I’ve owned a 2018 Titan SV for less than a year, and I’ve had a handful of times pushing the start button and the engine just doesn’t seem to fully turnover. It will sputter, knock a little and have a rough low idle. My first reaction was to push the start button again, and that just makes the engine run longer until it dies. If I wait a minute, and try again, it starts fine. This has happened to me a couple times previously, and three times this month. When this has occurred, perhaps coincidentally, the truck would start and run fine, I’d park it and come back 20-30 minutes later and try to start it and this would happen. The last time this happened, I tried a couple times, and eventually I was unable to get the truck to start at all. I also tried my other fob with no luck. I connected my jumper battery pack and was able to start the truck immediately. I took it to Nissan to have it looked at. They couldn’t find anything wrong, no stored DTCS, and couldn’t duplicate the issue. They updated the ECM to the latest software. I’m planning on buying a portable jump start battery to keep in the truck. Has anyone else experienced this with their truck or have any suggestions? Thanks!