In December 2023 I noticed a bad discoloration of the coolant in my 2007 Nissan Frontier. I took the truck to the local Nissan dealership and had them flush the coolant system. There were no warning lamps or messages. There were no other symptoms or problems prior to that. Receipt available for this service. Then in May 2023 the transmission began shifting extremely hard. Upon checking the coolant it was the consistency of strawberry milkshake. The truck was taken to a local transmission shop and they rebuilt the transmission assembly along with replacing the radiator and flushing the system. This work was completed June 3, 2024. Receipt is available for this service. With continuing to see the coolant have a consistency of strawberry milkshake, I reached out to the local Nissan dealership for them to tell me there had been a recall for this. Upon doing further research, I have learned there actually wasn't a recall but an extended warranty offered that Nissan did not willingly let owners know about. $4,500 later I still have the same problem I started with and am fearful this truck will fail as I'm driving on the highway and am concerned about my safety. Nissan knew when they flushed the coolant in December 2023 of this problem and said nothing. Vehicle is available for inspection upon request.

- College Grove, TN, USA

Radiator coolant leaked into transmission after125,000 miles

- Hurricane, UT, USA

The radiator cracked, leaking water in to the transmission cooler, causing contamination of the transmission fluid. The caused the transmission to instantly malfunction, ruining all internal electronic parts. No warning signs, service lights, etc. before the transmission was damaged. Transmission repair shop says this is very common and is going to cost $3900 to repair the vehicle.

- Walhalla, SC, USA

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

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

I, just found that Nissan had a malfunctioning in the 2007 Nissan Frontier pick up trucks. I, have 2007 Nissan Frontier LE truck where my transmission has been acting up. Have, to give it alot of rpms for it to take off, but once it gets going its does ok. Keep, in mind it doesn't down shift down at all and the OD light stays on. Could, you please help me" Could, it be a blown fuse" My, cell is [XXX] email is [XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Columbus, GA, USA

2007 Nissan Frontier crew cab: Entering the 100,000 mile marker the truck started to feel like it was skipping. Then the truck stalled while at the grocery store. I tried to get it started and after 15 minutes it did start. Aaa tested battery, starter and alternators. They were all fine. Later drove truck to continue grocery shopping and it stalled in the main traffic lane. Pushed truck to safer place. Then it started again. Autozone computer test revealed sensor P)335 and a recommendation to replace flywheel. Internet search revealed issues with power train and anti freeze entering the transmission due to faulty parts. Nearly 3000. Reports of same issue. Disappointed that Nissan did not take responsibility for their use of compromised materials in building their cars and trucks. If Nissan is using faulty or weak materials, then might as well buy american.

- Chula Vista, CA, USA

I bought the 2007 Nissan Frontier off a dealership as a used vehicle with no warranty. One week later the transmission started to slip, the following week the slippage was worse until it lost power and it left me stranded in a parking lot. I took it to my mechanic and he said that it's a possibility that the transmission computer had gone out and it would be close to $5,000 dollars to replace the transmission. The transmission fuse keeps blowing out once the truck is started. The mechanic said it could be a possibility that it was cross contamination since Nissan was known for faulty radiators. So I'm stuck with a truck payment through a loan with a transmission out and I can't even drive it. There are thousands and thousands of complaints online from people having the exact same issue.

- Modesto, CA, USA

I bought a 2007 Nissan Frontier from a car dealership in boise Idaho called larry H miller I purchase a vehicle and about a month later I noticed it was making noise coming from the rear end come to find out what is the transmission of the radiator falters and I had coolant in my radiator and my radiator coolant in my transmission I called larry H miller and there was a $500 copay to pay before they would even look at it I did not have that kind of money sticking around it's not in my paperwork anywhere about a $500 copay it was under warranty at the time of fault and approximately six months later the truck went totally blank transmission went totally out I from when I understand I'm stuck with it I just want to know if meson would be responsible to to pay for the transmission sit in my driveway and I'm being garnished for the vehicle as we speak. The noise that it would make his as if somebody would ran over a rumble strip and that noise started between 43 and 48 miles an hour

- Caldwell, ID, USA

Transmission and coolant fluid contamination due to faulty radiator!

- Glendale, NY, 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

Complete transmission failure including engine radiator due the Nissan design.

- Phoenix, AZ, 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

Transmission contaminated with engine coolant @ 81,000 miles. Catastrophic transmission failure, engine overheated and the vehicle quit moving. Occurred while in motion on a rural road and vehicle had to be towed home.

- Doswell, VA, USA

Coolant got mixed in with transmission fluid and truck stopped running.

- Aztec, NM, USA

My name is mrs.[xxx]. on 5.29.2019, my vehicle's transmission failed as a result of a manufacturing defect. I took my vehicle to aamco and had it repaired at a cost of $5,258.45. While my vehicle was being repaired I discovered there are numerous tax paying consumers who have experienced the same mechanical failure. I, also, discovered despite knowing about this problem, Nissan has refused and/or failed to recall these vehicles or notify the owners about these potential dangers. Had the corporation notified the owners the major transmission. Failure could have been averted with a simple procedure at a cost of $700- $1,000. Instead the company kept silent about the issues. As a result american consumers have been footing the bill for Nissan's defect, to the toon of thousands of dollars. I contacted Nissan's CEO seekng reimbursement for the $5,258.45 out of pocket expenses it took to fix Nissan's manufacturing defect. I was referred to the Consumer Affairs department by CEO hiroto sarkawa. Consumer agent [xxx] id # [xxx] initially denied my request verbally alleging that because I took my vehicle to an outside mechanic I am not eligible for rereimbursement. However in writing she claimed Nissan was unable to offer financial assistance with the repair of the transmission due to the vehicle being outside of your new vehicle limited warranty information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- San Pablo, CA, USA

At 132,000 miles my transmission and radiator failed at the same time. I have come to understand that this is a known defect in Nissan. I did not know this was an ongoing problem with Nissan. The cost to repair is going to be more than $5000. This is terrible.

- Norco, CA, USA

Transmission failure

- Hudson, NC, USA

We are a auto dealer in Ohio. After purchasing a 2007 Nissan Frontier crew cab 4X4 at the auction, we did a post sale inspection and it passed. We brought it home and did a 60 point inspection, outside of an airbag light issue, it passed once again. One week later, the transmission is shot. After a transmission shop called me today and said $3000 to replace transmission, I found out this is a common problem that Nissan will not be accountable for. I am looking for any and all assistance. This quote sums it up well, 'simply extending the warranty coverage for the radiator without warning consumers of the consequences to the transmission only makes sense if Nissan is looking to cut their losses. Why didn't Nissan warn consumers that the transmission could fail quickly as a result of a cracked cooler tube" how many consumers must suffer transmission failures in busy intersections and on busy, congested highways before Nissan does the ethical thing and issues a safety recall"'.

- Poland, OH, 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