39 problems related to engine and engine cooling have been reported for the 2018 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Nissan Titan based on all problems reported for the 2018 Titan.
While I'm driving my truck, it has a cummins diesel engine, at certain times I guess that the engine goes through a regen process, when it odes this process then the cab is filled with noxious gases. This process last a few minutes and causes you to lower the windows to get rid of the toxic gases. I reported it to my Nissan dealer twice when I took it in for it's service, they acted like they had never heard about it before and told me that there was no issue with my truck. That I had to drive it more to get it to stop ding it. Is this normal or are we being poisoned or getting cancer from these events?.
1. The vehicle had to be braked hard on the highway to avoid a car that failed to yield while merging. The other vehicle then braked hard and I attempted to accelerate to get in front but the vehicle would not respond to the gas pedal. The engine did not shut off, but the truck would not rev the rpm's or have any response to the gas pedal for about 3 seconds. Luckily a collision did not occur. 2. While taking a right hand turn onto a steep incline drive from a highway the truck once again would not respond to the gas pedal. The truck was just sitting on the incline for about three seconds before it responded to the gas pedal and climbed the hill. There was a vehicle following behind into the drive and had to stop to avoid colliding into my rear end as the truck would not go for a few seconds. I am not exactly sure how to describe these two incidents other than it is a "dead pedal" for several seconds when propulsion is truly needed.
When flooring the accelerator pedal (as to pull out on entrance ramp) it has diesel lag response (just take a few seconds to accelerate) and also transmission has shifting issues during this time. Sometimes intermittent I had a near miss experience when this happened to me I was pulling out onto the highway from the entrance ramp. .
Truck has bad hesitation when automatic transmission is shifting from gear to gear and the rpms fluctuate badly. No low end power. This condition is worse when towing. Dealer said they all do this. I have owned 4 Titans including my 2018 none of my other trucks did this. Wish I didn't trade in my 2013.