2021 Nissan Frontier

I brought my truck in for service on 3/10/23 and they preformed the recall for the transmission. This involved reprogramming no parts were available yet. On my trip home from the shop I noticed right away my fuel economy went from 21MPG to 18 MPG (same roads I always drive) and I have been having a warning light come on after I let and it has came on and off twice. I worry about what would make such a drastic change and what is it doing to my transmission. I have notified the dealer but they are not open till Monday. I do not want my private information shared. I do not know if this is a normal or common problem

have gone to Nissan for excessive rattle noise in passenger footwell would sound louder as i gave it gas they concluded that the heater core bracket was loose and tighten but sound did no go away took it in again heater core bracket not good would need to replace so had to take it in third time for same heater core issue eventually they replaced heater core but still have problems with the air was taken to Nissan over 7 times for climate problems. it was not equal driver side blew hotter than the that passenger side eventually it stop blowing air through front vents only the defrost vent works seat adjusting bracket did not lock in place when coming to a stop the passenger seat would slide forward defective Nissan replaced --few month later passenger seatbelt tensioner went bad check engine error code took it to Nissan was replaced by Nissan Nissan service mechanics driving car with defective seatbelt that no issue until part came in same with bracket i had to take them on a ride they kept saying they cant recreate problem as far as climate its been a heat wave over 98 degrees outside and I'm having to drive in a hot car these problems have been since first day i drove car home I've been to service center over 12 times don't feel safe with vehicle i have spoken to Nissan arbitration dept enter Jessica Willis car currently has no air and they are aware of my situation and the heat wave that im having to deal with

Sidewall failed at 70MPH on I-40 Westbound causing immediate deflation of the tire almost causing loss of vehicle control. The problem has NOT been reproduced by a dealer or independent service center. The vehicle has NOT been inspected by any police or manufacturer. The low tire warning lamp illuminated seconds after said blowout. HANCOOK DYNAPRO AT M P265/75R16

The contact owns a 2021 Nissan Frontier. The contact stated while driving 75 MPH, the air bag warning light illuminated and was flashing. The contact continued driving to his residence. The following day the vehicle was taken to a dealer to be inspected. The mechanic found and tightened a loose wire to fix the failure however, several days later the failure recurred. The contact took the vehicle back to the local dealer who reset the air bag sensor to clear the code. The contact was concerned that the failure would recur. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 2,000.

My husband and I bought a new truck. My husband pulled the truck into our garage, once in the garage the back tires started to spin out of control, he looked down and saw he had his foot on the brake only, but truck surged forward causing no injuries but have minor truck and property damage. Have a picture of where there is stationary tire marks on our epoxy garage floor showing the black tire marks of the tires spinning out of control just before the truck surged forward. After this incident we found articles about sudden unintended acceleration which we feel is what happened to my husband. The dealership we bought the vehicle from has been derogatory from the start of this incident. We have contacted several attorneys to only be turned down saying we don’t have a case because my husband wasn’t injured (thank God). We waived the manufacturer arbitration and found only one attorney who took us through pre-litigation but then discharged us after getting the denial letter from the manufacturer, telling us to get a second opinion. We're at a crossroads and don't know what to do at this point. Morally, would it be right to trade in what we feel is a dangerously defective new vehicle? For that is the crossroads we stand at, either pursuing a civil lawsuit or trading it in. The truck was inspected once by the manufacturer and once by the dealership where we bought it. We are currently asking the dealership’s garage to further check the electronic throttle-control and brake override system on this truck. Any help you can provide would be greatly appreciated. Thank you.

Descending my driveway which is an approximately 15 degree slope with the transmission selected to remain in 1st gear, and approximately one third of a tank of fuel or less remaining in the fuel tank the engine seems to momentarily cut out as the vehicle feels like the transmission is in neutral, but the tachometer indicates the engine is running. When this occurs the MIL comes on along with the check AT light. Stopping the vehicle and restarting the vehicle clears the Check AT light, but it takes several drive cycles to clear the MIL light. This has happened on two occasions. After the first occurrence the dealer checked for any locked in codes, but none were present. Since the MIL only stays locked in for a limited time it appears that the on board diagnostics are not storing codes due to it being a momentary issue.