2021 Dodge Charger Transmission Problems

Your transmission unexpectedly downshifted and displayed a "Service Transmission" warning message while driving. Later, you noticed smoke coming from the engine and the transmission was overheating. An independent mechanic suggested the head gasket might have failed, which could be causing the transmission to overheat. Getting the transmission and engine properly diagnosed and repaired is critical to prevent further damage.

Your engine warning light came on while driving at 60 MPH, and a mechanic found that sixth gear isn't working properly. The required repair parts were on backorder at the time, so the vehicle couldn't be fixed. The issue occurred at around 66,000 miles. The repair will likely involve replacing or rebuilding internal transmission components to restore sixth gear functionality.

Driving home from work when my vehicle lost control, when trying to steer my steering wheel straight the rear end of my vehicle locked up and ended up in a guard rail , there was nothing in the road or any pedestrian or other cars I have no idea what caused my car to lock up but I don’t know what caused my car to lock up I know when my sales guys first go over my car he didn’t fully mention everything to me I saw my tires pressure at 50 psi in all days didn’t know if that was normal because my car was shipped so I know the dealership is suppose to inspect vehicle to make sure everything is correct to manufacturer specs when vehicle was towed to certificate shop for body and mechanic repairs car sat there 8 months plus when I got the car it was not driving the same and reading a message on the screen service sifter unavailable ever since then my vehicle is unsafe to drive my car now locks up when I do a turn like it get stuck in a gear and when cruising vehicle chocks/hesitated to drive like it was to get stuck in a lock mode . I took it to 2 dodge dealers more then 3 times and can’t duplicate concern and throwing random parts at my car and I’m telling them it’s not the problem also they gave me poor customer service and wish I never bought a car from them .

The issue with the vehicle is inconsistent and delayed power delivery. On numerous occasions, when trying to accelerate quickly in low gears (1 through 3), the vehicle exhibits an obvious restriction and/or lack of thrust. The vehicle does accelerate (sometimes poorly with hesitation) and the RPM's climb, but the power is severely reduced until 4500 RPM, then the power comes on strong without any change in throttle position or gear. The issue can best be described as feeling like you are towing something heavy with a rope, and at 4500 rpm, the rope breaks and the resistance is lifted. I have had it to multiple dealers, I have reproduced it, but both ran full analysis and it is "performing as designed". Both me and the dealer contacted the manufacturer and was told if there are no diagnostic errors, it is fine. There is no code or message. I have found at least 10 other owners of various vehicle models from Chrysler with the same engine and transmission combo that have the same issue. The 5.7 Litre HEMI V8 and the ZF8HP70 8 speed automatic transmission. There is no way to know it is going to happen. One minute it accelerates normally, the next it doesn't. It does not pose imminent danger, but it has put me in a precarious position more than once when entering a highway or pulling out into traffic and not knowing how much acceleration power I am going to have. It reduces confidence in the vehicle because of the inconsistency. The issue did not start occurring until the vehicle reached approx. 2100 miles. I also owned a 2020 version of the car that did the same thing after approx. 4000 miles. I traded it in on the 2021 because I thought there was no way they all ran this way, but apparently they do.