This is known problem you refused to force Nissan to recall. At a minimum Nissan should have been required to notify owners of the problem. They did not. My radiator has failed allowing coolant to mix with the transmission fluid destroying the transmission. I have 96,000 miles on my vehicle. I would have gladly paid out of pocket to replace the defective radiator to save the transmission, but since I was not notified of the problem, now I have to potentially replace the transmission.

- Indianapolis, IN, USA

Symptoms began as random hard shifts, then progressed to a sudden loss of power and high rpms. If the vehicle was turned off and on, the transmission would engage and you could drive a couple hundred feet before it began slipping again. I used this tactic of turning it off and on again to get the vehicle off of the highway. Vehicle has not been sent to shop as of yet. Taking a turn, my Nissan Frontier 2007 suddenly stops right in the middle of the street causing traffic jam, I was lucky enough not to be t-boned with my kids seating on the back. Nissan knew about is but never advised costumers about it to open a recall campaign. Need help with this. Truck was bought brand new at the dealer.

- Compton, CA, USA

Radiation system and transmission

- Los Angeles, CA, USA

I was driving down my driveway and my truck just wouldn-??t move i always fill my fluids and get flushes on time when I got my last oil change they said there was milked goo goo in my coolant

- Rouge River, OR, USA

The engine has burning oil for several years now and the safety bag light flashing for 3 months.

- Scarbro, WV, USA

The contact owns a 2007 Nissan Frontier. The contact stated that while his son was driving 65 mph, the vehicle vibrated abnormally with the check engine warning light illuminated. The driver pulled over and called the contact for assistance. The contact drove the vehicle back to the residence. The vehicle was later taken to petro Nissan (6248 us-98, hattiesburg, ms 39402) where the vehicle was diagnosed with a defective transmission and radiator. The manufacturer was notified of the failure however, offered no additional assistance. The vehicle was not repaired. The failure mileage was 114,000.

- Petal, MS, USA

You have to call the dealership Nissan in albuquerque nm on lomas I took the truck in and it's going to be about 5,000 to fix.

- Albuquerque, NM, USA

Leaking coolant mixed with transmission fluid through the cooler lines causing transmission failure.

- Salt Lake City, UT, USA

I had to have the timing chain replaced on my vehicle at a cost of $1550. Nissan put plastic guides for the time chain knowing they would wear down causing the consumer an additional cost to replace this way earlier than most vehicles. After the repair work the Nissan mechanic showed me the plastic guides and there was almost nothing left of it. Very scary to think what would of happened if I was driving the vehicle when the plastic guide wore out. This could of cause serious harm to someone if it had completely warn down while driving. Nissan knew this and has done nothing to fix the problem as all owners of their vehicles are forces to pay the deliberate cost to have the very expensive out of pocket replacement work done.

- Bush, LA, USA

While driving on the highway on 7/13/2019 I felt my truck jerking/tugging which has never happened before. On 7/14/2019 the 'service engine' light came on and the jerking was more noticeable, I made an appointment with the local Nissan dealer for service on 7/16/2019 and I was told that there is coolant mixed in with the transmission and the tcm eventually fried since it is housed inside the transmission, apparently the transmission cooling hoses route to the radiator and the only remedy is to replace the transmission and the radiator. I searched online and found that I am not the only one that this has happened to. The problem

- Salinas, CA, USA

We had just had our oil changed in our Nissan Frontier and had a general check of the vehicle before driving it on a vacation to another state. Everything was in perfect working order. We purchased this vehicle new and it has always been well-maintained. It has 118,000 miles. While driving home less than a week after we left, we noticed that the transmission began slipping and coolant was suddenly leaking from the truck. We also noticed a pink or orange fluid mixed with the coolant. We were >3 hours away from home when this happened. The transmission slippage got worse as we were driving. We were luckily able to make it home and took our vehicle in for service. We found out that this truck has the same problem as other Nissan--coolant mixed with the transmission fluid, causing the transmission to suddenly fail. Now the vehicle is not driveable and were are suddenly left with a very big cost to replace the transmission. This sudden failure of the transmission without any warning is extremely unsafe. We could have been stranded far from home or worse, the transmission could have failed while we were driving, causing an accident. I know that Nissan has known about this problem since 2007 and has failed to issue a recall to fix it and failed to change the design of later vehicles. We had no idea that this was a known problem with our vehicle until it happened to us. Since everything was in perfect working order when we left, we had no reason to suspect that in less than a week, our vehicle would become undriveable.

- Greenwood, IN, USA

Transmission was damage due to water coming from the radiator. Mechanic explained it to me to be a recall

- San Pablo, CA, USA

The contact owns a 2007 Nissan Frontier. The contact stated that coolant leaked into the transmission and the vehicle speed would not exceed 30 mph. There were no warning indicators illuminated. The dealer and manufacturer were not contacted. The vehicle was not diagnosed or repaired. The failure mileage was 75,704.

- Springfield, PA, USA

Transmission failure due to radiator coolant leaking into transmission. Driving condition resulted in sudden hard downshifts and eventually led to a no start condition. Upon inspecting, the at control fuse was blown and when replaced the vehicle cranked, only to have the fuse blow again. The transmission, likely need to be replaced to remedy the issue. This issue is known and unfortunately, little has been done to hold the manufacturer accountable.

- North Charleston, SC, USA

In January 2018 my Nissan was running great....drove to work and when I came out to go home the truck wouldn't start..my truck has been sitting since then..cant afford a new transmission but I was told it is the main board to the transmission..I have power but it will not start.the vehicle remains in my garage...I had no warning before the this happened.had to pay a tow fee straight to Nissan dealer for diagnostic and they told me it was my battery and starter..we \replaced both and still nothing.I sure hope someone can help me because the cost to fix the problem as I was told was gonna be around $4500 they wanna replace the tranmission

- Clinton Townhip, MI, USA

The automatic transmission cooler that is internal to the radiator leaked coolant into the automatic transmission causing excessive friction destroying it. Nissan knew of the problem yet failed to warn owners that they could avoid a $6000 repair by replacing the know defective radiator for less than $1000. Nissan offered a prorated warranty extension of up to 10 yrs/90,000 miles (mine is a 2007 with 88934 so not covered) but only covering a small portion of the cost to replace the transmission. Nissan should be punished for failing to warn owners they could have avoided the transmission failure. A manufacture should have a duty to warn consumers in this case. This could cause a safety issue if the failure occurred in a critical situation. In my case the transmission failed when the vehicle was moving on state highway 460 near narrows, Virginia.

- Salem, VA, USA

The contact owns a 2007 Nissan Frontier. While the vehicle was parked, it failed to start. An unknown independent mechanic diagnosed that antifreeze leaked into the transmission. The dealer (Nissan gadsden in gadsden, Alabama) was contacted by phone, but the vehicle was not taken in for diagnostic testing. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 117,000.

- Albertville, AL, USA

Transmission fluid in the radiator !!itonly has 75 thousand miles original only one owner dealers told me it would be 6,000 dollars plus to fix, please help

- Beavercreek, OH, USA

Nissan recognized leak in radiator, leading to corrosion in transmission resulting in clunking shifting with automatic transmission, until transmission cannot shift by itself. Secret warranty bulletin put out but only to Nissan service centres and not shared with vehicles owners until to late for most. If they recalled or fixed the radiator, would not now need a new transmission repair for ~$7000. Truck will no longer go up hills unless one shifts as if it were manual

- Trail, Bc Canada, WA, USA

When driving my 2007 Nissan Frontier with a 191000 miles and truck starts to slow down, it would down shift rough. Made appt for next day with mechanic. It still being the same day I drove my son to the park and came to a stop, truck down shift was rough again and service engine soon light came on, pushed on gas and truck felt like it lost power. Got to park a block away, turned truck off and it never started again. Towed to a mechanic. $1100 later, mechanic says tow it to the Nissan dealer for a diagnostic because the modular inside the transmission is not working and they can tell what's wrong. I get it towed to Nissan dealer for $90 and $450(3hrs of labor to diagnose truck) later, Nissan said radiator fluid cross contaminated with transmission and ruined it. Also found transmission fluid and engine oil in radiator. So the radiator and transmission needs to be replaced for $6800. Nissan dealer sends me service coupons, flyers to trade the Frontier for newer a model to my house. They also text and call. In 2012 they settled to extend power train warranty because of this problem. Why wasn't I informed of preventative maintence on a known defect.

- Oakley, CA, USA