The passenger‑side airbag warning light first appeared within the first year of ownership. During that visit, the dealership did not repair the defect. They only reset the warning light and told me it was not a problem. No diagnostic documentation or repair explanation was provided, and the underlying issue was not addressed. The warning light returned in April 2026, showing the same unresolved defect. The dealership stated the repair would cost approximately $2,000 and said neither the Certified Pre‑Owned warranty nor the extended warranty would cover the airbag system. This contradicts the nature of the failure and the prior visit, where the defect was dismissed instead of repaired. This is a repeat failure involving a federally regulated safety component. The airbag system may not deploy properly, and the vehicle has been operating with an unresolved safety defect since the initial visit. The problem has been confirmed by the dealership, and the warning lamp continues to illuminate. The defect has not been corrected by the manufacturer, despite multiple attempts to seek assistance.
2018 Nissan Altima airbags problems
36 complaints (16% of all complaints for this car). Typical mileage when it fails: 37,955. 2 crashes reported.
- owner complaints
- 36
- of this car's complaints
- 16%
- typical mileage
- 37,955
- crashes
- 2
- recalls
- 0
Which part fails
- Sensor: occupant classification1
At what mileage
Complaints by mileage at the time of the problem.
Nissan Altima airbags problems in other years
Specific symptoms reported on the 2018 Nissan Altima airbags
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
EA21002
What 2018 Nissan Altima owners say
Most recent owner complaints, unedited.
The warning light on the dash is indicating that there is a problem with the airbag. I took it to a Nissan Dealership and was told that the side airbag needed to be replaced. I was quoted $3,241.41labor only. I was told there was no recall. I certainly don't want there to be a collision and it doesn't deploy as it should. So I would like to report this issue in the event this has happened to others.
While driving my Nissan Altima 2018 on Sunday 2-1 the indicator light came on. I looked it up in the manual to the car and it stated it was something with the air bag. I took it to the Larry Miller Nissan Mesa AZ. Wednesday, 2-4. According to them I was told the light indicated the air bag would not deployed if I were in an accident. That is life threating. This is report I got from them: They checked for codes found code B0020-13 store din air bag followed the diagnosis procedure as per the ESM to inspect the air bag seta harness to be okay connected first step is to replace the LH side air bag module as per the DTC. They told me it would cost $3,247.44 to fix. I know there was a recall on the air bag for my make and model but unknown to me when it was posted. My car have always ran like a new vehicle to this day until this happen. It should be considered a manufacture issue and should be repaired by the manufacture.
See attached document for complaint.
1. What component or system failed or malfunctioned, and is it available for inspection upon request? The driver seat airbag module is defective and requires replacement. It is available for inspection at Northlake Kia or any authorized Nissan service center upon request. 2. How was your safety or the safety of others put at risk? The defective driver seat airbag module may fail to deploy properly in a collision, placing the driver at serious risk of injury or death. This defect also endangers passengers and other road users in the event of an accident. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The defect was confirmed by Northlake Kia on August 29, 2025 during vehicle inspection. The dealership stated that the part is defective and must be replaced immediately. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by Northlake Kia, an authorized Nissan service center. The manufacturer (Nissan Consumer Affairs) has been notified but has not yet provided a resolution or replacement part. There has been no involvement by police or insurance representatives. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes. and before thats what prompted me to bring the vehicle in to be serviced. Upon inspection at Northlake Kia on August 29, 2025, the dealership identified the driver airbag module defect. The airbag warning light was illuminated on the dashboard, indicating a malfunction in the airbag system.
Suddenly airbag light has steady on when start engine. Scanner shows has failed code L4 and failed to reset.
I purchased this vehicle last month from Anderson in cockeysville, Md. last week the airbag light came on. I was able to take it to them today 9-15-25 where they at first told me I was over the 1,000miles warranty so I’d have to deal with it on my own. After speaking with a manager, he agreed to take it to Nissan to get a determination.
The airbag light in the dashboard always stays lit. It has been worked on at the dealership multiple times and they get it to go out only for it to come back on. It’s concerning not knowing if there is a problem with the airbags itself. This has been on going for years. It started around when my car had 34000-35000 miles on it.
I’m getting an Air Bag warning light showing up on my dash. i took it to the Nissan dealer and its error code B0020-13 which comes up as a Left seat side air bag open error. Apparently the wiring going from the connector under the seat up to the side air bag is intermittently opening up depending what position the seat is in. Nissan said the entire top part of the seat needs to be replaced, very expensive, $2,500.00 to $3,000. This is a big safety problem since this is a common problem with this model from all the research I have done. This is obviously an engineering problem with how the cable is ran or quality of the cable and should be Nissans responsibility not the owner of the vehicle.
The airbag light appeared on my dashboard in late December. On 1/8/25, I took it to Auto Nation Nissan in Tempe to have it checked. They determined that the driver's side seat back needed to be replaced. That is where the airbag sensor is located. As of today, 3/14/25, they still do not have an ETA for the seat back. I have been driving for almost 3 months now without the airbags working. I also contacted Nissan corporate, and get the same response - they can't get an ETA for the seat back that is needed.
Questions about the 2018 Nissan Altima airbags
Does the 2018 Nissan Altima have airbags problems?
Owners have filed 36 complaints about the airbags of the 2018 Nissan Altima, 16% of all its complaints.
At what mileage do 2018 Nissan Altima airbags problems start?
The typical (median) mileage in owner complaints is 37,955 miles.
Was there a recall on the 2018 Nissan Altima airbags?
There is no recall for this problem on this model year.
What year does the Nissan Altima have bad airbags?
The Nissan Altima model years with the most airbags complaints are 2013 (514 complaints), 2014 (208 complaints) and 2015 (177 complaints).
Other 2018 Nissan Altima problems
Brakes 49Electrical 37Driver assistance 27Transmission 24Engine 14Lights 13Locks 12Steering 12Acceleration 11Suspension 4Body 3Seat belts 3Seats 3Visibility 3Fuel system 2Tires 1Wheels 1
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