2019 Ram 1500: false forward collision warnings

Filed May 23, 2025 · Driver assistance, Electrical · FL

What component or system failed or malfunctioned, and is it available for inspection upon request? -The issue involved the truck’s parking and collision avoidance systems, which suddenly shut off. A warning message appeared on the dashboard stating "Service Shifter." This issue may be related to the electronic shifter module or associated control systems. The vehicle is currently available for inspection upon request. How was your safety or the safety of others put at risk? -The sudden deactivation of both the parking and collision systems while the vehicle was in motion created a serious safety hazard. Without collision avoidance functionality and the ability to securely park the vehicle, there was increased risk of unintentional vehicle movement or inability to avoid obstacles, which could have led to a crash or injury. Has the problem been reproduced or confirmed by a dealer or independent service center? -Yes, the truck was taken to an authorized dealer for assessment, and the issue was confirmed. Diagnostic tests found trouble codes starting with "U", which typically indicate a communication or control module fault within the vehicle’s network. The codes provided from the dealer are U0159, U0140, U0100, U0137, U0102, U10121, and U0101. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -The issue has been inspected and documented by the dealership. There is no indication that police or insurance representatives have inspected it at this time, but the incident and diagnostics are recorded in the dealer’s service records. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -Yes, a warning message "Service Shifter" appeared on the dashboard. This message coincided with the shutdown of the parking and collision systems. These symptoms appeared suddenly and without prior warning during regular vehicle operation.

Filed Sep 24, 2024 · Brakes, Driver assistance · 41,297 miles · CA

The contact owns a 2019 Ram 1500. The contact stated while driving 10-15 MPH, the brake pedal was depressed, but the vehicle failed to stop immediately. The Forward Collision Avoidance system activated and prevented the vehicle from rear-ending another vehicle in front. The vehicle was taken to the dealer, where the contact was informed that the VIN was included in the federal safety agency Campaign Number: 24V653000 (Service Brakes, Hydraulic, Electronic Stability Control); however, the part to do the recall repair was not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 41,297.

Filed Dec 28, 2020 · Brakes, Driver assistance · 6,000 miles · NJ

Tl* the contact owns a 2019 ram 1500. The contact stated while driving 65 MPH, the forward collision automatic braking activated. The contact stated the ABS and forward collision warning lights were illuminated. The vehicle was taken to a local dealer chrysler jeep dodge ram of warwick (185 ny-94, warwick, ny 10990 (845) 986-2021) however, the vehicle was not diagnosed nor repaired. The manufacturer was informed of failure and a case was filed. The failure mileage was approximately 6,000.

Filed Sep 23, 2019 · Acceleration, Brakes · 4,000 miles · TX

Several times the vehicle brakes hard (as in locks up the brakes) when backing up and auto braking is enabled, but nothing is there. Same thing when driving forward, forward collision warning auto brakes when nothing at all is there, almost resulting in being rear ended at least twice before I turned it off.. At least I am able to turn it off. I kept the warning on, and it goes off all the time when I cross speed bumps or shadows from overpasses. This is extremely dangerous and continues after tsbs that are supposed to address. Another known issue that ram isnt addressing publicly is brake squealing - there is an internal memo about it, but dealerships are not addressing it - it happens when you break lightly to slow down between 70-40 MPH, but they can never seem to reproduce it at the dealer. I opened a case with ram and they have done anything other than what the dealer did...I am most worried about the safety features causing an accident, please help! Latest date the front collision warning activated when nothing was there was today. It happens all the time.

Filed Aug 14, 2019 · 4,900 miles · AL · crash

Tl* the contact owns a 2019 ram 1500. The contact stated that the forward collision warning system failed to function. While driving southbound at 50 MPH, another vehicle west bound and heading east crossed in front, causing the contact to crash into the rear driver side of the vehicle to his immediate right. The contact mentioned that the forward vehicle collison was on but failed to activate. The contact did not sustained injuries. The contact mention the other driver did not sustained injuries. A police report was filed. The vehicle was drivable and was driven to an independent mechanic collision center for the repair of the cosmetic damage and after the repair, it taken to chris myers dodge chrysler jeep dealer (27163 us-98, daphne, al 36526, (251) 621-8885) for an alignment. The contact stated that the technician completed two alignments on the vehicle but was not repaired correctly. The manufacturer was notified of the failure and provided a case number: unknown. The approximate failure mileage was 4,900. *dt

Filed Jan 10, 2019 · Acceleration, Brakes · 20,000 miles · KY

The breaking part of the collision avoidance system flashes a warning to break in and alarm goes off typically when I am crossing a bridge. While trying to merge on the interstate, the braking system applied the brakes unexpectedly and brought the vehicle to a complete stop on the interstate. There were no obstacles are cars anywhere around the front of the vehicle and there was nothing to avoid when the vehicle unexpectedly applied the brakes. A cyma almost rear ended me because there was nothing I could do. The problem has been reported to the dealer and the vehicle has spent 4 days in the shop with no solution are no apparent cause.