Vehicles engine suddenly and without warning began knocking while crusing down the interstate, within 30 seconds of the sudden knocking the engine was locked up on the side of the road. After reading i have found thousands of other cases just like mine where there cummins 5 liter diesels have suddenly and without warning locked up while traveling down the road. All maintenance was done on time by nissan technicians. Milage for my specific instance was 101,056. Nissan refused to warranty and dealer ended up out of pocketing most of the repair. And Nissan continues to ignore that there is a serious issue with these engines, and after doing more research i have found litterally thousands of cases just like mine, and anywhere from 1000 miles on up through 150,000 miles with some instances happening up to 5 repeated times before the vehicle reaches 100,000 miles. The repair itself cost upward of $23,000, and dealerships and technicians seemly know nothing of said issue even though a quick search online shows case after case of peoples nissan titan diesels unexpected locking up while traveling down the road and in some cases causing the drivetrain to lock up as well suddenly and abruptly stopping there vehicle, potentially causing an accident. More often than not though nissan is leaving these customers like myself high and dry on the side of busy interstate while they continue to hide the fact that there product is defect and potentially unsafe. I was fortunately to have a great dealership that took care of me and got me off the side of the road, but many arent. In most cases including mine these vehicle display a crank position sensor code, and then shortly there after the crankshaft breaks in half and often times sends large pieces of metal flying out of the engine block shortly before locking up completely. I was fortunate and mine did not throw large pieces of metal out but many are not, and these large pieces of metal often pierce the vehicles tires and those behind

- Barnsville, MN, USA

Crankshaft broke while on interstate. Lost all power from engine and to exit to side of road immediately. Truck is at dealership and was giving news of needing engine replacement at 84k miles. Service light on for boost control system but was told that vehicle was drivable.

- Newport, NC, USA

The truck goes into limp mode without warning. The cause is a faulty wastegate actuator that is now on it-??s third revision. The exhaust gets clogged dur to improper mix ratio and puts the vehicle into limp mode which will only go about 10 miles per hour. This can happen without notice and could cause death or injury while merging into or across traffic. Part replacement not available and no status when it will be available. This is a serious issue that needs addressed die to no warning before disabling full power. I-??ve had several near misses due to this.

- Winchester , OH, USA

The crankshaft broke while I was in the middle of a two lane highway. I was unable to move any further and I was a huge traffic liability for everyone that passed. My children were in the vehicle and we were really worried about their safety. The vehicle was inspected by the manufacturer and my insurance. There were no warning lights or anything to let me know I might be having an issue.

- Boise, ID, USA

Hello, I have purchased this Titan XD diesel 3 years ago from Nissan Dealership in MD, (Anwerpan Nissan). That dealership informed me before It was an issued with turbo chargers and replaced them. Over the 3 years I was maintained this truck with proper oil changes and other service. I have outfitted with camping (ovelanding equipment), so this summer in July we went to camp in Upper Peninsula, MI, when the engine just stopped working right on hwy, and it's lucky enough no accident happened and we are be able to roll on side of the road. I have towed the truck to Garber Nissan, MI, they have troubleshooted engine and said it will need a full engine replaced as bearing spun and may be broken crankshaft. I found out later from forums and Facebook it's a very common problem with these engines. It's very dangerous, if the truck was pulling a load and engine locked up, and trailer swing around. Nissan NA has refused to cover this repairs. The repairs is about $17,000 to $20,000 plus. Cummins engines for the Nissan is pretty much failed every one from 2016 to 2018 years of production. The truck has 96,000 miles and warranty expired in 02/19/2021 The Nissan NA representative is [XXX] ph. [XXX]. Thank you [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Leesburg, VA, USA

Engine loses power, slows down to a creeping 5-10 mph during peak hour traffic or turns-off completely. Instrument panel reads exhaust filter overload/reduced speed. Afterward, vehicle will not start at times or will start but resumes 5-10 mph speed of travel. Had manual reset performed; only 44 miles later to have same engine trouble beset the vehicle again.

- Monroe, LA, USA

This is going to be third time my Titan has broken down on me...this time the seven.light is flashing and I called the service dept.and was advise to drive it on the highway and it should seven.itself...I drove it for 100 miles and still flashing...

- Pinon, AZ, USA

Immediate recall needed on all Nissan Titans with limp mode for def expiration. Deadly consequences possible and not avoidable. I have recently discovered that the Titan is a deadly vehicle in several ways. Most recently I discovered the fact that def fluid ages to the point of causing the vehicle to go into a limp mode of 5mph with no disabling the limp mode. Unsuspecting diesel owners have no way of knowing if the def they purchased has expired or the def in their tanks has gone bad. If the vehicle is in an area that has drastic climates such as sub zero or extremely hot, driver and occupants of vehicle may die of exposure. There is no warning for the def failure for impending failure of the emission system as I have just experienced. I believe that not making Nissan and others to not recall this dangerous built in child killer would be a tragic mistake by the safety commissions.

- Taylorsville, KY, USA

On a daily basis the diesel engine has a hesitation from both a stopped position as well as low engine RPM that causes safety concerns in traffic. Reported issue to Nissan with no help.

- Chillicothe, MO, USA

While traveling down highway the check engine light illuminated and I lost all power. I had to get to the side of the highway fast before I got rear ended. This vehicle is extremely dangerous. I purchased used with 10,000 miles on it and this is the second time the engine has lost complete power with no advance notice. First repair by Nissan dealership was blown valve and turbo problems. 8,000 miles later the turbo is throwing error code P2662. This truck is heading towards lemon status with the terrible 5.0 V8 and it's no wonder Nissan stopped offering the diesel option. Other problem the rear door exterior panel rattles when at 45mph or higher and is quite annoying for a supposed platinum model. I'm beyond disappointed in this vehicle and it should be pulled off the road before someone gets seriously hurt or killed from instant loss of power while in motion. I'm in shock that this diesel motor isn't under investigation. Nissan doesn't have adequate diesel technicians to address these problems. Nissan or cummins need to recall this truck immediately.

- Bakersfield, CA, USA

Vehicle was in motion when happened. The vehicle was already in movement for couple of hours. It have double diesel filters separator so this issues not supposed to happens. Not towing or anything just traveling true states.

- Orange Park, FL, USA

There are diesel exhaust fumes coming into the cab while the vehicle is running. There is no difference whether the air conditioning is on recycled, fresh, or if it is off completely. The smell is overwhelming and does not go away even with the window being rolled down. The fumes also come into the cab whether the vehicle is stationary or in motion. The fumes do not increase nor decrease depending on the speed you are driving. The fumes are constantly there, at the same smell.

- Lincoln, NE, USA

I left my home on a 1300-mile round trip from ar to ky. About 100 miles into my trip while pulling an enclosed 16' trailer at 70mph on a flat 4 lane highway the warning reduced engine power and the check engine light came on. The reduce engine power warning went out, but the check engine light stayed on. During the next 550 miles the reduced power warning came on and went out about every 100 miles. I was able to continue to ky that day. The light went out the next morning. On 6 July 2020 I started home and both the check engine light and the reduced power warning came on after I had driven about 50 miles driving at 70 mph pulling the trailer on a 4 lane interstate highway after a few minutes the reduced power went out but the check engine stayed on, during the next 600 miles the check engine light stayed on but the reduced power warning would come on and go out at about 50 mile intervals. This continued all the way home. During the trip when the reduced power warning came on the truck would hold whatever speed the cruise was set at but if it tried to go up any incline the truck would not rev above 3000 RPM which caused the transmission to jump in and out of passing gear and you were unable to pass or even keep the speed up going up any type of a steep incline (hill). Since you had no idea when the light was coming on and the power was going to be reduced, I was afraid to pass anything or let any other vehicle get too close behind. I got the truck into shop two days later. When I picked my truck up, I was informed that the egr cooler had failed internally and was losing coolant into the exhaust system and had to be replaced. I did a search of the internet for other owners who had this problem with their truck and found lots of other owners who had the same problem reduced engine power and most were due to the egr cooler leaking and causing a loss of coolant.

- Jacksonville, AR, USA

Once while driving, the vehicle shut of with out notice. There is some hesitation occasionally while driving and has also stopped running while sitting still. Took it to a Nissan dealer and paid to have a diagnostics test and they said nothing could be found. I don't know if it's electrical or fuel components. No engine light comes on the instrument panel.

- Emerald Isle, NC, USA

On 05-01-2020 I was driving back home on I-59 North and I lost the power steering, alternator and A/C. I continue driving because I still have mechanical steering control I get home and I noted the serpentine belt and the belt tensiometer was broken, I ordered and changed after repaired I was driving to work on 05-07-2020 and I notice the car is not working good, I check and 1 of the bolts from the steering pump adapter was broken, I take to the dealer and after a week and be talking with Nissan case number 40163453, with the car inside of the warranty they say the bolt is a hardware and is not cover by the warranty, also the dealer say is going to be expensive repair because they have to remove the radiator, I choose to do the repair by myself, I'm an aircraft inspector with 39 years' experience repairing airplanes. I fix in the best way I know, but this situation can cause a accident see attach pictures, also the adapter pump holes are little big of the diameter of the bolts with the vibration of the engine (diesel) can cause this bolts to be loose.

- Porter, TX, USA

Yellow check engine light comes on and loss of power, truck will jerk back and forth like theres no fuel then will shoot off.this has happened many times with no light on.ive taken my truck to the dealer to be told the check engine light came on for def low and braking too many times. Driving normal and a red indicator light comes on with yellow check engine light and truck saying reduced engine power and I pull over and turn truck off for a few mins and everything is off. Truck many times wont go past 3 rpms.many times while driving I cant accelerate and no lights are showing.Nissan dealerships I believe dont know anything about this truck and is clearing codes without fixing the problem.ive asked to see the code list and was refused.recall on ECM same issues were happening and the recall was fixed to update ECM but the dealership actually fried my ECM and had my truck for 45 days trying to get it started. Same problems as before which I believe something else again is wrong with this truck.many Titan owners are having the same problem, dealership state they cant duplicate the issue which if they tried they would succeed but trying and having a vehicle only get 5 miles on while at dealership is highly suspicious.dealership doesnt fully listen.transmission has had a hard knock into gear since day one and was told that's normal for my transmission.I see the same problems being said by alot of owners and nothings being done about it. I've been having these issues since I bought my truck Jan 31 2017.

- Redlands, CA, USA

This truck is a diesel. Every time it goes into regen the cab of the truck will fill with exhaust smoke and fumes. It's so bad it will make you feel sick, and get a headache. I feel it's only more noticeable in regen but the problem is always present, due to the fact that when it sits idle eq. Waiting for wife in store that I will get a bad headache. I did not connect the two issues but it is more apparent when in regen due to a larger amount of exhaust being produced. This is a dangerous situation, I have been told by Nissan (2 different dealers it's normal and not dangerous) there is a case on file with Nissan motors regarding this problem. And I am aware of many people having the vehicle re-purchased by Nissan for this exact problem. I really like my truck, it has had some issues that have for the most part been resolved, but this is a health and dangerous situation that needs to be resolved. Since when is any amount of vehicle exhaust entering the vehicle ok" poor tail pipe design"

- Riverview, FL, USA

The vehicle stalls out when coming to a stop at intersection. Sometimes before coming to a complet stop and is dangerous when it happens at mid crossing point of intersection.

- Clute, TX, USA

During normal driving the check engine light comes on periodically and the engine goes into limp mode for no apparent reason. There is no acceleration and you typically cannot get above 15 mph. Today was the fourth time I have experienced this issue. The dealer has a new turbo on order but is not confident this will cure the issue. The previous episode nearly caused an accident by a distracted driver when I couldn't accelerate through an intersection left turn with plenty of space and time. The accelerator pedal has no response to the engine and there is no prior warning. The check engine light may or may not illuminate. Today the engine went into limp mode when acceleration from a dead stop at an intersection. The truck never achieved more than 10 mph and when I removed my foot from the accelerator the engine died. Luckily I was at an intersection with traffic lights and it was downhill so I could coast through the intersection to the shoulder. I placed the truck into park and restarted the vehicle without further incident to my home.

- Warrensburg, MO, USA

I'm writing to make aware of the delay in acceleration of my 2016 Nissan Titan xd. On several occasions I have either tried to pull into traffic or make a left hand turn and have had no power due to a delay in the turbo kicking in. It's quite scary. Hopefully this can be addressed and corrected. Thank you, [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Ventura, CA, USA