SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire âFuel Level Sensor Unit, Fuel Filter and Fuel Pump Assemblyâ (fuel pump assembly). The fuel level sensor can be replaced separately. ï· P0460 (FUEL LEV SEN SLOSH) ï· P0461 (FUEL LEVEL SENSOR) ï· P0462 (FUEL LEVL SEN/CIRC) ï· P0463 (FUEL LEVL SEN/CIRC) NOTE: Warranty claims referring to fuel level issues that result in the replacement of the entire fuel pump assembly will be charged back.
full bulletin at NHTSA ↗2018 Nissan Armada fuel system problems
moderate Owners of the 2018 Nissan Armada have filed 3 NHTSA complaints about the fuel system at roughly $1,200 to repair (U.S. federal records, as of October 2026). Source: NHTSA Office of Defects Investigation. See fuel system across all vehicles →
Complaints
3
Recalls
0
Avg fix
$1,200
When does it fail?
Of the 3 fuel system complaints filed for the 2018 Nissan Armada, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners are still filing on this — the most recent NHTSA fuel system complaint for this vehicle was logged 5 days ago.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗2017-2019 ARMADA; MIL ON WITH DTC P0174 IF YOU CONFIRM The MIL is ON and only DTC P0174 (FUEL SYS LEAN B2) is stored in the ECM. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
full bulletin at NHTSA ↗NISSAN; P0171 AND P0174 SERVICE INFORMATION SERVICE INFORMATION Diagnosis for DTCs P0171 (FUEL SYS LEAN B1) and P0174 (FUEL SYS LEAN B2) have been revised for the APPLIED VEHICLES listed above. When performing diagnosis for either of these DTCs, start by using the SERVICE PROCEDURE section of this bulletin. NOTE: The related Electronic Service Manuals (ESM) will be revised in the future to include these diagnostic steps.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
The contact owns a 2018 Nissan Armada. The contact stated that while the vehicle was parked, there was a strong fuel odor near the rear of the vehicle. The vehicle was taken to the dealer, and it was determined that the fuel pump was fractured. The failure mileage was approximately 93,000.
The contact owns a 2018 Nissan Armada. The contact stated that while operating the vehicle, the check engine warning light remained illuminated. The contact stated that the vehicle stalled several times after refueling. The vehicle was taken to the local dealer, who diagnosed that the fuel pump was faulty and needed to be replaced. The fuel pump was replaced. The manufacturer was not yet…
Had fuel system trouble with your 2018 Nissan Armada?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the fuel system problem on the 2018 Nissan Armada?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Based on the 3 complaints filed, fuel system issues most often appear around 121,333 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Nissan/Armada.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.