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 6 of 14)

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problem #171

Oct 042014


  • 160,000 miles


We are the second owner of the car, a family member was the first and bought it new from a Nissan dealership. One day in October 2014 my husband got in the passenger side and said it felt squishy. He stuck his hand under and could feel rot. We drove the 2.1 miles home and then he looked. That is when he discovered a hole at least 9 inches in the floor. I asked the previous owner if anything ever happened that would cause that and he said so it was never in an accident and the dealer who did all the maintenance work never mentioned seeing a rust spot. Now the hole is huge and is going fast. We have to use this vehicle because we can't afford a new one. Nissan says it is because it is an old car. My 1993 Honda civic (over 210,000 Wisconsin miles on it) and my husband's 2002 Nissan Sentra ser are older and they do not have rust underneath. We have to drive with a window open because the exhaust smell at a stop sign or when the wind is blowing against the passenger side of the car. We have 2 young kids that have to ride in this car as we no longer have the civic and the ser is small. Wish Nissan would own their mistake/design flaw and fix this for everyone. It would look good for them to take responsibility and set a "lead by example" initiative to all car manufacturers.

- Rib Lake, WI, USA

problem #170

Oct 072014

Altima 4-cyl

  • 101,009 miles
The contact owns a 2005 Nissan Altima. The contact stated that the front floorboards on both the driver and passenger sides were rusted through. The contact stated that the vehicle also had a fractured engine mount. The vehicle was not diagnosed or repaired. The failure mileage was 101,009. Updated. 5/28/15 the consumer stated the front floorboard was rusted through. The driver's side was rusty as well. The vehicle was diagnosed but not repaired. Updated 11/23/2015

- Rock Falls, IL, USA

problem #169

Apr 092015

Altima 6-cyl

  • miles
I already paid for rusted out passenger side floor pans and under. Almost $500. They told me it was a design flaw in certain models because of two holes you can visibly see under the car on both sides. Don't know why they designed it like that because what's happening is moisture goes up in there and flows over to the sides of the car under the doors and rusts. My car as not been run in the salt at all and I was told it wasn't necessarily salt but just water that settles and sits because of the design flaw, which has since been changed. I think they knew about this and are waiting for people to get rid of their cars so if they are ordered to do a recall, the numbers would be lower. I want reimbursement for this and the drivers side floor plan checked as well. My car is in excellent shape and had about 76,00 on it when I had the first side done. Thanks and I was denied inspection because of this, stating it was a safety issue! also we just moved back to nh and have been living in southern states because of my husbands job.

- Loudon, NH, USA

problem #168

Apr 012015


  • 132,000 miles


Upon inspection I noticed significantly rusted floorboards below the driver side of the vehicle floor is weak from extensive rust.

- Bluffton, OH, USA

problem #167

Apr 082015

Altima 6-cyl

  • 126,000 miles
I recently purchased a 2005 Nissan Altima for my son who is going away to college. When seeing on the news about the rust issues with the Altima's I immediately went and checked underneath the car to discover that both the driver and passenger side floorboards are rusted through to the inside of the vehicle. The car has been properly maintained and in excellent condition otherwise. Due to the multiple issue in the 2002-2006 Nissan Altima I believe this needs to be a safety recall due to the possibility of exhaust fumes entering the vehicle. At the very least Nissan should provide a goodwill recall and stop trying to push the blame on other issues.

- Great Mills, MD, USA

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problem #166

Jan 072015

Altima 4-cyl

  • 153,000 miles
The bottom of my driver's side floor panel is rusted through to the ground. Underneath the carpet, just behind the gas pedal and brake pedal, the floor metal is completely rusted through. Nothing happened that immediately caused this issue. It seems to be a real problem. It could be very dangerous if my feet were to touch the street while driving and rip my foot off.

- Alexandria, VA, USA

problem #165

Apr 072015

Altima 4-cyl

  • 104,500 miles


The floorboard under the front driver and passenger side is rotted out, centered around the drain plugs. The larger hole on the driver side is 6 inches by 12 inches and still expanding. This design flaw has been reported by thousands of other Altima owners with similar-age cars. The rest of the undercarriage is fine.

- Beverly, MA, USA

problem #164

Aug 162013


  • 60,000 miles
The contact owns a 2005 Nissan Altima. The contact stated that the vehicle's floorboards were rusted out on both the front passenger and driver sides. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 60,000.

- Clinton, TN, USA

problem #163

Mar 112015

Altima 4-cyl

  • 75,522 miles
I purchased a 2005 Nissan Altima for my son in March of 2008 because he was learning how to drive for the first time. The vehicle only had 12,561 miles on it at the time and we really got a good deal on the car. My son has been the only driver of this vehicle from the first day we bought it, and now he uses it at school down in southern Illinois. It has been a great car for him and he is really happy with it. He takes extremely good care of the car, making necessary repairs as they come up along with the routine maintenance. With only 75,522 miles on the vehicle we figured the car would probably last at least another 50,000 miles if not more. Well, it would last that long if the floor boards on the vehicle weren't literally falling out from under him. This vehicle has been diagnosed with the same problem other Nissan Altima owners are experiencing, rotted out floor boards due to rust! I now have to take matters into my own hands to try to fix this problem because Nissan won't step up and assume responsibility for faulty workmanship. We were hoping this car would last another 2 years until my son is done with college but I don't think we're going to be so lucky. He is already experiencing a hole in the floor board under his right heel under the gas pedal. Right Nissan, this isn't a safety issue at all!!! what about if his entire leg goes through the floor board while he's you think that might be an issue"?" we maintain the vehicle and we know that it will last another 2 years but with this floor board rusting problem it may force us to buy my son another vehicle a lot sooner than we really anticipated doing. Thanks for nothing Nissan!

- Gurnee, IL, USA

problem #162

Aug 012013


  • 96,000 miles
The contact owns a 2005 Nissan Altima. The contact stated that the front driver side floorboard was rusted and fractured. The vehicle was taken to an independent mechanic who diagnosed that the floorboard needed to be repaired. The vehicle was repaired; however, the failure recurred on the front passenger side floorboard. The vehicle was taken to an independent mechanic and was repaired. The manufacturer was not made aware of the failures. The approximate failure mileage was 96,000.

- Abington, MA, USA

problem #161

Jan 012010

Altima 4WD 4-cyl

  • 50,000 miles


The floor pan of the passenger and driver's side of the vehicle rusted out after only 5 years of owning the vehicle. It is now so bad that you can push your foot right through the floor pan of the vehicle to the pavement below. I go to great lengths to take care of my vehicles and even rinse the underbody of the car after storms to remove the salt. I've never had a car rust out so quickly and in such a.

- Newton, NJ, USA

problem #160

Apr 072015


  • 142,000 miles
The floorboards in the car have rotted and rusted causing holes in floorboard which is beyond normal wear and tear. The car floor starting rusting about 3 years ago.

- Egg Harbor Township, NJ, USA

problem #159

Mar 242012

Altima 4-cyl

  • 90,000 miles
A few years ago I was alerted by my mechanic that the passenger floor boards were rusting at an advanced rate. My mechanic said the rest of the car was in great shape and it was a shame the floor was failing prematurely. He recommended I take it to the Nissan dealership to see if there was a service recall or a service bulletin. I stopped by the dealership on a Saturday and the service writer looked at the floor of my car and said that he had never seen such a thing on any Nissan. He said there was nothing he could do and recommended we contact Nissan. We contact Nissan and never even got a response. At the time we searched the internet and found numerous people reporting the issue. So I find it hard to believe that Nissan had never heard of the issue. My mechanic has kept an eye on the rust when I am in for service and he has mentioned it is getting worst at a rapid rate and that it is becoming a safety issue. I feel like this design defect and Nissan should be held responsible.

- Savage, MN, USA

problem #158

Sep 012014

Altima 4-cyl

  • 174,641 miles
The bottom of my 2005 Nissan Altima is rusting through to the floor boards. There is about a 10 inch round area on the passenger side where there is excessive rust. I am wondering if it is a defect as I even had rust proofing done at the time the car was purchased. The rust proofing may've slowed the progress but couldn't prevent the problem (and the warranty has expired).

- Waukesha, WI, USA

problem #157

Apr 062015

Altima 4-cyl

  • 99,000 miles
The floor pan on the driver and passenger side has severe rust and has rusted through in some spots. The rest of the car has no other rust problems and is in good shape. I keep my car in good maintenance and don't understand why only these areas are effected.

- Syracuse, NY, USA

problem #156

Apr 062015

Altima 6-cyl

  • 113,063 miles
Front passenger side floor boards are rusting out.

- Downingtown, PA, USA

problem #155

Mar 152014


  • 51,000 miles
The contact owns a 2005 Nissan Altima. While driving at 60 mph, the contact noticed fumes in the vehicle. The contact noticed corrosion and holes on the floorboards of the vehicle. The vehicle was taken to a dealer where it was diagnosed that the floorboards needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 51,000.

- Des Plaines, IL, USA

problem #154

Apr 062015

Altima 6-cyl

  • 92,859 miles
After seeing a report on the news this morning that Nissan Altima are having systematic issues with rusting under the floorboards, I looked under my 2005 Altima, and can see visible rusting under the floorboards. It has rusted, corroded and is flaking off. If you touch it, it falls apart. It has nearly rusted through. I understand Nissan would like to take the position that this is not a design flaw or a safety hazard with these cars, but that does not make sense. If there are hundreds of these cars with the same problem, how could it just be coincidence? I am about to have a child, and do not feel safe driving a child around in this car. I also understand Nissan issued a technical service bulletin with respect to this issue years ago, so they have been aware of the issue but have done nothing to address it for years.

- Darien, CT, USA

problem #153

Apr 012011

Altima 6-cyl

  • 45,000 miles
Defective drain system for water run off has caused passenger and driver side floor pan to rust completely through. There are holes in my floor where feet are placed.

- Chicago, IL, USA

problem #152

Jul 022014


  • 95,000 miles
The contact owns a 2005 Nissan Altima. The contact's foot went through the floorboard when he stepped into the vehicle. The dealer determined that the floorboards and floor pans on the vehicle were rusted through. The manufacturer was made aware of the failure and advised the contact that the floorboards were no longer under warranty. The dealer stated that the entire floorboard needed to be replaced. The VIN was not available. The failure mileage was 95,000.

- South River , NJ, USA

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