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 10 of 14)

« Read the previous 20 complaints

problem #91

Dec 242013


  • 116,000 miles


Floors on both driver and front seat passenger sides of my 2005 Nissan Altima are rusted right through.

- Shelton, CT, USA

problem #90

Dec 032013

Altima 4-cyl

  • 96,000 miles
During a routine tire rotation, my mechanic noticed that both of my floor boards are rusted through. I have only owned this car for two years. I have seen several complaints on the same issue from other people.

- Holland, MI, USA

problem #89

Nov 302013

Altima 4-cyl

  • 68,834 miles
Floorpan on this vehicle is completely rusting through! car has less than 100K miles on it and was a car-fax one owner!

- Strasburg, OH, USA

problem #88

Oct 062012

Altima 4-cyl

  • miles


My floor of my car has rusted out. I have taken my car to Nissan for regular maintenance at the dealership where it was purchased. The floorboard has rusted so bad it is not safe to put anyone in the passenger seat. This car is well cared for, garaged nightly, washed weekly and all maintenance appointments kept. It has one driver over age 60 so it is not used for speed or derby driving. I did not build this car and as I am not an auto service person would have no way of knowing that my undercarriage and floorboards were rusted to the point of being a safety hazard. They have placed my car on the blocks and lifted every time yet never told me there was a problem. This is negligence of the highest form and they did not want to cover this under warranty so they remained silent about a known safety issue. As a layperson I have been fraud and my safety jeopardized for the sake of saving a few dollars. I will now take this problem public to any and everyone who will listen. I ask and encourage the NHTSA to hear the complaints of consumers and require Nissan make this right. Obviously these floorboards were not treated for rust protection. I am not a litigious person but will now seek to become one as a result of this grave act of negligence.

- Joliet, IL, USA

problem #87

Nov 132013


  • 98,000 miles
The contact owns a 2005 Nissan Altima. The contact stated that while having an oil change performed, he was notified that the floor boards on both the passenger and driver's sides were completely corroded. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 98,000.

- Parkville, MD, USA

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problem #86

Oct 242013

Altima 4-cyl

  • 70,000 miles
After reading some blogs about people discussing Nissan Altima floorboard rust issues, I checked my 2005 Altima ser and noticed that both the driver and passenger side floorboards are rusted through. This vehicle has been parked in a garage and has been well maintained. It appears that numerous people have reported this problem to NHTSA and to Nissan but Nissan has not issued a recall. This is a safety issue because exhaust fumes can enter the cabin.

- Cooper City, FL, USA

problem #85

Oct 112013


  • 101,000 miles


Rusted floorboards.

- Sun Prairie, WI, USA

problem #84

Oct 112013

Altima 6-cyl

  • 104,704 miles
Undercarriage rust (2005 Altima 3.5 SE) - thankfully I went to get my oil changed at a new place where they use a lift versus just servicing from underneath the service deck.once the car was raised, the mechanic noticed my passenger side floor board was completely rusted through!! my uncle had just told me he experienced the same thing with his 2004 maxima. After searching the internet, this is a very common problem for us Nissan owners. I find it so hard to believe Nissan will not issue a recall for this known problem. How can the cars not have any rust anywhere else, but specific passenger and/or driver undercarriage areas?? what a safety hazard! please take responsibility Nissan and do the right thing!!

- Round Lake Beach, IL, USA

problem #83

Sep 012013


  • 74,000 miles
The contact owns a 2005 Nissan Altima. The contact stated that the floorboards were rusted. The vehicle was taken to the dealer where the failure was confirmed. The manufacturer was contacted about the failure. The failure mileage was 74,000.

- Cranston, RI, USA

problem #82

Sep 202013


  • miles
Took car for state inspection only to find out that my drivers side floor board is completely rusted through to the carpet. This is a serious safety issue Nissan should have addressed a long time ago.

- Dover, PA, USA

problem #81

Mar 282013


  • 82,500 miles


Recently while getting new tires installed at a tire shop, I was informed by the service technician that there was floor pan rust on both the driver and passenger side of my car. This rust couldn't of happened overnight since the rust is about to break through the carpet as if it were a 15-20 yr. Old car. The rust is located in the same spot on each side by the driver and passenger floor mats. On a shop lift you can see that the rust initially formed on each side where the drain holes were installed. At Nissan's request, I took my car (bought new) to the nearest Nissan for inspection. My complaint with Nissan corporate was that there should be a recall on floor pan rust as it is a safety concern I.e the seat can malfunction and also carbon dioxide could get inside the car. I also mentioned that I was aware any kind of rust was out of warranty and that the reason for the rust has nothing to do with living in high salt state. After extensive research, it became apparent that this has to be a design flaw by Nissan and that there are thousands of complaints on mainly 2nd gen. Altima having this adv. Floor pan rust in the exact same areas!! if the rust was sporadic, then salt would most likely be a cause, and if wet snowy shoes was the problem then there would be rust under the rear floor pans. As a result, as noted on the Nissan forum website, a more valid cause is design flaw, drain holes were improperly installed allowing water to congregate and rust to form. After Nissan investigated my file, they stated that there was nothing they could do to help. Not even partial reimbursement. I find this unbelievable and unacceptable.this 2nd generation Altima floor pan rust is so common that even my neighbor's 05 Altima has the same rust spots as well. What also disappoints me is that I have had all of my oil changes done by Nissan and rust was never mentioned once.

- Streamwood, IL, USA

problem #80

Aug 282013

Altima 4-cyl

  • 132,000 miles
Floor board on passenger side front has rusted severely. My car has been in for service to hoffman Nissan in West simsbury ct at least twice every year and they never mentioned a problem. This is now a safety issue. I was made aware of the rust after I had an oil change at the local garage who recommended an auto body shop down the road. I had the auto body shop look at it today 8/28/13. They told me that this problem has been ongoing for 3 to 5 years. They told me that every time it was put on a lift it was obvious. What do they look at for safety?? every visit for scheduled maintenance I am told that I need additional work - always over $500 worth. I am convinced this was is a defect that should have been taken care of years ago. How many repairs did I approve that didn't really need to be done. Sad to say that I will never again trust the hoffman dealership. The consumer stated the dealer has done an amazing job at trying to resolve the floorboard rust board. The dealer and the consumer came to an amicable agreement on the repair of the floorboard.

- New Hartford, CT, USA

problem #79

Aug 012013

Altima 4-cyl

  • 99,867 miles
Took my Altima in for service and mechanic informed me and showed me that both passenger and driver floor boards have rusted through.

- Marlborough, MA, USA

problem #78

Aug 222013

Altima 4-cyl

  • miles
The front passenger side floor panel rusted completely through from the inside out. Large gaping hole underneath the carpet. Vehicle has been garaged since new. Weather conditions during winter months have been mild. Vehicle was pa inspected December 2012 and passed then. Defective structural sheetmetal steel. Other similar complaints on record through NHTSA.

- Lansdale, PA, USA

problem #77

Aug 072013


  • miles
There is a rust hole on the passenger side and the carpet is lowering down. I am not sure how to get it fixed. Seems like many other have the similar issue.

- Duluth, GA, USA

problem #76

Aug 072013

Altima 4-cyl

  • miles
The floor-boards on the 2005 Nissan Altima are clearly defective. This vehicle has been garaged ever since day one, and has been taken care of extensively. Two giant rust holes on the driver and front passenger floor-boards have developed due to poor materials and design. This is a serious safety concern and shouldn't be overlooked. The rust affects the vehicles crash tolerance, and structural integrity. Nissan should be held responsible, and should issue a recall to fix the defective floorboards.

- Ypsilanti , MI, USA

problem #75

May 202013

Altima 4-cyl

  • 90,090 miles
The contact owns a 2005 Nissan Altima. The contact stated that the frame was rusted. The vehicle was taken to the dealer, who confirmed the failure. The manufacturer was contacted about the failure. The vehicle was not repaired. The failure mileage was 90090. Upated 09/17/13

- Newark, DE, USA

problem #74

Jun 012013


  • 135,000 miles
I have rust holes in the floor panel of my 2005 Altima. It will not pass inspection and while driving the hole is big enough that I can feel it under my foot through the carpet. I talked to my mechanic about a fix and he said he has done about 8-10 of these cars for the exact same problem. Looking online, this is a common flaw that many Altima owners have and it is an incredible safety concern. There should be a class action suit against Nissan based on the responses they are giving people who are asking them for help with the repair.

- Chalfont, PA, USA

problem #73

Jul 152013


  • miles
Went to get an oil changed and when completed the technician told me there was corrosion and rust 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. He told me that it's wear and tear and maybe an autobody shop can fix it or I should trade in as soon as possible. This seems to be a design flaw and a very big safety issue. This is a body defect that needs to be addressed. Why doesn't Nissan realize this is not just one case.

- Somerset, NJ, USA

problem #72

Jul 112013

Altima 6-cyl

  • 149,000 miles
I just noticed that floorboard are extremely rusted and rotted. I probably not noticed and this has happened long time ago since rust is that deep. Need help.

- Dublin, OH, USA

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