S2108000023

Case Number: S2108000023
Release Date:
1/22/2021
Symptom/Vehicle Issue: Blind Spot Sensor Light Operate Sporadically And Indicates
False Detection Without Any DTC
Discussion: The customer may experience a blind spot indicator light triggered
multiple times in a row without any objects in the blind spot zone. There will be no
DTC / warning about the blind spot function being disabled, as the module will not
recognize false detections as an issue.
Diagnosis: If a DTC exists for the Blind Spot Sensors, perform the DTC diagnostics.
For vehicle without Blind Spot DTC’s and sporadic illumination of the Blind Spot light in
the mirror. Ensure that the taillights which house the blind spot sensors are cleaned of
any dirt or debris. Test drive 2-3 miles without any objects in the blind spot zone and
determine if the blind spot indicator light illuminate’s multiple times. The Blind Spot
Module is dependent on the side of the vehicle that it is located, so false detection
events will need to occur on the same side of the vehicle consistently.
Repair: If you determine the blind spot indicator illuminates sporadically without any
objects in the vehicles blind spots. Replace the Blind Spot Module in the tail lamp. Only
replace the BSM on the side of the vehicle that exhibits false detection. Do not replace
the Blind Spot Module on both sides of the vehicle unless both sides exhibit the false
detection issue.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechCONNECT or eCONTACT ticket if no
solution is found
FCA US LLC
Version 4.3 10/28/2020