2020 NISSAN ALTIMA Power Train Problems

Many times while I'm driving, I feel a jerky motion. when I am at a stop light, and proceed to hit the accelerator, it will not pick up. I have lost power, the car will jerk while I'm driving. The RPM will rave go up. It's very dangerous because I can be driving and the engine will lose or reduced power. I get a whining sound, like my transmission, is gonna go out.

Description of the Problem: For the past three years, my vehicle has experienced intermittent and sudden loss of power while driving, including on the highway. The issue is ongoing and has not been resolved despite having the throttle body replaced three separate times, totaling approximately $4,500 in repairs. Each replacement has resulted in the exact same malfunction: the car enters limp mode, drastically reducing power, which is especially dangerous when my children are in the vehicle. Component/Inspection: The issue appears to involve the throttle body and possibly the CVT transmission or related electrical system. The component has been replaced multiple times and is available for inspection if needed. Safety Risk: This malfunction puts my safety and the safety of my passengers at significant risk, particularly when driving at high speeds or in heavy traffic. The car's sudden loss of power makes it difficult to accelerate or maintain speed, which could easily lead to a collision/serious injury. Problem Reproduced/Confirmed: Yes. The problem has been witnessed and confirmed by Midas of Palm Bay, FL and Nissan of Melbourne, FL. Manufacturer Involvement: I reached out to Nissan, but they refused to assist with the repairs or offer any support. Warning Signs/Symptoms: Before the failure, the check engine light comes on, followed by a warning message that reads “Engine Malfunction.” Immediately after, the vehicle loses power and cannot accelerate normally.

While driving my vehicle on the freeway, the car suddenly went into limp mode then a few seconds later, the Warning Light appeared showing CVT failure alert. The car has 111,000 miles. This should be an issue that Nissan need to be responsible 100%.

While accelerating from a complete stop, the car stalled with tires, powertrain, and steering wheel all locked. For 15 seconds, the steering wheel, tires, and car was unable to be manipulated. During acceleration, the speed was less than 15mph when it came to an abrupt stop. Another car behind me almost hit me when my car came to a stop. Car was just serviced for another warranty issue a few months ago by Nissan dealership.

Engine failed prematurly with less than 40k miles. All service was completed in a timely fashion. Nissan is taking a long time to get back to me with what next steps are. They are still investigating after 10 days. Pls help.

Unpredictably vehicle acceleration is delayed by approximately 3-4 seconds. Car then proceeds to take off after transmission kicks in. I almost got hit by a semi during a left turn. And similar near miss incidents have occurred. Car also fails to accelerate in a predictable manner when needed rpm goes up but vehicle will stall/hesitate. The vehicle is under warranty and has been to the dealer 3 times. They will not perform any maintenance on the vehicle. Saying it needs to be replicated in person. The Issue is not easily replicated, but when the issue presents itself, it poses a great safety risk to occupants in the vehicle and all drivers/pedestrians on the road around the vehicle. This seems to be a known issue by Nissan but they fail to implement a recall or any other corrective action. I can provide invoices/Statements of work but will have to retrieve them from the dealer. I also have video evidence of the issues occurring. Dealer has seen the videos but refuses to repair, replace, or recompensate for the issues listed above off the videos alone.

I bought a used (7,000 miles) 2020 Nissan Altima 2.5 SV. Bought the car on January (18-19th) 2022 with a clean Car Fax. Then, on August 12, 2022 at 17,500 approximate miles the transmission failed. I was driving and suddenly the engine light came on and the car was being strange. Slight shaking, vibration, and delayed acceleration plus a few other details I cannot recall. I immediately went to the dealership since I was nearby and I did not feel that the car was safe to drive. Then I left it there for over a month (all with no loaner vehicle because they had none) and they said they needed to get me a new transmission. Needing a new transmission so soon, is not normal. The dealership even said this, but also said it is unfortunately an issue they see with their CVT transmissions. I had no prior symptoms, and this was very sudden. I had even called them to let them know I was on the way, and they said if I was not close-by that I should tow the car in because it might not be safe. It could have caused an accident if I had driven for longer, so I consider myeslf lucky and hope that other people do not have the same expierence.

Transmission went out at 145k miles

Transmissions seem to jerk a lot when slowing down and picking up speed again, also all 4 door locks have gave out being unable to lock or unlock the doors using the bottom or key, this is a hazard especially if you have children sitting in the back seats

What component or system failed or malfunctioned and is available for inspection upon request? On June 6th, the vehicle started losing power when accelerating, happened at night when driving back home, and scared me because there were no lights indicating any issues. The following day, less than a mile from the dealership, all the dashboard lights turned on, the vehicle lost complete power, and then i turned vehicle off and try to turn it back on but it didn't started. I called a tow truck and left it at the dealer. They informed me that they would provide me with the reason for the failure by the end of the afternoon. I was later informed by the dealership that there was an electrical problem with the transmission system. The system failure was related to a power train not getting communication due to a broken/damage wire harness that was close to the left side powertrain/engine mount. The harness was damaged because of the engine mount bolts broke and metal part of the mount cut part of the harness, creating an electrical short to the powertrain system as seen in the attached photos. This kind of short can definitely create heat into the harness that could have gotten my car to catch fire. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the same dealer informed me about the damage, and they themselves were puzzled because they couldn't find an explanation for how this could happen, but they did not take any ownership by the fact that that defective engine mount could have had me into a major accident if I was driving in the highway. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? All the work was carried out at the dealership itself. And I don't think that the dealership send any notification to the manufacturer about the early failure of such an important component but going through different mechanics shops they all share the same opinion that the......

MY BATTERY COUGHT FIRE AS I WAS DRIVING ALL OF A SUDDEN

The contact owns a 2020 Nissan Altima. The contact stated while driving from a complete stop, the vehicle would hesitate and shudder. There were no warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed that no issues were found; however, the failure reoccurred. Additionally, the contact stated while the vehicle was parked, she shifted into drive(D) and depressed the accelerator pedal however, the vehicle failed to respond. The contact was unable to drive the vehicle after several attempts. The vehicle was towed to the dealer where it was diagnosed that the transmission had failed. The dealer informed the contact that the vehicle would be repaired at her own expense. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the vehicle could not be repaired under the power train warranty due to the mileage. The failure mileage was approximately 59,000. The VIN was not available.

Mileage: 59,000

2020 NISSAN ALTIMA. CONSUMER WRITES IN REGARDS TO TRANSMISSION FAILURE. THE CONSUMER STATED THE VEHICLE WOULD LUNGE FORWARD. THE DEALER COULD NOT DUPLICATE THE FAILURE.

PARKED THE CAR FOR ROUGHLY 10 MINUTES. CAME BACK AND STARTED CAR WITH ALL LIGHTS ON DASH ILLUMINATED. HARD TO DRIVE, HARD TO STEER AND COULD NOT TELL HOW FAST VEHICLE WAS MOVING AS SPEEDOMETER DIDN'T WORK. THIS HAS HAPPENED BEFORE, HAD IT TAKEN TO NISSAN DEALER. ADVISED THAT THEY COULDN'T DUPLICATE THE LIGHTS ISSUES AFTER IT SAT FOR 3 DAYS BEFORE "RESETTING" ITSELF.

Mileage: 14,500

DURING COLD TEMPERATURES THE CAR ACCELERATES POORLY, ENGINE RPM IS UNUSUAL. AT LEAST ONE INSTANCE OF THE ENGINE WARNING LIGHT ILLUMINATES WITH A "SERVICE NOW" MESSAGE DISPLAYED. IN ALL CASES THE VEHICLE ENGINE WAS RUNNING, IN (SLOW) MOTION, AND ON A CITY STREET AND ONE INCIDENT ON A HIGHWAY GOING STRAIGHT AHEAD. A SERVICE DEPARTMENT OF A NISSAN DEALER WAS CONTACTED AND THEY STATED THAT THEY HAVE RECEIVED MULTIPLE COMPLAINTS OF THIS NATURE ABOUT THIS CALL YEAR AND MODEL.

Mileage: 10,976