Radiator leaked into transmission, causing both to go out. Repeatedly took my car to the dealer to diagnose problem but they had no knowledge of the radiator-transmission issue. Once my car finally died I was forced to repair on my own with no help from Nissan. I was too far over miles to be included in their "customer satisfaction program" which only covered cost over $3,000 and under 100,000 miles. I spent $4,360 out of pocket to replace transmission and bypass radiator.

- Rosharon, TX, USA

My 2007 Pathfinder has been shifting rough and sounds like I am driving across "rumble strips" used on the road to keep drivers awake. I went to the dealer to get an oil change and explained the issue. After they checked the car out they told me I had power steering fluid in my radiator and coolant in my power steering assembly. When I asked how that could possibly happen, the tech tried to assure me that this is what happens when radiator lines fail. I told them I had never heard of that and wanted to know how this could happen. They told me it would cost $5,250 to replace the radiator. The service tech and service manager acted like they knew nothing and suggested I call Nissan North America...I did. They told me that since I had reported my issue to the better business bureau my case was sent to the arbitration department. The arbitration guy called and told me my vehicle was out of warranty and there was nothing they could do. I did some research online and found that Nissan has known of this problem since 2005. Nissan lost a class action suit for this problem but the remedy was to extend the warranty for 100,000 miles. I'm confused because I do not understand how a manufacturer can warranty away a defect. From my research the average mileage for this problem is 112,000 miles. My car is slowly becoming non drivable. I accelerated out of a parking lot but the car moved out into traffic and started rumbling but would not accelerate any further. I almost got hit by another car. Why is the consumer responsible for a known defect" isn't a warranty for parts that are manufactured correctly"

- Indiapolis, IN, USA

I have a 2007 Nissan Pathfinder. I was driving it to work and all of a sudden I just felt my car`S engine is having a heart attack, - a myocardial infraction. Then it started choking minute by minute. By then I knew my silver 2007 Pathfinder is turning blue. Gotta call the code blue team. I am a nurse so this is the only way I can explain what I think what's going on rather than mechanically. The car is 7 years old, always used premium gas, use synthetic oil on it, always took the car to the dealership for diagnostic check up and maintenance, only 63,000 less mileage, I'm the sole driver. Got it towed to the dealership, got diagnosed by mechanic and told me that the timing chain system is screwed, and eventually damaged the pistons, then there was some leakage....they asked me $4,100 for the repair. This expensive repair cost is very unexpected and not my priority right now cause I have other more important to spent it with. And reading "Nissan North America named in class action lawsuit alleging failure to disclose defect in timing chain systems which results in premature failure". Nissan never issued a recall and now the consumers has to pay costly repairs. I paid $4,480 something.

- Chicago, IL, USA

Transmission failure driving under normal conditions on interstate.

- Daphne, AL, USA

First the fuel sensor went out. Once I got that fixed (640.00) the fuel tank wouldn't fill up and the gauges were off. Then fluid leaked into the radiator and I had to replace the radiator (1,000.00). Then I had to flush it twice. Then the car overheated because the thermostat was gone. $250. Now the car won't start and I'm being told it's the ignition gone bad. All of this has happen over three months. I will never buy another Nissan again. This was my third Nissan and last!!!!!!! where are the recalls if the same problems are occurring.

- White Plains, MD, USA

Transmission on the Pathfinder was very rough shifting from 3rd to 4th gear. We returned it to a dealer, who said it needed a new transmission. It seems that this has been a very common problem, and it seemed the company should have done more to remedy the problem than just hoping the newest extended warranties ran out before the cars needed repairs.

- Washington, PA, USA

I am a very loyal Nissan/Pathfinder owner. I'm on my second Pathfinder and always have my beloved 2007 serviced regularly at the puyallup Nissan dealership. Because I rely on my vehicle for work, I make sure to keep it current with all recommended services over the life of the vehicle. Until recently, ive been an extremely satisfied Pathfinder owner. Now, I am quite upset that a known defective radiator notice I received approximately a year ago, advised to do nothing if experiencing no problems, but now that I'm over the limit of 100K miles (115K), and experiencing the known radiator defect issue, I am now on the hook for the entire repair cost ($5000). I've researched the issue which can be summarized at www.nissanproblems.com/problems/transmission.shtml what does the miles matter" does Nissan's obligation to their product and customer disappear after 100K miles? why didn't Nissan recommend replacing the radiators, as a preventative measure" further research of testimonials from other Nissan owners experiencing the same issue, suggests that the radiator problem seemed to typically occur after 100,000 miles anyways. So how is it that Nissan is ok with leaving their customer holding on to the (crud) end of the stick? I sure hope I am reimbursed for the hefty bill some way some day. (I've not yet pulled the trigger on having the repairs done, as I have been contemplating trading in and giving the problem back to the dealer, but how will this affect the trade in value, and if Nissan's past reputation is diminishing, why do I want to trade in for another Nissan. My passion for Pathfinders has suddenly dropped considerably...time for a new brand maybe.....:-((((( very disgruntled Pathfinder owner, [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Tacoma, WA, USA

When the car reaches speed of 45 mph, it begins to jerk and vibrate and a loud noise starts. If I press the overdrive button to turn it off, the car smoothes out. If I do not turn the overdrive off, once I lower speed or accelerate, it stops vibrating. Diagnosis from mechanic is coolant has leaked into my transmission fluid. Car should have new radiator and transmission put in.

- Brevard, NC, USA

Checked the transmission fluid and it was white milky. Had it checked its a problem with the transmission cooler inside the radiator cracking and letting antifreeze get into transmission and it destroys it and it's up to $5000 to fix and lots of lost time and Nissan isn't doing a thing about it. And there are numerous people on the internet with same problem. Nissan should fix this at no cost to the owner !!!!!!!!

- Dandridge, TN, USA

I purchased my Pathfinder used. With 78,000 miles and within 10 days of having it the transmission dropped completely. Well we took it to the dealer and demanded they make right..they paid our extended warranty never paid for our rental car and never bothered to tell us there was a defect on my vehicle! we were driving and noticed the transmission slipping and the truck vibrating very loud and vigorously when going into 3rd or 4th gear at around 50 mph. But they had told me it was my imagination. Well 10 days from the day I drove it home I guess it wasn't just my imagination because we lost all acceleration power. The truck was running but wouldn't not move. Here I am a year later googling why my truck keeps screwing up and boy what do I find"??" I'm very livid and can't believe that Nissan has decided to fatten their wallets instead of helping it's consumers and making things right. I had a new transmission and new radiator put in. And a year later I'm fighting the same problem all over again. If I'm idle or stay in one spot for a few minutes my truck is over heating and not only that but it's spewing coolant out the reservoir. I have had it in the shop numerous times and no one gives a crap! I was told it was an air pocket and I'm not stupid especially now that I'm reading all the other complaints. This makes me wonder how the government can allow this to continue going on..I can't believe that no help is available to us and we are being screwed royally and our lives in danger because we are forced to drive a dangerous non reliable vehicle!!!!!!! make things right Nissan fix our vehicles or do a recall and give us our money for putting us through [xxx]. information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Scott, LA, USA

Milky substance appeared in radiator and car smoked and smelled. Took to mechanic and reported failed cooler causing radiator fluid and oil to mix. Resulted in cracked heads as engine overheated. Now transmission has failed. Likely due to engine overheating.

- Overland Park, KS, USA

Car having trouble getting up to speed. Now will not start. Dealership says it needs new radiator and transmission.

- Birmingham , AL, USA

The contact owns a 2007 Nissan Pathfinder. The contact stated that while traveling various speeds, the vehicle shifted erratically. The vehicle was taken to the dealer where it was found that radiator fluid was entering the transmission. The vehicle was not repaired. The failure mileage and VIN was not available.

- Haltom City, TX, USA

We started to have a very loud and creeping noise when we put the car in reverse. Sounds like we were pulling something very heavy and the car could not resist it. Then, we also started to notice issues such as a delay in gear changes and more noises now when driving forward or in reverse. We took the car to the dealership today and they diagnosed it with a "broken trans cooler line in radiator which made the coolant leak and mixed with transmission fluid. They want us to replace the entire transmission, radiator, and flush engine block bringing the price close to 7K. I started to research this and I'm definitely adding my complaint and will surely call Nissan to see what options they will give us. 2/20/15

- Mint Hill, NC, USA

I was driving on the expressway and my car suddenly would not accelerate. I made my way to a street location and pulled my car on the side of the road. I shut the car off. It would not start. I had it towed to a mechanic and he said that it is the transmission.

- North Miami, FL, USA

For the past week when ever I drove my car the entire vehicle shudders, shakes and has a harsh upshift when it is changing gears. It happens the most on highways going at high speeds (55-65 miles). I took my car into a Nissan dealership on 1-29-14 to get it checked out. The dealership diagnosed my car with a "broken trans cooler line in radiator which made the coolant leak and mixed with transmission fluid. Advise replace entire transmission, radiator, and flush engine block as well as replace thermostat, (price to fix: $5938 + 9% tax)". I researched this issue online and found this to be a common defect issue that Nissan has been dancing around since 2007, as well as a class action lawsuit being filed against Nissan. I bought the car on July 28, 2011, so I have only owned the car for a little over 2 years in which the dealership I purchased the car from did not inform us of this warranty being offered by Nissan from the lawsuit or informed us of the possible transmission problem. I had the car completely checked out by a mechanic in November of 2013 and it passed with no issues. Now here we are 2 months later, and over 100,000 miles and my Nissan experiences this issue. This can be a very detrimental and dramatic failure, causing massive safety issues if I continue to drive my car, especially on highways going high speeds. I contacted Nissan this morning to see if they are going to stand behind their product and since I am only 11,000 miles over their "warranty" (which has high deductibles), they denied to help and I am left holding a $6500 price tag to fix my car.

- Concord, CA, USA

The trucks transmission slipped while I was merging onto the highway. The truck didn't want to move. It was very scary. I had the whole family with me.

- Lebanon, ME, USA

Was hearing noise from the engine, dealer diagnosed as timing chain guides bad, said this was a "known" problem with this model. 3 weeks after fixing was going to work and the transmission went out, was advised by dealer that coolant had leaked into the fluid from a faulty radiator design on this model...estimated 6000+ for repairs. These are known issues with this model Nissan and the company has offered zero help with correcting this.

- Durham, NC, USA

The entire transmission melted without warning. The car could not move on reverse and only going 20mph.

- Lawrenceville, GA, USA

Calsonic radiator issue - transmission fluid and coolant mixed causing issues with transmission. Bad transmission cooler area per aamco. Nissan is unwilling to help as my vehicle has 126K miles on it. These issues appear to be happening in a much greater % than Nissan is acknowledging. They moved the warranty from 3 yrs/36000 miles to 8 years/80000 miles but it still doesn't help those whose radiator leaked after the 100K level prematurely. This is a safety issue and also a manufacturing defect issue. It seems that Nissan corporate, dealers, transmission shops and other governmental organizations knew about this issue - sadly, most consumers don't. I would have gladly replaced my radiator for $500 but now I will be out $4000 because Nissan didn't tell their owners about this problem.

- Woodstock, GA, USA