2021 Ram Promaster Lane departure Problems

“We took the van on a trip out West in May 2022. During that time the Blind Spot Monitoring System would randomly shut off during our travels. It was random. Would happen a few time one day and none the next day. There were no warnings but the system alarm would ring when blind spot was disabled. I just had neck surgery and relied on the system during heavy traffic.”

“I had to replace my backup camera as it was faulty and the newer models had a recall. My blind spot monitoring system cuts off randomly going down the road. We have paid out of pocket for a new camera and the dealership can't figure out why the blind spot indicator cuts off.”

“Blind spot monitor system was disabled until recently since I purchased the 2022 Jayco Swift January 2022. Went to local Dodge dealer on July 11, 2022 to have them look at the Blind spot monitor and other items, see attached document item #3. I then learned from the Dodge Promaster Forum that many other owners had the same problem with the blind spot monitor would get disabled while driving with Promaster vans going back to 2016 at least. …”

“The Blind Spot Monitor turns itself off spontaneously. Complained to dealer for 18 months but they were unable to replicate. I finally realized I could lock in the fault if the headlights were left ON. Mechanic was able to determine the vehicle thought there was a trailer attached which disconnects the monitor intentionally. Cause could not be determined but a lighting module was replaced as it was their best guess. It has not reoccurred since and may have been resolved but I am reporting this as many owners of '21 Promasters have reported the same issue on a model specific forum.”

“The contact owns a 2021 Ram Promaster 1500. The contact stated that while driving at various speeds, the blind spot monitoring system was not working properly. The system continued to play an audible chime. The system was registering that vehicles were nearby even though there was none. The contact spoke with an unknown local dealer but, the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 300.”