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

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

When I got out of college the first thing I wanted to do was to buy my dream car. I had been looking into getting a truck and I was debating between my number one choice a Nissan Frontier or 2nd choice Toyota Tacoma. I knew the Tacoma was probably more reliable in terms of minor parts yet I just loved the design of the Frontier and therefore I bought one in 2006 brand new. Ever since it has been my preferred and only way of transportation. I knew that maintaining it was imperative therefore when it came to an oil change, change of suspension trusts, transmission service, change of spark plugs; it was all done at the proper time. Yet my truck started giving me issues 4 months ago when it would shake or shimmer on road and freeway. Did several tire rotations, did suspension change, yet the issue still persisted. It all came down to a screeching halt when I was going up to sequoia national park for a hike with friends. My Frontier all of a sudden started loosing power and then the gears would just not change. Eventually my 'engine service soon' appeared and was forced to stop our trip. Had to hire a tow truck to bring down the truck and upon scanning I got a P1759 code. Upon researching I come to find out this is a common issue with not only this line of truck but also xterra and titan brands. You cannot believe my disappointment. If it were something simple I wouldn't mind but transmission"!? really?!? because of somebodies' mistake when it came to the engineering of the truck?!" and to find out Nissan is just ignoring the issue. Total disappointment and frustration! now I have to wait for our sweet government to take action since this is a perfect example of a major corporation irresponsibility and ultimately.... greed. Be warned all Frontier drivers, your time will come.

- Fresno, CA, USA

While driving, the truck stalled on a hill due to transmission failure. Truck began rolling backwards into traffic. Transmission failure was caused by radiator coolant leaking into transmission. This is a known issue by Nissan, and a safety concern.

- Chimacum, WA, USA

I was driving on the interstate, and then all the sudden the rpms went up and I had no control with the gas pedal, like it was in neutral, I pulled over to the shoulder put it in park, put it back in drive and it started to go again, as soon as I hit 4th gear it did it again. Took it to the transmission shop and the told me it was the radiator leaking into the transmission because of a cracked line. See this has been happening frequently with this model, why no warning or recall?

- Highlands , TX, USA

My vehicle shuddered and felt to slip out of gear while driving! because of this known issue of leaking coolant causes transmission failure. I bought this Frontier with very low miles and was never told of this potential issue from the dealership. It should be a safety recall as it prevents the vehicle from accelerating and if you are driving can cause an accident. I am now reading that Nissan owners have no idea this is happening until too late. Once the coolant is mixed with the transmission fluid this lethal combination kills the valves, seals and torque converter -- rendering your entire transmission useless. I read that this issue is currently contained to the 2005?2010 model years. I have a 2006 with 64K miles! it is only time until this issue causes multiple accidents since this issue happens while cars are driving. Please push Nissan for a recall. I should not have to pay for a known engineering / manufacturing defect.

- Kenmore, WA, USA

Was driving fine up to the point where we seemed to have lost all ability to accelerate. When we pressed the gas, it appeared to be in neutral, although it wasn't. this happened as we drove down the middle of the road. We ended up coasting to the side and put the truck into park, then reengaged the gear shift into drive, it then took off and we slowly drove to a parking lot before it failed again. No warning signs on the dash indicated a problem (still no indication) or any sign of trouble before the transmission just fails. This is a known issue with this year and style of truck and no one made us aware. We have had this truck since we bought it new, never received any notification of the known defect from Nissan. It would have been nice to know the radiator leaks into the transmission and causes transmission failure. We would have had this replaced prior to the failure.

- East Peoria, IL, USA

Brakes cannot be properly fixed due to defective rear axle seals leaking fluid onto brake pads and calipers. Have had all brakes repaired and vehicle still does not brake correctly or safely. I have had numerous close calls due to axle fluid on the rear brake pads.Nissan refuses to provide a recall even though this is a serious safety issue. 2006 Nissan Frontier, 75,000.

- Norwood, MA, USA

I use my truck every day. I started to getting problem with the transmission. I did a diagnostic on the transmission and it came that the transmission is infected and it need to be change. I just got these truck like 4 month ago.

- Houston, TX, USA

The vehicle struggle to accelerate when pressing on the accelerator.

- Sacramento, CA, USA

I was driving on the freeway and notice smoke coming from near (it turns out it was coming from underneath) about few seconds later the check engine light is flashing, my Nissan pickup engine lost some speed and it appears to have lost power as well because it was not accelerating. I took it for inspection to 2 different auto shops locally and have gotten the same reports from both shops.I have a bad transmission and radiator coolant leaks seems to have caused the transmission failure. I have taken my pickup to Nissan after learning about the extended warranty to roseville future Nissan and they seems have agreed about this known issue. They said Nissan has extended the warranty up to 100K miles (so technical it should be covered), however they are asking for 3000K for deductible. I have contacted Nissan Consumer Affairs and they said they are waiting for court to decide on this known issue and will not be able to help until it's resolved. I did some research online and found out I was not the only one having this issue. Please help and advise if I need to take action against Nissan as this is clearly a known issue and they should not be asking for 3K. wheels.blogs.nytimes.com/2011/08/24/owners-of-Nissan-trucks-and-S-U-V-S-report-transmission-failures/.

- Roseville, CA, USA

Whilst trying to drive forward, the vehicle is unable to have enough momentum to drive- in other words the transmission is not functioning correctly. According to the mechanic I brought it to, I was advised that he has seen this happen with this make/model/year before and it is caused due to an issue with the radiator leaking anti-freeze into the transmission system.

- Pottstown, PA, USA

Radiator fluid leaked into transmission due to faulty manufacturing causing transmission to break and be chile to stall.

- Highland , NY, USA