2012 Nissan Altima Powertrain & Transmission Problems

I drove out of town about 40 miles and everything was fine, next day went to leave to come home and immediately noticed high RPMs going about 20MPH. I pulled over, turned the car off and turned it back on, started driving and same thing. I had no choice but to drive it on the interstate. I could get up to 60 very carefully but I was still sitting around 4000rpms. It wouldn’t shift gears at all (I know it’s a CVT and doesn’t have gears). I then noticed a high squealing noise, thankfully made it home with a lot of honking and middle fingers even though I had my hazards on. Once I made it home, plugged in my OBD scanner and had a pending DTC of P1778 which I have found to be the stepper motor. Aka the death code. It’ll start, shift into all other gears, but is making a high squealing noise even when idle and in park and when revving in park the squeal gets louder. I even attempted the “semi manual’ to see if I could get it to catch, I couldn’t at all. No matter what “gear” I was in it wouldn’t bring the RPMs down.

Service Engine Soon light on. Was driving on highway at 55mph Transmission started to slip and car started to slow down while I was pressing gas pedal. The more I pressed on gas pedal the more the car lost acceleration. Had to move off to side of the road and turn car off. Took to mechanic and had transmission flushed and plate replaced. Transmission needs to be replaced. Ran diagnostic and codes for Transmission comes up.

I have a 2012 nissan altima that I purchased in 2018. in florida. check engine light appeared first. it currently doesn't run because of the transmission. it doesnt excelerate above 20mph. is there is a nationwide recall because of the cvt transmissions going bad?. I already tried to fix 2 separate parts on the transmission the code I'm getting is p1778. I changed the stepper motor and valve body and it's still won't go above 20mph. I don't have 5,000 to replace a transmission. we've been stuck on the road twice in traffic when it doesn't want to excelerate above 20mph

When I BARELY accelerate my car it does a very aggressive bucking motion along with loud noise. I have done put over $3k in vehicle! Nissan fix your shit!

Vehicle when in drive or reverse would barely move and almost got stranded in traffic. Finally will not move at all

After making right turn onto very busy 4 lane road with cars traveling 55 mph, the car failed to accelerate and had no power. Car acted as though it was in neutral. Fortunately, the road was downhill at this point and after turning on emergency blinking lights was able to coast about 3/4 mile to next street and turn right. I was almost rear ended three times during this coasting period at about 15 mph. On this part of the highway there was no place to pull over as the curb was next to the right hand lane. Had the car towed to a Nissan dealer the next day and was told that the transmission had "totally disintegrated" and was "unrepairable." Cost $4800 to repair. Was told that this was a "common occurrence" with the 2008-2014 CVT Nissan transmissions. Nissan has recalled many CVT transmissions but not 2012. Service manager also said that we were "lucky that disintegrated the way it did as some cars locked up in geared and immediately stopped." There was no prior warning of a transmission problem. No lights, no noise, no nothing. There was no way to know a problem or potential failure was imminent. This car is a danger. Had this occurred on a freeway in Los Angeles where we were driving just prior to this failure, it could have caused a major injury accident. This transmission should be recalled. The car had 97,000 miles. Nissan should be required to recall and reimburse owners who have suffered this failure in 2012 Altima transmissions.

Had transmission fluid changed now starts bit doesn't go in gear took it to shop and was told I need a new transmission don't understand why new fluid would cause this and have heard nissan has had numerous problems with cat transmission

We had a near fatal accident on the highway because the car suddenly lost speed drastically and later on a few incidents won't move up on the slope. My daughter had a hard time reaching home but somehow managed. A quick online research showed many people sharing similar issues due to faulty transmission and sensors. It seems that Nissan is simply hiding behind its 60,000 mile Warranty and not addressing and fixing this issue for the consumers and thereby putting lives at risk.

3 times car has decelerated when driving on interstate for 1 to 2 hours. Last time speed dropped to 20 mph when most cars were doing 70 to 80 mph. This creates a very dangerous situation that could result in loss of life if not corrected. Nissan refuses to address the matter and problem is well documented on the internet and lawsuits. Nissan should have issued a recall covering the defective CVT. My college age grandson is driving the car as he has no other option but he is putting his life and friends at risk each time he goes on an extended trip. Nissan should at minimum replace the transmission as a safety issue but have denied our claim. Your help would be greatly appreciated.

In mid-May 2021, noticed that the Altima (at 105,000 mls) had little power when accelerating. At one point, pulled out from from a stop at an intersection and basically "crawled" through. Barley made it up to the top of our driveway. "Check Engine" light came on. Not safe to accelerate in traffic. Local AAMCO, and local Nissan dealer, both diagnosed transmission failure. Have learned that apparently Nissan knew of this problem.

Transmission lost power (reduced power) after 65000 miles. Initially I was not aware of the Nissan 2012 Altima having transmission issues. Now the repair rather replacement cost is about $5000 as per estimats Iave approached local NISSAN dealerships and national customer service hot line and there has bee ZERO help from them. 2012 is know to have CVT transmission and its related performance and repair issues. Still that year, 2012 , NIssan is not covered under warranty beyond 60K nor there is help for customers who purchased this vehicle

THREE HOURS INTO MY DRIVE, I WAS GOING ABOUT 70 MPH AND NOTICED MY CAR STARTED TO SLOW DOWN AND WAS MAKING A NOISE. I PULLED OVER, GOT OUT, CHECKED MY POWER STEERING FLUID. IT WAS FINE SO I DROVE OFF AND AS I WAS ENTERING THE FREEWAY, I NOTICED THE CAR WASN'T PICKING UP SPEED AGAIN. I DROVE TO THE NEXT EXIT AND GOT OFF. I LITERALLY COASTED TO A PARKING LOT OF AN INDUSTRIAL BUILDING. AFTER SEVERAL ATTEMPTS AT TRYING TO LEAVE THE PARKING LOT, I NOTICED I COULDN'T GO UP THE HILL. I WAITED ABOUT 30 MINUTES, PICKED UP SPEED AND MADE IT UP THE HILL AND ONTO A 2 LANE ROAD. I DROVE TO A HOTEL ABOUT 4 MILES AWAY, GOING ABOUT 40 MPH. I REALIZED THAT AS LONG AS I DIDN'T STOP, I WOULD BE FINE. THE NEXT MORNING I FOUND A MECHANIC SHOP, CALLED AND DROVE THERE WITH MINIMAL PROBLEMS. HE TOLD ME THE YEAR, MAKE AND MODEL OF MY CAR HAD BEEN HAVING ISSUES WITH THE CVT TRANSMISSION. HE HOOKED A MACHINE UP AND IT GAVE HIM THESE CODES: P0746, P0826, P1778 STEP MOTOR, P0868. HE TOLD ME TO CHECK FOR RECALLS. I WAS ABLE TO DRIVE THE CAR 3 HOURS BACK TO MY HOUSE IN WOODBRIDGE.

THE CAR STARTED SLOWING DOWN IN THE FREEWAY AND IT LOST POWER WHILE I WAS IN THE CARPOOL SO I DROVE CAREFULLY TO THE EMERGENCY LANES ON THE SIDE RISKING GETTING HIT BY A CAR CAUSE IT DIDN'T HAVE ANY POWER OR SHIFTING. I THOUGH THE TRANSMISSION WENT BAD. I TURN OFF THE CAR FOR FIVE MINUTES AND STARTED IT AGAIN AND I TRY TO MOVE THE CAR AGAIN AND IT WENT WELL. AFTER COUPLE DAYS OR WEEKS I DON'T RECALL I CALL THE DEALER REQUESTING A RECALL ON MY VEHICLE WHICH THEY ASK ME HOW MANY MILES IT HAD I TOLD THEM 83,000 MILES AND THEY TOLD ME I DON'T QUALIFY TO GET THE TRANSMISSION REPLACE CAUSE IT HAS OVER 80,000 MILES ALREADY. IT SEEMS THAT NISSAN MAKES FAULTY CVT TRANSMISSION MANUFACTURED BY JATCO. I WANTED TO KNOW IF I QUALIFY FOR THE RECALL FOR THE TRANSMISSION. WHEN I RESET THE CAR ON THE FREEWAY FOR FIVE MINUTES IT RAN AND HASN'T HAPPENED AGAIN BUT IT'S SUPER SLUGGISH. THE CAR SHOULD HAVE A RECALL NO MATTER THE MILEAGE. FORGOT TO MENTION THEY SAID I DON'T QUALIFY ALSO CAUSE THE CAR IS SALVAGE AND IT VOIDS EVERY RECALL WHATSOEVER.

PURCHASED CAR AUGUST 8, 2020. WAS DRIVING IN THE CITY WHEN ENGINE LIGHT CAME ON 08/24. TOOK THE CAR TO NEBORHOOD TIRE PRO'S IN DECATUR, GA. HAD A DIAGNOSTIC DONE. CAR RECEIVED 3 CODES. ONE CODE WAS P1718. WAS TOLD THE TRANSMISSION WAS BAD. TOOK IT BACK TO NISSAN STONE MOUNTAIN. HEALTH WAGES THE SERVICE MANGER AFFIRMED IT WAS THE TRANSMISSION.

CAR AUTOMATICALLY REDUCES SPEED FROM 65 MPH TO 35 MPH WHILE IN MOTION ON HIGHWAY AND WILL NOT INCREASE SPEED WHEN DRIVING AT AN HOUR OR BETTER AT 65 MPH OR GREATER. WHEN IT AUTODECELERATES IT MAKES A WHINING NOISE AND WILL NOT ACCELERATE AGAIN UNTIL YOU TURN THE ENGINE OFF AND ALLOW THE CAR TO SIT FOR 30 MINS OR BETTER.

MY 2012 NISSAN ALTIMA WAS BOUGHT AT 40K MILES. IT RAN GOOD FOR WAS MAINTAINED. AT 108K MILES THE TRANSMISSION STARTED ACTING UP. IT WOULD NOT SHIFT INTO 6TH GEAR (CVT TRANSMISSION) AND WOULD EVENTUALLY LOSE POWER AND NOT ACCELERATE. I HAD IT DIAGNOSED AND FOUND OUT THERE WAS A RECALL ON THESE TRANSMISSION BUT THEY WERE ONLY FOR THE PRIOR YEAR MODELS SO THERE WAS NOTHING I CAN DO. IT IS NOW AT 120K MILES AND IT HASN'T GOTTEN SO BAD I CAN'T DRIVE IT ON THE HIGHWAY. I TOOK IT TO THE DEALERSHIP AND HAD IT COMPLETELY DIAGNOSED AND THEY TOLD ME THAT IT THREW WHAT THEY REFER TO AS A 'DEATH CODE' AND SAID IT NEEDED A NEW TRANSMISSION. THEY TOLD ME THAT IT'S A MATTER OF TIME BEFORE THE TRANSMISSION COMPLETELY DIES. I'M A STUDENT AND IN THE MILITARY SO I STAY VERY BUSY AND MY CAR NOT BEING RELIABLE HAS PUT A STOP TO EVERYTHING. A TRANSMISSION GOING BAD AT 120K MILES SHOULD NOT BE A THING. I TRULY FEEL CHEATED BY NISSAN WITH THIS CAR.

ONGOING ISSUE WHERE VEHICLE LOSES POWER WHEN DRIVING FURTHER DISTANCES (30-40 MILES) OR UPHILL IN THE MOUNTAINS AND IS UNABLE TO ACCELERATE. DRIVER IS FORCED TO PULL OVER ON THE SIDE OF THE HIGHWAY AND WAIT UNTIL VEHICLE CAN COOL DOWN AND GAIN POWER AGAIN. THIS IS AN ISSUE WITH THE CVT TRANSMISSION. NISSAN SHOULD HAVE ISSUED A RECALL FOR THESE TRANSMISSIONS OR EXTENDED THE WARRANTY AS IT IS AN EXTREMELY UNSAFE SITUATION.

VEHICLE WAS FINE AND ALL OF THE SUDDEN IT WENT INTO LIMP MODE AND CHECK ENGINE LIGHT CAME ON DUE TO PROBLEMS WITH THE CVT TRANSMISSION. *TR

Transmission spudders at times. It is very delayed when pulling out sometimes. Turning the car off and back on might help sometimes. Car will go in limp mode. Nissan dealer said it was the Transmission. There is a big safety concern because when you push the gas trying to cross an intersection, it might lag behind and not go. This could result in being hit. This has been a great car but the cat is complete junk and Nissan should be ashamed of themselves for this. If they get enough law suits they may change something. Well maybe, They don't care about peoples lives.

THIS CAR HAS JUST 101,000 MILES AND THE TRANSMISSION IS NOT DOING THE OVERDRIVE. I READ INTO IT AND ALOT OF OTHER PEOPLE HAS THE SAME PROBLEM NISSAN SHOULD TAKE THE VEHICLES AND FIX IT ITS NOT LIKE WE PAY 5 BUCKS FOR A CAR ITS NOT EVEN PAID OFF AND I ALREADY HAVE PROBLEMS. I WENT TO SEE WHAT WRONG AND ITS THE TORQUE CONVERTER CLUTCH. *TR