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2020 Ram 1500 transmission complaints

Page 2 of 3: complaints 11 to 40 of 63, newest first, as owners wrote them.

See the summary of 2020 Ram 1500 transmission problems: which part fails, at what mileage and related recalls.

Filed Dec 20, 2025 · Engine, Transmission · MO

My 2020 Ram 1500 exhaust manifold leak often causes a loud ticking noise, especially on startup, due to broken bolts or a cracked manifold.

Filed Nov 5, 2025 · Transmission · NJ

Please see attachment:

Filed Oct 21, 2025 · Electrical, Engine · TX

The mgu/generator went out and left me stranded due to battery failure. I had no steering or power brakes. Everything electrical failed. Have been waiting for new mgu for 2 months.

Filed Oct 15, 2025 · Engine, Transmission · 62,000 miles · NJ

The contact owns a 2020 Ram 1500. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning lights were illuminated. In addition, the contact stated that there was an abnormal sound coming from the engine. The contact was unable to pull over to the side of the road. While the vehicle was still on the road, the contact shifted to park(P) and then back to drive(D), and the vehicle returned to normal functionality. However, the contact stated that the failure had occurred six times. The contact stated that on a separate occasion, while driving at an undisclosed speed, there was an abnormal sound coming from the engine. In addition, the contact stated that while driving at an undisclosed speed, the gear knob independently shifted gears. The contact stated that the gear knob was in drive(D) and then independently shifted to park(P). It was unknown if any warning lights were illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. Most recently, after reversing out of the driveway and then driving forward, the front passenger’s side mirror independently moved inwards. The failure obstructed the driver's visibility and prevented the driver from safely operating the vehicle. The contact pulled over to the side of the road and manually pulled the front passenger’s side mirror outward. The manufacturer was not made aware of the failure. The failure mileage was approximately 62,000.

Filed Sep 22, 2025 · Transmission · NC

Automatikgetriebe Schalthebel auf " P " verriegelt. Schalthebel kann man nicht aus der Parkposition lösen. Seit 16,08,2025 steht Auto in der Werkstatt.

Filed Sep 19, 2025 · Electrical, Engine · OH

My 2020 Ram 1500 etorque had a major breakdown. My husband was driving down the highway in a construction zone when he lost power steering, power brakes and then the vehicle totally shut down. He had to steer it to the side of the highway, barely making it. We had the vehicle towed to the dealership who ran diagnostics on it and told us the Mechanical Generator Unit (MGU) needed to be replaced. The major issue: the MGU could not be found anywhere in the US. They wasn't able to order / backorder from anywhere. They said it could take months or longer to get the part. We couldn't go indefinitely without our truck so the dealer recommended we trade it in. That was our only option so that was what we were forced to do. We did not want another vehicle!! Ours was paid off.

Filed Aug 15, 2025 · Electrical, Engine · TX

RAM has a bad design on MGU's, new ones and old ones are failing, whining, causing engine spudder and no movement at times. Can't purchase one because RAM has them on "Engineering HOLD". Therefore they no they have an issue, not offer a replacement. I have been advised if they become available I'm looking at $2,000 for an alternator. That is insane.

Filed Jul 16, 2025 · Electrical, Engine · GA

I am writing to report a serious and dangerous issue with my 2020 Ram 1500. The vehicle has been randomly shutting off while I am driving, often accompanied by a strange acceleration or revving sound just before the engine dies. This has occurred multiple times without warning, creating an extremely unsafe driving situation. The issue happens at random and cannot be easily reproduced on demand, which I understand may make it difficult to diagnose. However, it is important to emphasize that this is a major safety risk that could easily result in a crash or injury.

Filed Apr 27, 2025 · Transmission · WA

Have a whirring, whining noise and at my Feb 2025 service, was told it was the e-torque assembly bearing and it was loose. Part is on back order for months since this is a common issue and will cost over $1400 for part alone. Was told not covered under warranty but believe that the dealership is wrong BUT am reading it was recalled in the 2021 RAM 1500 but I am having same issue with my 2020 and I am reading I am not alone.

Filed Apr 8, 2025 · Transmission · MT

The motor generator has effected the ess (engine start stop) system and at a stop it does not restart the vehicle when you let off the brake. It startes and then jumps forward creating a safety hazard if there is a vehicle in front of you or a pedestrian in the crosswalk. This is a concern that seems to happen with this system frequently through web searches that I have seen. My truck is at a dealer now to diagnose the problem with the system.

Filed Apr 3, 2025 · Brakes, Transmission · MI

This is the second time this has happened (03APR25). The first time this occurred, 20JUL25, I had to pay (Bill attached) to have the ABS Module replaced. Today several service lights came on not limited to: Service 4wd, 4wd Trans Case overheat, stabilization system, and the traction control light came on along with the 4wd High light and both the 4wd High and 4wd Low indicator lights were all flashing. When parked the emergency parking brake was automatically set. (break) I have all the documentation from the first occurrence and an additional recall notice (Attached) of which states contact the dealer, whom said that it was not their responsibility. Then I contacted Stellantis recall office, and they said they would get back with me and never have and today most all the sensor faults flashed on the display. The truck locked in 4 high up until I parked it.

Filed Mar 13, 2025 · Electrical, Engine · 74,553 miles · OR

The contact owns a 2020 Ram 1500. The contact stated while driving at approximately 60 MPH, the check engine warning light and power train warning lights illuminated. The contact stated that the vehicle was losing motive power. The contact depressed the accelerator pedal; however, the vehicle failed to respond as needed. The contact stated that the steering wheel was difficult to turn to the left or right, and while pulling off the roadway the vehicle stalled. The contact was unable to restart the vehicle. The contact stated that there were several unknown warning lights illuminated while attempting to restart the vehicle. The contact had the vehicle towed to a dealer. The dealer diagnosed the vehicle and determined that the E-Torque Alternator had failed and needed to be replaced; however, the part to repair the vehicle was on a national backorder. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 74,553.

Filed Mar 10, 2025 · Transmission · 62,400 miles · NY

The contact owns a 2020 Ram 1500. The contact stated while driving with the cruise control feature enabled at 70 MPH, the contact noticed a loud banging sound. The contact noticed in the rearview mirror that large parts were flying from underneath the rear of the vehicle. The contact drove the vehicle to the shoulder of the road. The contact stated that the vehicle independently rolled backward. The contact activated the parking brake to stop the vehicle. The vehicle was towed to the dealer where it was diagnosed with a failed drive shaft and damaged rear end. The contact was informed that the driveshaft and the rear of the vehicle needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 62,400.

Filed Mar 10, 2025 · Electrical, Engine · MI

My 2020 Ram 1500 5.7L e-Torque started making a noise. I then received a "Battery" indicator Light, then received an "Engine" indicator light. I was losing voltage on my battery. The truck is now at the Dealership. The alternator has failed (87k miles). No one has the part. It's been on back order since November 2024. Online research indicates that over 3000 are on back order. I can't even place an order with Mopar (Genuine Ram Parts Supplier). I'm also told that the repair will be $2300 - seems like a lot for an alternator that you can't get that can be replace in about an hour.

Filed Feb 28, 2025 · Electrical, Engine · 80,000 miles · KY

The contact owns a 2020 Ram 1500. The contact stated that after driving 35-45 MPH, the contact approached a stop sign, and the vehicle stalled. The vehicle failed to restart after pushing the Push-to-Start button. The traction control warning light was illuminated. Additionally, the key fob not recognized message was displayed. The vehicle was towed to an independent mechanic, who determined that the failure was due to the relay module and PCM and referred the contact to the local dealer. The vehicle was towed to the local dealer, where it was diagnosed and determined that the PCM needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, opened a case, but no additional assistance was provided. The failure mileage was approximately 80,000.

Filed Feb 24, 2025 · Transmission · 140,000 miles · LA

The contact owns a 2020 Ram 1500. The contact stated while driving on the highway at 15 MPH, the vehicle experienced a loss of automotive power and the transmission unexpectedly downshifted from 4th to 1st gear. The contact stated that the "Shift to Park, and then Start" message was displayed. No warning lights were illuminated. The contact stated that the vehicle shut off and coasted to a stop. The contact parked the vehicle on the side of the highway to restart the vehicle and continued driving. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.

Filed Feb 4, 2025 · Electrical, Transmission · MA

When slowing down for a stop the transmission will shift into neutral and a warning will pop up on display “shift to park then desired gear” this is happing on my 2020 ram and my sons 2019 ram but the dealer says there is no fix. I checked online and it looks like it’s happening a lot.

Filed Jan 22, 2025 · Transmission · OH

As with previous recall issued 66A for 1500 trucks from 2014-2019, my vehicle is with the dealer for the same known issue for the 2020 model 3.0 ecodiesel for repair of the tone wheel and crankshaft sensor failure. Tone wheel and crankshaft sensor failed while on highway presenting same know safety risk as previous truck models.

Filed Jan 19, 2025 · Engine, Transmission · NY

I noticed an oil leak under the truck a few weeks after getting the oil changed at the dealership. I took it back and had them investigate. They advised me I needed to replace the oil filter housing assembly, to the tune of $1,000. As I did research i found d this this is a widespread common problem and is known. Faulty design of a plastic part. For this to be such a common issue and poor design (that could cause catastrophic engone failure resulting in accidents or fires) and not to be recalled and or covered is insane. It's such a known issue that aftermarket parts makers have made a version that is all aluminum to prevent the issue. RAM should be paying for the repair, not me.

Filed Dec 12, 2024 · Brakes, Electrical · GA

Brake warning lamp is on for low fluid but fluid is okay. Electronic stability control not functioning.

Filed Dec 12, 2024 · Electrical, Transmission · 107,000 miles · NH

The contact owns a 2020 Ram 1500. The contact that the vehicle was taken to the dealer due to an electrical failure. The contact stated that the 12-Volt battery had been replaced three times, and the taillight bulbs and front headlight low beam bulbs were replaced several times. The contact stated that when the vehicle was diagnosed by the dealer for the electrical failure, the contact was informed that the front differential seal had failed and was allowing water to leak into the differential, causing the differential to rust. The vehicle was not yet repaired. The manufacturer was informed of the failure. The failure mileage was approximately 107,000.

Filed Dec 1, 2024 · Acceleration, Transmission · IL

The truck has an issue with 3rd gear. It wants to jolt forward and if it doesn’t catch speed it goes into “limp” mode. It’s a safety feature where it goes as fast as 2nd gear needing service to Electronic throttle body, stop/start system, and electronic stability control.

Filed Nov 24, 2024 · Engine, Fuel system · IN

Power Distribution Center/Relay box failure. Contacts in box melted for ASD Relay. Incident occurred while driving on the highway at 65mph. Vehicle without warning had power loss in accelerator, and started downshifting gears. Dash immediately said “park and restart required.” Attempting to start engine, vehicle would crank/no start. After several attempts, vehicle restarted and resumed normal driving until “park and restart required” happened again. After vehicle shut down multiple times on highway, I was able to make it home and diagnose problem. I checked the fuses and relays on the PDC and found ASD relay intact with no burn or scorch marks on contacts. However, the socket is missing contacts within the pdc. I reproduced said problem by moving the ASD relay with vehicle running. There are no warning lamps, messages, or codes to show any kind of failure.

Filed Aug 8, 2024 · Transmission · PA

Has just over 80,000 miles and the Ram dealer is telling me it need a new transmission. Code P0733000 3rd gear ratio issue. Will be driving it will hard shift into 3rd gear and then get stuck in 3rd until I stop and turn the truck on and off. When I do that it works fine. Check engine light comes on for a couple starts then goes off.

Filed May 13, 2024 · Transmission · 20,000 miles · GA

The contact's husband owns a 2020 Ram 1500. The contact stated that the vehicle failed to respond when shifted into reverse(R). Additionally, the rearview camera was inoperable. There was no warning light illuminated. The vehicle was taken to the dealer, where it was determined that the transmission needed to be replaced under the federal safety agency Campaign Number: 23V301000 (Power Train); however, the part to do the recall repair was not yet available. The vehicle was not repaired and remained at the dealer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure. The failure mileage was approximately 20,000.

Filed Apr 24, 2024 · Airbags, Engine · FL

The contact owns a 2020 Ram 1500. The contact stated while driving 40-45 MPH and depressing the accelerator pedal, the vehicle failed to respond, jerked and stalled. The contact was able to pull to the side of the road. The contact stated that the vehicle was able to restart, but sputtered. The contact stated that he turned off and restarted the vehicle, and continued driving; however, the vehicle failed to exceed 40 MPH. The vehicle was taken to the dealer, where it was determined that the turbocharger had failed. The dealer informed the contact that the vehicle was repaired; however, the failure recurred while driving. The vehicle was taken back to the dealer, where the turbocharger and the harness were replaced. Additionally, the contact stated while driving and depressing the accelerator pedal, the vehicle hesitated to respond. The check engine warning light and other unknown warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed that the Occupant Classification System (OCS) sensor and the electronic throttle body had failed. An unknown repair was performed; however, the failure persisted. The vehicle was taken back to the dealer, where the OCS sensor and the electronic throttle body were replaced. Additionally, there was water leaking inside the vehicle through the third brake light, and the dealer repaired the third brake light. The contact stated that the check engine warning light later illuminated. The vehicle was taken back to the dealer, where it was determined that the Ram air dam system had failed. The dealer cleared the codes; however, the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure and a case was opened; however, no further assistance was provided. The failure mileage was approximately 34,115.

Filed Mar 6, 2024 · Engine, Transmission · FL

I have a 2020 Dodge Ram that has 75,000 miles on it. It has already broke down requiring a new transmission ( Jan of 2023 at 61,349 miles) and on [XXX] at 83,000 miles I, again, broke down and found it to be a valve spring. I have inquired as to the frequency of these occurrences in other Rams and a was told neither one of these occurrences should have happened. I jumped the hoops of the warranty and have put out almost $1,000 for the warranty company to "inspect" the engine, valve spring & tranny items that I should not have had to deal with in the first place. At first, the warranty company was willing to discuss possible retribution of some sort given the rarity of the break downs that occurred. I had a caseworker and now I cannot get anyone on the phone to even discuss this with any longer. Always being told "In a meeting", "Not available". With my last call being today and told SOMEONE was going to call. I have received emails noting "it is being investigated" and also told someone would reach out. NOW I have developed anxiety over this truck as, I travel. I'm terrified that I will be stuck in the middle of no where in the middle of the night. Both occurrences happened at night while alone! I am a [XXX]! Perhaps that's why ? I have been without a vehicle since that time and even the auto repair place had a very hard time in getting warranty company to pay. Truck is home now but now Im afraid to drive it anywhere. This was my dream truck and Im heartbroken at the total disrespect that has occurred for my safety and for anyone else who has had to go through this - I do have invoices but it wouldn't let me download them. I can send them via email. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 15, 2024 · Transmission · AR

Issues with the ABS system and also showing many defects with controller causing problems in the CV axle which had to be replaced as well

Filed Dec 20, 2023 · Suspension, Transmission · CO

While traveling down C470 Eastbound my truck experienced some type of mechanical failure. While on the corner above the bridge for Wadsworth Avenue I felt a sudden loss of control with the truck pulling to the right side of the highway. I immediately took action to pull the truck off the highway while also wrestling for control of the steering to keep the truck from running into the barrier and off the bridge. I was able to bring the truck to a stop just following the bridge (About 100ft). Upon inspection I found the right front tire had folded under itself. It seemed that the upper control arm on the vehicle snapped, pulling out the drive shaft in the process and damaging items like the steering linkage, brakes, tire, brakeline, etc. Dealership diagnosis was: Found right front upper ball joint separated causing excessive damage to the front end components. Only additional work that has been done to the truck was by MOPAR with their 2 inch lift kit, certified by Fiat Chrysler and Mopar for this specific truck. Kit number 77072424 SUSP KIT-LIFT. Dealership did inspection of vehicle 2 days prior to incident with no issues found. I was not able to attach pictures and PDFs to this form

Filed Dec 4, 2023 · Electrical, Transmission · PA

Frequent and expensive starter failure and replacement rate for Hemi V8 equipped trucks.

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