2021 Nissan Murano

The cruise will not maintain the set speed when going downhill. This does not have to be a steep hill. Any downward slope with cause the speed to increase until I hit the brake pedal. It has gotten up to 13 miles over before I hit the brake. I owned a 2018 Murano and it did not do this. I've also owned many other vehicles with cruise control and none have done this. I have taken this to Town Center Nissan more than once for this problem and they say that it they can't duplicate it and then the answer changed to it is normal when going downhill.

The problem we have with the Murano is the cruise control. We live in a mountainous area and the issue we have is the cruise control will not maintain our speed when going downhill. It wasn't until we had bought the car that we learned that because the vehicle is equipped with a CV transmission that the car cannot downshift to slow the car down in a dissent. The first time we hit a downward slope heading home from the dealer the car increased in speed twenty miles over the set speed. The only waring we got was the cruise control set speed display was flashing. Had we known that the Murano was not able to maintain a reasonable speed going downhill we never would have bought it. We raised our concerns about the cruise control issue to the dealer we purchased it from, and they told us that the manual states that the cruise control won't maintain a reasonable speed in a downhill. Never explaining why it doesn't. We finally got the answer from another Nissan dealer. He explained that a CV transmission cannot downshift to slow a vehcle down because it doesn't have gears. I have spoken to our people that own vehicles with a CV transmission and that their cars can hold a set speed by throttling down and apply brakes. We spoke to a Nissan representative and she had us take the car to another dealership for a diagnostic test, which we did, but never got a response from them. Again, let me state that we would have never bought a car that cannot maintain a reasonable speed going downhill had we known.

The contact rented a 2021 Nissan Murano. The contact stated that after entering the vehicle, the rear windshield suddenly shattered. The contact indicated that during the failure, no object had struck the windshield to cause it to shatter. The manufacturer was notified but vehicle was a rental and would not discuss the defect. Also, Pennsylvania State Attorney but manufacturer declined to engage about the damage to the vehicle. The cause of the failure was not determined. The approximate failure mileage was 11,000.

A specific cruise control feature of the 2021 Nissan Murano, in my opinion, is dangerous to operate and may or may have already caused a serious injury/accident. I have brought this concern to the people at the Dealership in Tucson, AZ on several occasions. I have also contact the Nissan North America Consumer Affairs Office in Franklin, TN. Both of these parties have told me the cruise control system is working properly. So what is my concern? The last four cars that I have owned had cruise control systems. Two of the cars were Nissan Muranos. A 2010 Nissan Murano and a 2014 Nissan Murano Platinum. All four the cars' cruise control systems operated the same. Unfortunately, the 2021 Nissan Murano's cruise control does not operate the same as my last four cars, The 2021 Murano has one feature that is very dangerous and needs looking into. Example of the four previous cars: Let's say you set the cruise control at 40mph and decide to increase to 50mph by pressing and holding the RESUME/+ lever. All of the other cars that I owned would allow me to do this and when the speed odometer reached 50mph I would release the RESUME/+ lever and the cruise speed would be 50mph.The 2021 Nissan Murano Platinum does not do this. Example of 2021 Murano: Let's say I set the cruise control speed at 40mph by pressing and holding the RESUME/+ lever to increase to 50mph and I release it when my speed odometer reached 50mph. The 2021 Murano does not stop at 50mph it would go to approximately 80mph unless the driver steps on the brake. FYI, I did drive two other 2021 Nissan loaners neither of which were Muranos, Both of those cars' cruise control operated as my previous four cars' cruise control system. The car's manual and videos' documents that the cruise control should operate differently.

As I was driving up a parking garage ramp, about 1/2 way up the ramp, the vehicle slammed on the breaks like a front end collision was imminent. There were no cars in front of me, and I wasn't close to any required turns in the parking garage. If someone was driving too close, they would have rear-ended my vehicle. The vehicle simply had no reason to stop on its own.