Notes: The 2005 Nissan Altima has two fairly significant problems with the floor pan rusting through & motor mounts breaking.

Altima owners report that up to a basketball-size hole develops under the floor mats where the floor pan metal rusts through. Average repair cost is over $1,000.

The broken motor mounts are less of a problem - they break at ~75,000 miles average & it's $400 to fix. Still, motor mounts should not break!


really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
3 / 0
Average Mileage:
93,955 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2005 Nissan Altima body / paint problems

body / paint problem

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2005 Nissan Altima Owner Comments (Page 11 of 14)

« Read the previous 20 complaints

problem #71

Jul 102013

Altima 4-cyl

  • 121,200 miles


Went to get an oil change today for car and when the car was on the lift I had noticed some discoloring in the floor under the passenger and driver side of the vehicle. After inspecting it, the floor board seems to be completely rotted/rusted through and you can see the inside of the car. This seems to be a very big safety issue. Exhaust fumes can enter the car while in park or stopped. A foot can go through the floor and cause a very dangerous situation. This is a body defect that needs to be addressed.

- East Meadow, NY, USA

problem #70

Jun 182013


  • 99,817 miles
The contact owns a 2005 Nissan Altima. The contact stated that the vehicle was taken to an authorized dealer for an unrelated issue and they noticed there was a hole covered with rust on the front passenger's side floorboard. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 99,817.

- Weston, MA, USA

problem #69

Jul 052013

Altima 4-cyl

  • 112,828 miles
Car was bought in Utah and used in Utah and Colorado mainly. The driver side floor pan is rusted through and needs fixing / replacement. This is a structural safety issue. Car is less than 10yrs old and shouldn't show this issue this early.

- Castle Rock, CO, USA

problem #68

May 202013

Altima 4-cyl

  • 120,000 miles


Nissan is garage kept with no rust on vehicle. Muffler on since 2006 and floorboards completely rusted through - muffler still good. Contacted Nissan Consumer Affairs and they would not cover. Paid dealer $1755 to repair since cheaper than new car and will drive until wheels fall off. Since no injuries yet, is this the reason nothing is being done. Seems to be many complaints on Altima from 2003-2006. Check out youtube -

- Mundelein, IL, USA

problem #67

Jul 012013


  • 104,000 miles
2005 Nissan Altima floor boards have rusted through which can lead to exhaust fumes entering the car, a safety issue. The floor panels should not rust completely through in 9 years. While living in new england does expose the car to salt, I would go through the car wash on a regular basis. During a routine oil change, I was informed the car would not pass inspection and that there were holes in the floorboard. I took photos documenting the issue. The rest of the undercarriage is in good shape but the area under the floor boards is completely bowed out and eaten through. This is shoddy materials and (lack of) craftmanship. I have seen many other similar issues posted to the database and wanted to lodge a complaint as part of my claim to Nissan. I have also replaced the oil pan which is also quite prone to rusting quickly.

- Newport Ri, SD, USA

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problem #66

Jun 252013

Altima 6-cyl

  • 155,000 miles
Rust holes in driver and passenger floor boards due to design flaw.

- Ballston Spa, NY, USA

problem #65

Jun 192013

Altima 6-cyl

  • 165,000 miles


During my ri state inspection today, I was notified that my driver side floor board was completed rotted through. My car will not pass inspection without fixing that. The car is only 8 years old so having that much rot is very unusual. Will Nissan repair this damage or reimburse me for the cost of repair?

- Barrington, RI, USA

problem #64

Jun 172013

Altima 4-cyl

  • 75,000 miles
Both the drivers side and passenger side floor pans have rotted through.

- Cedar Grove, NJ, USA

problem #63

May 302013

Altima 4-cyl

  • 119,000 miles
Floorboards on Nissan completely rusted from outside in. Carpeting inside of car still looks like new. Numerous complaints on vehicles of this year, but Nissan consumer complaints will not cover cost of repair. Purchased the car new in May 2006 - was 2005 model. Summer 2009 put a bike hitch on car and muffler bolts were rusted but underside of car still looked great. Muffler still on the car, but floorboards completely rusted through. Almost $2000 to repair. Car was never in accident, never in flood and always cleaned and maintained. I found a piece, almost a sheet of rust on the floor of my garage. Undercoating on the piece was still there, but rust couldn't hold it together any longer. When pointed out what this actually was shocked. Feet on the pavement when driving was the next step. See video

- Mundelein, IL, USA

problem #62

May 012013

Altima 4-cyl

  • 0 miles
I have a 2005 Altima with 49500 miles. When I recently got new tires, it was discovered that the front passenger seat floorboard was completely rusted. This is a safety issue, whether its fumes getting into the car or debris from the floorboard falling in the road. I contacted Nissan national and they sent me to a Nissan dealership to get an estimate and have it sent to Nissan national. Nissan national said my issue would go to Nissan consumer review, who decided the floorboard rusting out was environmental. Are car owners in wintry states forewarned that if they have a Nissan the floorboards might rust out? my car is clean with no other rust.

- Clinton, MA, USA

problem #61

May 022013

Altima 4-cyl

  • 100,000 miles


Noticed floor pan on passenger side of my 2005 Altima has rusted out. The hole is clean through to the inside of car. Approximate 8" hole.

- Cynthiana, KY, USA

problem #60

May 022013

Altima 6-cyl

  • 85,263 miles
Brought my vehicle in for state inspection to local Nissan dealership and was told the floor boards were too soft to pass inspection. Inspected the vehicle more closely myself and noticed the floor boards had been rotting. The vehicle only has 85K on it. Heard this is a major problems with a lot of Nissan Altima and felt I should report this since Nissan has done little or nothing to fix the problem which is a major safety hazard since I'm not one of the flintstones.

- South Portland, ME, USA

problem #59

Jan 102013

Altima 4-cyl

  • 75,000 miles
The wheel well liner on the front passenger side came loose and after flapping against the tire, road, and engine compartment; became totally disconnected and fell onto a county highway. It was replaced by a Nissan dealership's mechanics, and three months later the same thing happened on a city street!

- Vacaville, CA, USA

problem #58

Mar 282013

Altima 4-cyl

  • 126,000 miles
Owner of 2005 Nissan Altima. Two weeks ago mechanic had up on rack for oil change. Brought to my attention significant rusting of both driver and passenger side floor pans. I called Nissan and filed a claim, but vehicle is out of warranty. While they were sorry to hear I was having this problem, they would not help me. The Nissan representative I talked to said he had never heard of this problem before. I don't believe that due to the number of posts on nhtsb website and other blogs. It is a design flaw that leads to a safety issue. I think Nissan should stand behind this repair.

- Swisher, IA, USA

problem #57

Oct 152012


  • 120,000 miles
The contact owns a 2005 Nissan Altima. The contact stated that the driver's side floorboard would become wet whenever it would rain. The contact ran water down the windshield and opened the hood to see if water was entering through the dashboard area, but to no avail. The vehicle was not taken to the dealer for inspection. The VIN was not available. The failure mileage was 120,000 and the current mileage 134,000.

- Dripping Springs , TX, USA

problem #56

Apr 012013


  • 94,884 miles
I have Nissan Altima 2005. I took my car to get inspected and it failed due to rust and rotting under the car. Nissan, does not repair this. In doing research I have found numerous of individuals online with the same problem with models from 02 - 06. All of Japanese cars will have this problem. I had my car from 05 brand new, I'm the only owner with no accidents. I think Nissan should do a recall on all cars with this problem and fix it. They charge you all this money for cars, they know soon will have this problem, because they don't protect the car with the under coating. Shame, shame, shame on Nissan!!!

- Fredericksburg, VA, USA

problem #55

Mar 232013


  • miles
Went to get my first inspection after purchasing the car and it failed and I could not get sticker. It failed because I have large rust holes on both the drivers and passengers side floor pans. On the driver side, the carpet is exposed to the underside of the vehicle which presents a safety risk as my foot could go through it while driving.

- Chalfont, PA, USA

problem #54

Feb 282013


  • 173,703 miles
Vehicle was in for repair at local automotive repair shop for crankshaft position sensor replacement. During repair, mechanic had vehicle up on lift and noted severe rust to the floorboard area of both driver and passenger side. Rust damage is so severe it is rusted all the way completely through. Upon my personal investigation via the internet, I found numerous complaints from other individuals noting the same severe rust damage to the same location (floorboard) of their Nissan Altima as well. It is my opinion that this is a safety issue and should be addressed immediately by Nissan.

- Charleston, WV, USA

problem #53

Mar 142013


  • 122,000 miles
I just discovered that the floor boards of both passenger and driver side in the bottom is fully rusted. It seems after looking on line that I am not the only owner of the 2005 Altima with the same issue in which could lead to a safety problem with the structural integrity of the vehicle.

- Ashland, MA, USA

problem #52

Jul 242012


  • 86,000 miles
I had discovered the floor on the passenger side of my Altima rusting through from the inside. When originally purchased new the auto was discover to have a water leak soaking the carpeting on the drivers side and the passenger side of the car. Nissan (dealer) had indicated that they found the source of the leak but evidently had not with the floor rusting through from the inside of the vehicle as stated. It seems after looking on line that I am not the only owner of the 2005 Altima with the same issue in which could lead to a safety problem with the structural integrity of the vehicle.

- Oconomowoc, WI, USA

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