2018 Nissan Altima acceleration complaints

Filed Jan 21, 2019 · Acceleration, Brakes · 6,500 miles · TN

This is an issue that has been continuously happening since I purchased the vehicle with about 2500 miles on it, it currently has about 6500 miles on it. The emergency braking system continues to turn on and off at various times but has continued to get worse over the few months that I have owned it. The worst situation I have had was recently on a 300 mile round trip when the emergency braking would activate and deactivate every few minutes, in which it would flash on the dash saying the system was obstructed, and the warning light showing it deactivated would turn on, the cruise control would shut off and a keeping sound would turn on. This was happening with no apparent particular incident. The trip took some back roads, a lot of highway (2 lane and 4 lane) and a moderate in city driving. The weather was clear, the sun was out with partial clouding, it was around 40 degrees outside, the roads were dry, some were rough some smooth, other than in the city there was little stop and go traffic. The worst incident was during the return trip, we were on a 2 lane highway that was pretty smooth. There was no one in front of us we were doing approximately 70mph with traffic behind us, we had the cruise control on and were just going along a straight flat stretch of road when the system once again deactivated, beeped then reactivated and beeped and then slammed on the brakes on us. It was only an instant and created no situation of danger based on our position, and as it was instant I was able to step on the gas again and we only dropped from 70 to about 50mph in the period. This was the worst situation I have run into with the issue so I looked it up on the internet and found it is stated as an issue on the sentra. This unexpected deceleration on a freeway could have been a devastating accident.