2020 Ram 1500: multiple warning lights

Filed Apr 26, 2025 · Electrical, Engine · 85,000 miles · CA

So I am driving on the freeway 70mph and I get a message on my dash that says service shifter then every single light on the dash came on and started to make a beeping noise. I pulled over on the side of the freeway and then all the lights dissappear except check engine. I continued to drive to next exit and this time all lights came on again and truck appeared to be shutting off and turning back on while driving, steering wheel got hard to move all while all lights turning on, on dash. I have taken to shop 3 times first time they told me it was battery so I purchased battery and diagnostic fee for 600. Still continued to have issues even after replacing battery. Then they tell me they don't know what's causing this issue and the truck hasn't been fixed. I'll let the truck sit a few days and check engine light is gone and it will drive normal until the issues pops up again. I just don't know what to do about issue and have lost hope nobody seems to know what's causing thr issue. I have videos of this happening multiple times and I show to shops and they are just im awe and can't figure out what is happening. This happened to me yesterday 4/25/25 and while driving the truck started to show all lights on dash and immediately put itself into park while I was driving about 20 mph. Turned the truck off and started it back on again and got the service shifter message and drove home slowly and truck sat in driveway. I've taken in the truck multiple times and nobody seems to know what is causing the issue and I'm tired of spending money things they believe it to be. Any help would be greatly appreciated as we are starting to lose hope on this vehicle and are thinking about letting get repossessed as it's not useful to us if it can't be fixed

Filed Jan 26, 2025 · Brakes, Driver assistance · KS

ABS module/hcu failure Jan 13, 2025. No indication of problem prior to failure. When failure occurred, vehicle was traveling around curve in road at 50 mph when all warning lights on dash lit, loss of power steering, engine shutdown, loss of power brakes. Vehicle had to be towed home then to dealer (Davis Moore Ram Wichita Ks). Dealer diagnosed as ABS module with possible HCU failure. Told by dealer no parts available for repair, I confirmed with on-line search with other dealers. ABS Module Part # 68728132AA is not being made available to any dealers (backordered) for the repair. FCA is calling it under review, has been years for many people who still have no fix. Dealer had me prepay for part.

Filed Oct 29, 2023 · Transmission · IL

Transfer case has failed per dealer inspection and diagnostics. Several lights turned on. Burning smell in/outside of vehicle. Vehicle will jerk from time to time. Parts are apparently on back order for several weeks and I have been told the vehicle is drivable even though transfer case issues / failures can be a serious safety issue.

Filed Apr 24, 2022 · Electrical · CA

Truck goes into limo mode randomly then stalls out. Freeway, streets, stopping, idling. All lights come on and throttle warning text shows on display.

Filed Jun 15, 2021 · Acceleration, Electrical · FL

Check engine on then off, lights all dash warning lights on