2012 Nissan Altima 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.”

“The sensor was replaced but the light engine light still came back on now the speed sensor is causing the issue. The abs light comes on while accelerating it jumps and jerks”

“I was working, and as I was on my way to a location a lady in front of me came to a complete stop since a couple of ducks were crossing causing me to come to a complete stop as well. As I stopped I looked into my rearview mirror I noticed the lady behind me was not stopping and then smashed into the back of me launching me into the car in front of me. My passenger air bag went off, however my driver seat airbag did not go off, failing to protect me. My car was completely totaled in result of the accident.”

“What component or system failed or malfunction and is it available for inspection upon request. The CVT failsafe high fluid temperature protection mode enacted while I was driving on the highway at speeds of 65 to 70 mph going with the flow of traffic it is not available for inspection upon request because this issue only occurs while you're driving down the highway. How was your safety or the safety of others put at risk? My safety and the safety of my passengers and the safety of my fellow commuters was put in jeopardy due to negligence of the manufacturer of the 2012 Nissan Altima when this occurs all acceleration ceases your foot can be all the way to the floor on the gas pedal and your car will not accelerate and in the fast lane on the highway when this happened I became a Sitting Duck in the flow of traffic cars are flying by me and my passengers and I can't get enough speed to change lanes and get out of danger due to a failsafe that Nissan put in these cars on purpose they were fully aware of these issues this is a direct quote from the 2012 Nissan Altima owners manual page 5-17 warning when the high fluid temperature protection mode or fail safe…”

“Have a '12 SR coupe. Car keeps turning over for 5-10 seconds before starting. The alternator checked fine, but the battery voltage was a little low. I bought a brand new battery and that seemed to fix the problem....... for an hour. New battery is at the correct voltage, and alternator came back fine again. Even Nissan themselves have bo idea what's wrong. I've never seen this complaint anywhere, but I assume not that many people own the coupes. I even had an 09 SE coupe that never did this.”

“Took the car to a repair shop to get an alignment. Was told that the frame rear cross member was so rusty that it needed to be replaced, and that if it broke while driving I would lose control of the car. The component has not been removed from the car. No one else has looked at the car. Only prior warning/message/symptom was uneven rear tire wear first noticed about 6 months prior, but that may have been due to bad rear shocks.”