The contact owns a 2006 Nissan Frontier. While driving 60 mph, the rpms elevated to red and the speed decreased. The engine warning indicator illuminated. The vehicle was taken to an independent mechanic who diagnosed that the coolant leaked into the transmission and the transmission, radiator hoses, and radiator needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 79,000.

- Baltimore, MD, USA

When I drive on highway, my 2006 Frontier is shaking or vibrating even if I completely stop, I have 118,000 mileage. I went to my dealer and change the spark plug, change the valve gasket cover, and do oil change because the service engine went on. I did finished the service, my service advisor called my phone and he said that my truck is ready for pick up. I arrived, went to the cashier I paid $748 for the service, got my truck. Then I drove after a munite the shaking issue is still thier so I called my advisor, he advised me to bring back and do diagnos test for $150. After the diagnose test they said they found missing accelaration and need to replace 4 ignition coil for $1114 parts/labor. Unfortunately I paid $749 for the recent repair, so, because I spent a lot of money for the first repair, he only want me do 2 ignition coil replaced for $775 parts/labor

- Waipahu, HI, USA

In February, 2017, the radiator on my Nissan Frontier failed. Due to a design flaw, coolant got into the transmission which ruined it. The radiator had to be replaced and the transmission rebuilt at considerable expense (approximately $6K). The radiator failure occurred on the road and I was able to limp to a service station. Fortunately, the transmission failure did not occur on the road but could have causing a very dangerous situation.

- Burke, VA, USA

My transmission began slipping slightly and when the fluid was checked, we noticed that there was radiator fluid getting sucked into the transmission. Shortly after that was noticed, the transmission completely stopped shifting and left me stranded on the side of the road. It has 100,000+ miles on it so the warranty will do nothing for me and neither will the class action lawsuit that I've found some information on therefore, it has been sitting in my driveway for over a year because I cannot afford to have it fixed at this point.

- Virginia Beach, VA, USA

While driving my 2006 Nissan Frontier the truck would not respond to the accelerator being pressed and then began jerking. The check engine light came on and it has been doing this for a couple of days. I took it to my mechanic and he said is was the radiator leaking into the transmission and destroying the transmission which Nissan knows about the defct but has chosen not to fix. If I was traveling at a high speed on the interstate and the truck did not respond to the accelerator and started to jerk a collision would have happened. The fact that Nissan knew about this defect and chose not to inform me of the problem causes considerable alarm.

- Metairie, LA, USA

The truck hesitated to move at a stop. (it dragged really hard and it was slow) per my son described, not sure if he was on the freeway or the street when this happened. I took the truck to my mechanic. On tue October 25, 2016. After diagnosed, he told me the transmission was failed. It needs to be rebuilt or buy a new one. The cost for a rebuilt one is $2,800 and a new one from Nissan dealership is $5,000. I decided to go for a rebuilt one. This happened on tue October 25, 2016. This truck I bought used in March 2016 at 114,674 miles for $10,000. I went on line to search for something related to Nissan Frontier 2006 transmission and I found out the website relating to the class action lawsuit. I did contact Nissan of North America on Wednesday October 26, 2016 and they told me to send in the invoice after the repair for reimbursement. Until the reimbursement takes place, I am still nervously waiting.

- Garden Grove, CA, USA

Driving on a trip transmission started slipping and jerking. Had to drive slow in third gear with it still slipping. Radiator fluid was foamy. Truck still in driveway. Four to five hour trip on highway with some hills didn't think I would make it home. A few years back we received a service notice of failed radiator. Took truck to Nissan and they would not replace unless there was a problem.

- Steele, MO, USA

The contact owns a 2006 Nissan Frontier. While driving up an incline at approximately 35 mph, the vehicle jerked without warning. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the radiator was leaking coolant into the transmission and the transmission and radiator needed to be replaced. The radiator was replaced, but the failure recurred. The manufacturer was made aware of the failure. The contact stated that when the ignition was turned to the on position, there was an abnormal noise coming from the radiator. The vehicle was taken back to the dealer where it was not diagnosed or repaired. The failure mileage was approximately 133,000.

- Ocala, FL, USA

There is a recall on the 2006 Nissan Frontier coolin leaking in to transmission

- Owensboro, KY, USA

The contact owns a 2006 Nissan Frontier. While driving 50 mph, the vehicle stalled. The contact stated that the accelerator pedal was depressed and the vehicle failed to respond. The vehicle was taken to the dealer to be diagnosed. The contact was informed that there was fluid contamination in the transmission. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 105,000.

- Sacramento, CA, USA

The automatic transmission cooling lines were compromised in the radiator. Coolant contaminated the automatic transmission fluid and ruined the transmission specifically causing the relay in the transmission that is connected to the starter circuit to malfunction. There was therefore no warning that anything was wrong until the truck simply would not start. The quote from the dealership is $6,600. This is particularly frustrating because 6 months ago I paid for a full inspection of the vehicle and though this is a known issue that is preventable, there was no mention of it in the report.

- Tybee Island, GA, USA

The contact owns a 2006 Nissan Frontier. While driving approximately 40 mph, the transmission gears stopped shifting and the engine revved and made a loud noise. The contact drive the vehicle in first gear to an independent mechanic who diagnosed that the transmission needed to be replaced. The contact did not notify the manufacturer. The approximate failure mileage was 95,000.

- Philadelphia, PA, USA

Transmission failure: Atf contamination. Radiator fluid mixed into transmission, therefore ruining both transmission and radiator.

- Signal Hill, CA, USA

I bought the truck from a private party. As it was not registered, I have not tried. I subsequently overview, that the transmission was not normal. I looked at the worst default of the Frontier on the internet and I find that everyone has a problem radiator crack leaked into transmission fluid. I have been to the garage. They said there was coolant in the oil transmission. I had to replace the transmission and radiator coolant radiator bypass. It cost me $ 2,408 cad

- Jonquiere Quebec,Canadag7x7v4, DC, USA

According to the mechanic, the transmission coolant reservoir (which is connected to the radiator) collapsed causing water, antifreeze and transmission fluid to mix. These fluids then made their way into the radiator, transmission and coolant reservoir. This, in turn, caused extensive damage to my transmission. My transmission then required replacement/rebuild. The first possible sign of the problem was rough automatic shifting of the vehicle. I then noticed a leak of transmission fluid from the front passenger side of the vehicle (which was parked in my driveway). This was followed by a loss of power/drivability.

- Johnson City, TN, USA

I bought the truck and less than a week later I noticed a weird rumbling noise at around 35-50 mph and 1-2 rpms. One time while I was by myself in the mountains scouting for an elk hunting trip, the truck would not go into reverse. This could have been very bad as I was isolated otherwise deep in Utah mountains in the fall. Took the truck in and found it was transmission failure just like everyone else had written about on the internet. Extended warranty replaced transmission for $100. 6 months later, I was still nervous about the issue and before a big trip I did some more research. People with similar problems were pointing at the radiator and warned to check it for transmission oil contamination. Checked it last night and the radiator is full of transmission oil. Truck is currently in the shop.

- Midvale, UT, USA

I purchased a used 2006 Frontier. The dealer told me they do not check for recalls on non Ford vehicles. After 5 months and five miles, the radiator apparently caused my transmission to fail. When it failed I was making a left turn in front of traffic and lost control of the vehicle and was almost collided into. The Nissan dealership says this is a recall that since the previous owner didn't have it performed, and the dealer didn't do anything that I'm liable for $5500 in repair.

- Woodinville, WA, USA

Transmission slips and the first gear so rough

- Alexandria, VA, USA

The transmission is shifting hard and I believe I have I have a similar problem that is common for this vehicle. The radiator fluid is foamy and dis-colored which I have found to most likely be tranny fluid getting into my radiator, and coolant getting into my transmission, which the way it looks, means I need to replace my radiator and transmission. I cannot contact the dealership I bought it from to help with repairs because they closed their doors... only had this truck since 2/8/2016

- Bend, OR, USA

Cross contamination of coolant and transmission fluid due to factory defect in radiator. Began with no heat suddenly in the middle of January. No check engine light to warn of issue. Changed out the thermonstat and noticed the strawberry foamy liquid in the radiator then search 2006 Nissan transmission problems on line. Vehicle also stops and starts very, very, slowly in intersections, on ramps.

- Bailey, CO, USA