-10-14. Electrical
21V7980002021-10-14. ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS
20211382021-03-11. Electrical
21V1630002021-03-11. ELECTRICAL SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
08-339-262026-09-30. Service bulletin. Max Tow Right and Left Rear Wheel Speed Sensors Inoperable Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● C003A-62 - Right Rear Wheel Speed Sensor - Signal Compare Failure. ● C0037-62 - Left Rear Wheel Speed Sensor - Signal Compare Failure. ● C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. ● C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic. Customers may comment on one or more of the following: ● The check engine light is illuminated. ● The Anti-Lock Brake System (ABS) light is illuminated. ● The Traction Control System (TCS) light is illuminated. ● The Forward Collision Warning (FCW) light is illuminated. ● The "4WD Unavailable" message is displayed in the Instrument Panel Cluster (IPC). ● Vehicle might not shift from Drive to Park or vice versa. NOTE: The vehicle safe hold systems are in place if the vehicle does not shift to Park. ● Vehicle will not shut off. This bulletin involves replacing both rear wheel speed sensors.
91009012026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
S2623000052 REV. A2026-09-10. Service bulletin. Airbag Warning Light On or Intermittent. The Occupant Restraint Controller (ORC) May Have The Following DTCs (Active/Stored)
1138552026-08-26. Service bulletin. SWITCH AND BEZEL - FRONT DOOR
1138542026-08-26. Service bulletin. SWITCH AND BEZEL - FRONT DOOR
1137442026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
1137422026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
08-272-26 REV. A2026-07-23. Service bulletin. Air Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected.
9100803 Rev 32026-07-18. Service bulletin. Front Fog Lamp RT 1) If the lamp contains moisture, do not replace it immediately. Turn the fog lamp on for one hour and inspect it afterward. Refer to 23-008-25 Rev.A. Exterior Front Lamps Condensation Clearing Procedure for details. 2) If the fog lamp(s) do not light. Refer to Star Online Publication S2523000085 for details.
08-272-262026-07-18. Service bulletin. Air Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected.