2017 Nissan Titan electrical system problems

“Purchased a used 2017 Nissan Titan XD Pro-4X 5.0L diesel on 3/8/25. Left the dealership and only made it ~10 miles down the road before the check engine light came on and there was a loud knocking noise. Immediately turned around and went back to the dealership. After diagnosing it I was told it was a fuel injector and that they were replacing it. Received the truck back ~3/20/25. This truck is not my daily driver but the few times I have attempted to drive it the check engine light keeps coming on and I'm getting a message about the REGEN. On 5/28/25 I had the truck towed to my local Nissan dealership. They diagnosed it and although there is still a code for the same injector coming up they said the issue is the wiring harness and quoted me $7000 to repair and it's not covered under my powertrain warranty. After research it seems like this is a common issue in 2017-2019 Nissan Titan 5.0L diesel trucks which will cause the crankshaft to break if not fixed. I am super frustrated that after less than 3 months of ownership I have an undrivable truck requiring thousands of dollars in repairs.”

“Received a recall for my vehicle. Recall was pd128. Took vehicle to dealer to have recall serviced on vehicle which was for a pm sensor and reprogram the emissions control module. After recall, DEF system error code and reduce speed to 5mph showed up on truck. Went back to dealer to explain issue after the recall. They ran codes and thought it could be the DPF filter or EGR without thinking the recall could be to blame. Went to another mechanic and did a DEF system check and found no issue with system but a miscommunication with the NOx sensor. Had NOx sensor replaced and a week later had same DEF system error come on but was more intermittent and would clear on its own. Checked codes and found said miscommunication with the same NOx sensor that was replaced. Went back to the original dealer to explain the issue and believe it was due to the recall reprogram. They did a diagnostic and spoke with their own techs and said their campaign recall repair revealed a concern that was present before but did not have detection sensor or the logic to determine the issue and recommends DOC/DOF to to replaced. Contacted Nissan about the issue and if replacement would be…”

“The alternator wiring harness per recall bulletin NTB19-053 has has failed multiple times impacting starting and leaving driver stranded, shuttering while being driven, locking mechanism and other electrical components working intermittingly. Vehicle was purchased used from a dealership with 17,000 miles and shortly afterwards 1st episode of not starting occurred but then worked for about 8 months, assumed it was bad gas. In 2019 Nissan advised they inspected the harness but never informed about inspection nor recall. Over the past few years the problem one come and go and once twice I replaced the battery. Took the vehicle in to Nissan May of 2024 and they advised an alternator was needed but they did not have the part and could not get the part in a reasonable time frame. I offered to accept and aftermarket part and they did not agree to do so. A local repair center provided aftermarket part with 2 year warrant and also discovered the harness recall and advised this appeared to be the problem and would cost an addition $700 to replace. I returned to Nissan regarding this findings and was told all they had to was inspect it and they did so. Nissan Compliance…”

“The truck's engine died while traveling down the highway around 60 mph. I lost all power and struggled to pull to the side of the road avoiding traffic. there were no warning lights or engine lights before the truck died. There was only a slight vibration and loss of power. Once I stopped on the side of the road smoke started coming out from under the hood. The truck has been maintained well and taken care of and has 59,000 miles on it. I was told by a Nissan mechanic that the motor is locked up because of a broken crank, and they are still trying to see what happened with the electrical wiring that caused the fire. The truck is out of warranty and they informed me that a new motor would cost upwards of $25,000 dollars.”

“There has been multitude of this issue if you search the titanxd forums. Same thing happens to everyone. ABS, traction control, and the 4wd warning flashes on the dash. After this happens, it changes the characteristics of how the truck drives. Rapid shift, high RPM shifts, which are extremely hard to control on the highway. Also mentioning the ABS brake not working. Nissan has been changing out transfer cases because of this. The vehicle is extremely dangerous cause of these issues. I hope this makes headway to Nissan Corporate.”

“Driving at normal highway speed with my family vehicle shaked violently and stalled while in the middle lane of highway.I was nearly hit and crashed trying to coast to shoulder. I was towed to Nissan dealership and was told crankshaft broken in 2 peices. I’ve done research in this 5.0 Cummins diesel engine and come to find out this is a very common failure due to faulty wiring harness that provides power to injectors.I’ve contacted corporate Nissan to report problem with no help.There is YouTube videos on this common unsafe problem”