2020 Nissan Altima Engine Problems

Message popped up while driving saying “engine malfunction power reduced service now”. Pairs with the check engine light coming on

I received a Recall # R25B1 for my Nissan Altima 2020. I visited my local Nissan Dealer in Chelmsford, MA, on December 30, 2025. They explained that they saw an issue and that I would need a new engine. There are 32,000 miles on this vehicle. They began the process but were then told by Nissan Corporate that it did not meet the requirements of the recall, and they would not be replacing it. I am in the process of heading on a long driving trip and am very concerned with how this was handled. Nissan Customer Relations explained it wasn't covered under warranty, which has nothing to do with a recall. I am very frustrated and disappointed in Nissan. The mechanics at Nissan in Chelmsford took photos and sent them to Nissan, and they still denied it. With the car only having 32000 miles on it, it was probably if anything at the beginning of the failure. Please advise on going forward.

Need a new engine / gasket confirmed by pep boys. Been at the dealership a lot more than usual lately and they kept telling me everything is fine with my vehicle

The contact owns a 2020 Nissan Altima. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and a case was filed. The contact had not experienced a failure.

I’ve received notice that my car is subject to engine failure. I’m afraid to drive it and I need this issue fixed ASAP. What should I do?

I am the owner of a 2020 Nissan Altima (VIN: [XXX] ), and I am reaching out to formally report a serious, ongoing issue with the vehicle’s engine performance. I have paid out of pocket for repairs, yet the issue persists, resulting in continuous inconvenience, emotional distress, missed work, and significant financial strain. After researching, I believed my vehicle might have been subject to a recent recall due to widespread reports of engine failure and related concerns in this model. However, the dealership denied any open recalls related to my VIN. The conflicting information, combined with the unresolved mechanical failure, has caused immense frustration. I am requesting a full review of this matter, including whether this issue qualifies under any known recalls, customer service campaigns, or warranty extensions. I am prepared to escalate this issue legally if necessary. Please acknowledge this complaint and inform me of next steps. Sincerely, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Nissan Altima. The contact stated that while driving at 55 MPH, the vehicle stalled in the middle of the expressway. The contact turned off and restarted the vehicle, and the engine started knocking significantly. There was no warning light illuminated. The contact was able to slowly pull over to the side of the road. The vehicle was towed to the residence. The vehicle was later driven to the dealer, where it was test-driven. The dealer informed the contact that there was smoke coming from the vehicle, and the engine needed to be replaced. The vehicle was not repaired and remained at the dealer. The contact related the failure to NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure, and a case was filed. The failure mileage was unknown.

The contact owns a 2020 Nissan Altima. The contact received notification of NHTSA Campaign Number: 25V437000 (ENGINE AND ENGINE COOLING). The local dealers were contacted; however, the recall information failed to show while entering the VIN information. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Unknown. The engine started have overheating issues but never was ran in the overheated zone. We took the car to the dealer and was told the head was cracked. We questioned how that was possible if we never ran it in the overheated zone. We were told they did not know but that several other Customers in the last few weeks have had the same issue. Then we heard about the recall but was told our car was not affected. It needs to be reevaluated. We never ran the car hot.

My check engine light comes on & the it will go off then back on again…

On the way to work a warning error message came across the dash board saying “ Engine Malfunction Power reduced. Service now” then is turned off. The engine light didn’t come on until a month later saying P0101. P0101 was fixed but the engine malfunction still comes and goes.

My car is said malfunction Loss of engine power

Since August of 2024 I noticed that my vehicle had strange noises coming from the engine and I was having a coolant loss but did not see anything on the ground. I then took my car to Nissan in New Orleans and they were recommending that I replace my entire engine. I’m not sure of their findings but still to this moment my vehicle still makes the same noise from the engine and still is having a coolant loss. I did notice that the coolant is overfilling in the reservoir tank and leaks out.

RECEIVED ENGINE MALFUNCTION REDUCED POWER SERVICE NOW MESSAGE WHILE DRIVING (RECEIVED MESSAGE 6 TIMES SO FAR). ERROR GOES AWAY WHEN I SHUT CAR OFF AND RESTART IT, NO CODE IS FOUND WHEN SCANNED AT NISSAN DEALERSHIP. CAR SEEMS TO SHIFT WEIRD DURING A STOP AND FEELS LIKE IT RUNS ROUGH BUT NOTHING IS EVER FOUND AT DEALERSHIP TO BE THE CAUSE.

It’s been 2 times that I get the WARNING ️ Sign of Engine Malfunction Power Reduced Service now and at the same time another warning that’s says Malfunction see owners Manual and my car looses it’s power

Vehicle goes into limp mode (shows all engine warring signs flashing ) and my speed goes down to 5-15 miles. This happens instantly and my car will jerk and basically stop where it is at. This is happening when the temp. is below 0 and it is snowing. There is no warring or time to get out of the way of traffic and on the hwy cars are coming up on you. Someone can hit you from behind instantly when this happens. My vehicle has been towed twice to the dealer and i have filed 3 complaints with NIssan consumer care but this is not resolved. All they can do is reset the computer each time. The dealer tells me this is happening all the time but they can not get it do duplicate when they have it . I have 18K miles and this has happened 3 times in total.

The contact owns a 2020 Nissan Altima. The contact stated that the vehicle stalled while in park(P). The contact stated that she was able to restart the vehicle; however, the failure recurred while driving at an undisclosed speed. The contact was able to drive to her destination. The vehicle was taken to the dealer several times; however, the dealer was unable to duplicate the failure. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.

THE ENGINE LIGHT CONSTANTLY COMES ON. HAVE HAD THE SOLENOID VALVE TIMING CONTROL REPLACES TWICE AND ENGINE LIGHT BACK ON FOR THE SAME PROBLEM. I HAVE HAD MY CAR FOR 6 MONTHS AND HAS BEEN IN THE SHOP FREQUENTLY.