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08-339-26

Manufacturer communications

Publication date
2026-09-24
Received by NHTSA
2026-09-30
NHTSA record numbers
11037585

Manufacturer summary

Original wording in English

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.

NHTSA manufacturer communications ↗

Reported code forms

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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MakeModelModel year
Ram35002026
Ram35002025
Ram35002024

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