FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Upon start up of the vehicle multiple warning codes appear; ABS turned off, 4 wheel drive temporarily disabled, Stability turned off, front and rear parking sensors disabled, Cruise Control disabled (in all forms). If vehicle is put into drive, or issue happens when the vehicle is already in drive; Unable to detect selected gear (switching from Drive/Reverse into Park) which results in not being able to turn the vehicle off.
NHTSA complaint #11763095 — an unverified report by a vehicle owner.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures. My truck has been to 2 dealerships for a total of 5 repair attempts so far.
NHTSA complaint #11759011 — an unverified report by a vehicle owner.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures.
NHTSA complaint #11759017 — an unverified report by a vehicle owner.
Multiple times at random the vehicle will display an alert on the dash that the 4X4 system, anti lock breaks, adaptive breaking as well as forward and rear collision sensors and cruise control are all disabled. This has happened 5 times now. I have taken the vehicle into the dealership and they stated that the rear Wheel Speed Sensors" were bad and replaced them. Since the wheel sensors have been replaced ( less than 200 miles ago) this system has triggered the same alert and conditions 2 more times. This is a very dangerous situation for a vehicle that is made for towing heavy trailers and loads.
NHTSA complaint #11713186 — an unverified report by a vehicle owner.
Burleson, TX
FORWARD COLLISION AVOIDANCE: WARNINGS
Multiple times at random the vehicle will display an alert on the dash that the 4X4 system, anti lock breaks, adaptive breaking as well as forward and rear collision sensors and cruise control are all disabled. This has happened 5 times now. I have taken the vehicle into the dealership and they stated that the rear Wheel Speed Sensors" were bad and replaced them. Since the wheel sensors have been replaced ( less than 200 miles ago) this system has triggered the same alert and conditions 2 more times. This is a very dangerous situation for a vehicle that is made for towing heavy trailers and loads.
NHTSA complaint #11713186 — an unverified report by a vehicle owner.
Denver, CO
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
The warning lights on the dashboard come on when driving. ABS, VSC, 4WD, automatic emergency braking etc. are all shut down when this happens. The lights may stay on for a few days or turn off at the next restart with only a check engine light remaining on. It has been back to two different the Ram dealer for repairs 4 times for this issue. Starting out on 04/25/2025 at 419 miles, the last time was 12/22/2025 at 3,677 miles. They have replaced several sensors and updated the computer several times, yet the problem still persists. It may be fine for several hundred miles or it may happen several times in one hundred miles. At this point the dealer doesn't seem to know what more to do.
NHTSA complaint #11712910 — an unverified report by a vehicle owner.
The warning lights on the dashboard come on when driving. ABS, VSC, 4WD, automatic emergency braking etc. are all shut down when this happens. The lights may stay on for a few days or turn off at the next restart with only a check engine light remaining on. It has been back to two different the Ram dealer for repairs 4 times for this issue. Starting out on 04/25/2025 at 419 miles, the last time was 12/22/2025 at 3,677 miles. They have replaced several sensors and updated the computer several times, yet the problem still persists. It may be fine for several hundred miles or it may happen several times in one hundred miles. At this point the dealer doesn't seem to know what more to do.
NHTSA complaint #11712910 — an unverified report by a vehicle owner.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures. I've had this problem occur over half a dozen times. It has been to the dealership to be repaired 3 times so far. After the 2nd time at the dealership, the sensors only last less than 23 miles.
NHTSA complaint #11712799 — an unverified report by a vehicle owner.
Raeford, NC
LANE DEPARTURE: BLIND SPOT DETECTION
On January 14, 2026, while starting my 2025 RAM 3500 with approximately 4,000 miles on the vehicle, the digital instrument cluster completely failed to function. After the engine started and the vehicle was running, the dashboard continued to display “Press Brake and Press Button to Start,” as if the vehicle had not started. All gauges and indicators were inoperative, including the speedometer, tachometer, warning lights, and vehicle information displays. Although the vehicle could be driven and exterior turn signals were functioning, there was no indication on the instrument cluster. No speed, engine RPM, or warning alerts were visible to the driver. After driving the vehicle home and allowing it to sit for a period of time, the vehicle was restarted and the instrument cluster returned to normal operation, indicating an intermittent failure. Based on known issues reported with digital instrument cluster failures, this appears to be a potential electrical and/or software-related defect. In addition to the instrument cluster failure, the vehicle has experienced electrical issues related to trailer lighting. When towing a new trailer equipped with LED lights, the running lights would not function when connected to this truck, although the trailer lighting worked properly when connected to other vehicles. The trailer was taken to the manufacturer’s shop for a full inspection, which confirmed the trailer was functioning properly and identified the truck as the source of the issue. On January 12, 2026, during an oil change service, the trailer lighting issue was reported to the dealership. When the technician connected a diagnostic tester to the truck’s trailer wiring connection, portions of the connection began to smoke. The dealership determined there was a defect in the truck’s electrical system and ordered a replacement component. I have video documentation provided by the dealership technician showing the issue at the trailer light connection.
NHTSA complaint #11711007 — an unverified report by a vehicle owner.
Bad wheel speed sensor which disables ABS, cruise control, and all the ADAS systems. Vehicle has been to dealer 5 times for this in less than 8 months. Stellantis takes over a month to replace the part. Vehicle also will not shut off and/or be able to move while this happens.
NHTSA complaint #11705740 — an unverified report by a vehicle owner.
Gold bar, WA
FORWARD COLLISION AVOIDANCE: WARNINGS
2025 ram 3500 dual rear wheel truck has intermittent anti lock brake failure . As well as traction control, forward collision warning/assist, lane departure, high beam headlights, and other safety systems. The dealership has tried to fix these issues 8 or more times, with no success. It is illegal for Ram and Stellantis to put customers back into vehicles with anti lock brake failures. In wet/slick/or hard braking situations, loss of anti lock brakes is dangerous to my family as well as other drivers on the roads. And that danger increases when towing a large trailer when the failure happens. The dealership and Stellantis/Ram know of these problems with 2025-26 dual rear wheel Ram pickups.
NHTSA complaint #11699680 — an unverified report by a vehicle owner.
Chelmsford, MA
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Ton of warning lights can on like abs, traction control and some other sensors. When put in Drive the D flashed and try k would not move. Put back in park would not recognize it was in park and would not shut off. The only way to shut off the truck with disconnect both batteries and pull the fuse for the fuel pump.
NHTSA complaint #11683024 — an unverified report by a vehicle owner.