2021 Ram 1500 lights problems

Filed Jul 22, 2026 · Lights · 147,000 miles · TN

The contact owns a 2021 RAM 1500. The contact stated that while driving on several occasions at various speeds, the high beam headlights failed to illuminate while the button was depressed. The vehicle was taken to the dealer and was diagnosed and determined that the CSSM needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 147,000.

Filed Jan 16, 2026 · Electrical, Lights · CT

Alt/Gen failure stopped the truck in the middle of an intersection No transmission power steering lights. Had to walk back home to charge the battery in a driving rain storm leaving the truck in the intersection.

Filed Aug 4, 2025 · Lights · GA

When the turn signal bar is in the neutral position, the right turn signal stays on. When the turn signal bar is in the left position, the right turn signal turns off, but the left turn signal stays off. This makes it impossible to signal left, and often causes the right turn signal to come on, which can be misleading to other drivers.

Filed Jul 30, 2025 · Electrical, Lights · NY

Went to start the vehicle with the key fob and the vehicle would not start. Had it towed to ram dealership and was told that the RF hub module needed to be replaced due to being damaged from water at leaked in from the rear window. Upon researching online forums, this seems to be an ongoing problem for this making model because of where the module is located. If there is not already in the works, there should be because this will continue to happen, especially where it rains a lot.

Filed May 29, 2025 · Electrical, Lights · MN

After a simple battery replacement, the entire infotainment system and computer for the vehicle crashed. Safety systems and other safety systems for the vehicle connected to the main computer can no longer be controlled, including parking sensors and other equipment and the battery continues to go dead. Many other owners are having the same issue.

Filed Apr 15, 2025 · Engine, Lights · 59,700 miles · GA

The contact owns a 2021 Ram 1500. The contact stated there was rainwater leaking into the rear passenger’s side cabin of the vehicle. The vehicle was taken to the local dealer, who replaced the third brake light and applied sealant; however, the leak persisted. The contact was informed by the dealer that the leak failure may be caused by a faulty frame or window. No further information was available. The contact stated that while operating the vehicle, there was a ticking sound coming from the engine, and while at the dealer the contact was informed that the exhaust manifold was faulty and needed to be replaced. The vehicle was not yet repaired. The contact was informed by an independent mechanic that the bolts inside the exhaust manifold were inadequate and were prone to failure. The manufacturer was not notified of the failure. The failure mileage was 59,700. The VIN was not available.

Filed Feb 17, 2025 · Lights, Steering · MN

Left hand turn single will not cancel/turn off. I see that there was a recall on this but my truck was/in not part of it

Filed Oct 8, 2024 · Body, Lights · 29,300 miles · PA

The contact owns a 2021 Ram 1500. The contact stated that there was water leaking into the cabin of the vehicle near the windshield on the upper left and right corners. The third brake light on the rear windshield had moisture inside the housing, causing the leak into the cabin of the vehicle. The contact noticed the floorboard was wet. The vehicle had not been taken to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was made aware of the failure and opened a case. The manufacturer referred the contact to the federal safety agency Hotline to file a complaint. The failure mileage was 29,300.

Filed Jan 26, 2024 · Driver assistance, Electrical · GA

The software shut down all of the systems control. Nothing can be controlled. It locks the doors windows side boards panaramic sunroof speed denominator turns the heat on can’t turn it off.tailgate opens all of this happens around 15 minutes after it has been turned on. I complained about it several times before took it in they replaced the radio. It’s currently at the dealership to do a dainostic evaluation

Filed Dec 6, 2023 · Lights · FL

Turn signal does not turn off after making a turn. It is on the left turn signal. You can make a turn but the light still stays on. After a while you get the notification on the dash that your turn signals on