This is a Technical Service Bulletin sent to dealers. This bulletin updates the Supplemental Restraint System (SRS) section of the affected Service Manuals, to correct minor errors in the diagnosis for DTC B1631.
full bulletin at NHTSA ↗2018 Mitsubishi Outlander Sport airbags problems
severe 5 complaints filed with NHTSA · avg repair $1,100 · see airbags across all vehicles →
Complaints
5
Recalls
0
Avg fix
$1,100
3crashes
2injuries
When does it fail?
Of the 5 airbags complaints filed for the 2018 Mitsubishi Outlander Sport, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 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
Of the 4 model years of Mitsubishi Outlander Sport we track for airbags problems, this one carries the most owner complaints on file — 5.
Airbags accounts for 24% of all owner complaints filed against this vehicle, across 3 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering airbags 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.
This is a service newsletter (Tech Talk) that was sent out to dealers.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 5 most recent
The vehicle was traveling at approximately 63 MPH on a rural blacktop, when a white tail deer ran into the side of the vehicle where the drivers side front and rear door meet. The collision caused both door windows to shatter, and the doors are dented so bad they cannot be opened. The side airbags on the vehicle did not deploy even after taking a direct hit from the deer.
On 05AUG25, my wife was involved in a frontal collision while driving our 2018 Mitsubishi Outlander Sport. The vehicle struck another vehicle at an estimated speed of over 30 mph, resulting in significant damage to the front passenger side, including deformation of the hood and front quarter panel. Despite the severity of the impact, no airbags deployed. My wife was properly restrained and…
This is a follow-up and correction to a complaint previously submitted for VIN [XXX] regarding airbag non-deployment during a passenger-side T-bone collision on [XXX]. A [XXX] child was properly restrained in a rear-facing car seat in the rear passenger-side seat. The vehicle was struck directly on the passenger side at an estimated 30 mph. The front passenger door was deformed to the point it…
Air bag symbol is lit on dash. Technicians unable to find issue, nor were they able to reset light. I feel the importance of said system functioning properly needs addressed. Not just we e can't find what is wrong.Nothing else we can do. No, that's b s
The contact owns a 2018 Mitsubishi Outlander Sport. The contact stated that upon starting the vehicle, the air bag light warning light was illuminated. The contact stated that the vehicle was taken to a local dealer to be diagnosed. The contact was informed that the air bag sensor was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The…
Had airbags trouble with your 2018 Mitsubishi Outlander Sport?
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 airbags problem on the 2018 Mitsubishi Outlander Sport?
It's a meaningful issue. 5 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,100.
At what mileage does the airbags typically fail?
Based on the 5 complaints filed, airbags issues most often appear around 70,347 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 $1,100 for airbags 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 airbags?
No active recalls currently cover airbags 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/Mitsubishi/Outlander Sport.
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.