Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Ram 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2020 Ram 1500 Promaster. The contact stated that after parking and turning the vehicle off, he left it for approximately 10 minutes. The vehicle spontaneously caught fire. The contact was alerted that his vehicle was on fire. The contact noticed that the passenger-side headlight had smoke and flames four feet high. There were no warning lights illuminated prior to the failure. The contact and a bystander extinguished the fire. There were no reported injuries. A call was made to 911 emergency services regarding the incident. The fire and police departments were on the scene. The vehicle was towed to an independent mechanic who determined the failure was due to the wire harness and headlight assembly. A claim was submitted to the insurance company. The local dealer was not contacted. The vehicle was not diagnosed or repaired. …
VEHICLE IS MISSING TAILGATE AJAR WARNING LIGHT. ACCORDING TO BUILD REPORT ITS LISTED UNDER VIN AND IS IN THE 2020 RAM 1500 MANUAL. I NOTICED THIS AFTER I PULLED AWAY WITH TAILGATE OPEN. REALIZED IT SHOULD HAVE A WARNING LIGHT AND BEGAN TO INVESTIGATE. DEALER SAYS I DON'T HAVE THIS, BUT CUSTOMER SERVICE SAYS I HAVE IT AND PLUS ITS IN THE MANUAL. Consumer like to add, he noticed staining to headliner from water leak. This should be a safety recall since it can be effecting the drivability of vehicle and safety of vehicle occupants. Water is possibly penetrating thru roof antenna, rear window and through vehicle third light. Water started leaking through the air bag area, seat belt tensioners, car speakers and coming in contact with electrical components of vehicle. Carpet and insulation is wet caused by this leaking.
The contact owns a 2020 Ram 1500. The contact stated that he became aware that water had leaked into the interior of the vehicle through the rear windshield. The vehicle was taken to the dealer and diagnosed with a possible brake light or antenna failure. The rear window glass was replaced. The contact stated that the failure reoccurred twice, and the rear window glass was replaced; however, the failure persisted. The vehicle was taken to the same dealer for rear window replacement. The contact stated that the rear window glass had been replaced by two local dealers; however, the failure persisted. The manufacturer was made aware of the failure but provided no assistance other than replacing the glass. The failure mileage was approximately 16,800.
The contact owns a 2020 Ram 1500. The contact stated while driving 10 MPH and approaching a stop, the left turn signal failed to function as needed. There was no warning light illuminated. The contact stated that the vehicle made a loud sound as if the ABS had been activated. The contact stated that while attempting to use the turn signal to the left, the right turn signal was erroneously activated. The vehicle was not taken to be diagnosed. The local dealer was contacted; however, the vehicle was not repaired because the vehicle was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.
The contact owns a 2020 Ram 1500. The contact stated that while driving on the freeway at approximately 65 MPH, the turn signals activated without driver input and would not turn off. Additionally, an unidentified audible alert sounded during the failure. The failure recurred multiple times. The contact researched the failure and identified similar complaints involving other 2020 Ram 1500 vehicles. A local dealer was contacted and informed the contact no recalls applied to the vehicle, while advising of diagnostic fees. The failure mileage was approximately 61,000.
What component or system failed or malfunctioned, and is it available for inspection upon request? Turn signal indicator has malfunctioned. When the left turn signal indicator is set, it will not reset after making a full left turn (90 degree). Also the left turn signal will not stop after putting the turn signal lever back into the middle position. The only way to disable to turn signal is to put the turn signal lever into the right turn indicator position and in this position the right turn indicator no longer works. After making a right hand turn the turn indicator lever will reset and make the left blinker come on automatically and stay on. How was your safety or the safety of others put at risk? Being unable use my turn signal correctly has caused people to almost crash into me. Has the problem been reproduced or confirmed by a dealer or independent service center? …
On Monday, October 10, 2023, I started my truck in the morning when the temperature was 60-65 degrees. The truck turned the rear defroster on and after 10 minutes I put my two boys in the backseat and smelt a burning smell. There was nothing smoking, so I told myself I would look at it once I got back from dropping them off. I pulled out of my driveway and within a minute my back window shattered above my 3 month old. I took it to the Dodge/Ram dealership and they said based on their inspection the third brake light was leaking and water got into/on the window and when the rear defroster turned on it shattered the window. They said it is not covered under warranty even though the main cause was a manufacture defect with the the third brake light leaking water into the vehicle. So this repair is going to cost me $1,500 because of the leak. …
My 2020 Ram 1500 truck's dash lights, instrument panel, and radio screen randomly flash bright then dark, over and over. It is very distracting and a potential safety hazard especially when driving at night as the flashing changes quickly by going from bright to dark and back and forth. This lighting or electrical issue is very distracting while driving. This occurs randomly while driving, while stopped, and while driving at different speeds. This issue typically occurs on a daily basis, and happens more often on some days than others. I took the truck into the dealer and they had my truck for a week, but could not determine or fix the problem. There are no vehicle error codes showing in the computer, and I have shown them several video recordings of the flashing lighting that has occurred. …
UNKNOWN GOT IN THE TRUCK, started it and it idled for about one minute, then every single light or electronic started flashing, with the pace of the hazard lights, which the hazard lights stayed on, no matter how many times I pushed the hazard buttons, and the horn was blowing lightly also, about 2 minutes of this , I turned the truck off, came out the next day and it was completely dead, no electricity at all! Charged battery( which is new by the way) and it fired right up! But now it's extremely sluggish, missing and jerking, the electronics in these are garbage! Looks great but who wants something that is advertised Wi-Fi available!! Ha not on the 2020 models!!! I've got the big screen! Call att, they say there's an issue with ram, so I'm not happy! And this the only vehicle I have to transport my family
The frame of the back window is cracking causing water to leak into the cab. After talking to the dealership they are saying this is happening with RAM Trucks that has not been recalled. He stated that the control module is located under the rear seat which is getting wet and causing problems to the trun signals, starting of the truck and lighting to malfunction which could cause an accident. There is also airbags located on the rear roof that could cause them not to go off. This repair is going to be between 2000 and 5000 bucks depending on the damage. I believe this should be a safety recall due to the chance of someone's life being lost.
Headlight complaints in other 1500 years
Frequently asked questions
How common are headlight problems on the 2020 Ram 1500?
NHTSA has 21 complaints about the lights of the 2020 Ram 1500, 3% of the model year's 640 complaints. The component named most often is turn signal › switch (2 mentions).
Is there a recall for 2020 Ram 1500 headlight problems?
No. NHTSA lists no lights recall for the 2020 Ram 1500, though it has 14 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Ram 1500 headlight problems start?
Half of the complaints with a recorded mileage happened before about 17,000 miles, and 63% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to lights problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.