This bulletin is for information purposes only.The bulletin adresses design changes of the headlamps and rear combination lamps, where moisture and or condensation may develop on the inside of the lamp lenses.
full bulletin at NHTSA ↗2010 Subaru Legacy lighting problems
moderate 10 complaints filed with NHTSA · avg repair $250 · see lighting across all vehicles →
Complaints
10
Recalls
0
Avg fix
$250
What stands out
Among the 5 model years of Subaru Legacy in our records for lighting problems, this one ranks #2 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering lighting 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 bulletin provides a measurement and adjustment procedure for the stop lamp switch. An improperly adjusted (or faulty) stop lamp switch can cause any of the DTCs listed above to set and result in the related system?s (e. g. VDC and/or EyeSight) warning lamp to illuminate.
full bulletin at NHTSA ↗Subaru of America, Inc. (SOA) is extending the original warranty on the low-beam ONLY halogen headlamp bulbs to 10 years / unlimited miles from the vehicle?s original warranty start date. This warranty extension will cover low-beam halogen headlamp bulb replacement on 2010, 2011 and a very limited number of early-production 2012MY Legacy and Outback models. Covered vehicles will have a production date prior to those listed in the Production Change Information provided below and meet the guidelines outlined later in this bulletin.
full bulletin at NHTSA ↗As part of Subaru's dedication to customer satisfaction, SOA is announcing a Low-Beam Halogen Headlamp Bulb Warranty Enhancement program. This extends warranty coverage for 2010 - 2012 Legacy (for the 2012 model year, the affected models are vehicles that were manufactured through August 8, 2011) and 2010 - 2012 Outback (for the 2012 model year, the affected models are vehicles that were manufactured through August 22, 2011) vehicles sold or leased in the United States ("Affected Vehicles"). Please note that this is not a recall. If a vehicle is presented in which one or more low-beam halogen headlamp bulb(s) are not "burned out," no repair is necessary.
full bulletin at NHTSA ↗Subaru Service and Technical Support Line Newsletter
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners consistently report premature headlight bulb failure—some replacing bulbs 4 to 8 times over 3 to 9.5 years. One owner detailed replacing bulbs at least 16 times over nine years. Failures occur on either side or both simultaneously, often just weeks apart, and bulbs fail whether owners buy OEM parts or aftermarket, and whether they install them or the dealer does. Bulbs are not warranty-covered.
One owner at 30,000 miles found fractured mounting tabs in both headlight assemblies, allowing bulbs to shift during turns and lose contact. Replacing the assembly was the prescribed fix, but the owner didn't pursue it.
A major frustration: accessing low-beam bulbs requires removing the tire and wheel-well liner—at least an hour of work each time. Dealerships charge around $150 per replacement. This design makes frequent bulb swaps especially costly and inconvenient.
Some owners also report inadequate illumination—lights don't shine far or high enough. One owner noticed the beam has a distinctive horizontal cutoff line and suspects European ECE standard equipment rather than U.S. SAE standard. Dealership attempts to add high-intensity bulbs or fog lights didn't fix the issue.
Subaru has reportedly extended warranty to 10 years on this defect and acknowledges receiving other complaints, but no recall exists for this model.
Same Subaru Legacy lighting reports on nearby years: 2011
Failure modes owners describe
Premature Headlight Bulb Failure
Low-beam and/or high-beam headlight bulbs fail repeatedly, often multiple times within short intervals. Owners report replacing bulbs 4–8 times over 3–9.5 years of ownership, sometimes on both sides simultaneously or in quick succession.
When: Starts early in ownership; complaint #2 at 30,000 miles; #4 at under 54,000 miles; recurring across all ownership periods
Symptoms owners cite: Low-beam bulbs burn out prematurely; High-beam/driving bulbs fail repeatedly; Both sides go out in short timeframes (weeks to months apart); Bulbs fail regardless of brand used or dealership installation
Repairs/costs cited: Bulbs replaced by owners or dealers; dealer labor charged at ~$150 per replacement. Bulbs are not covered under warranty. No permanent fix identified despite dealership visits.
Recalls/TSBs owners mention: Complaint #7 states Subaru extended warranty to 10 years on this issue, indicating manufacturer awareness. Complaint #8 reports Subaru has had other complaints about headlamps. No recall issued for this model despite owner awareness of recalls on other Subaru models.
Fractured Headlight Assembly Tabs
Mounting tabs inside the headlight assembly crack or fracture, allowing bulbs to move and lose contact while driving, particularly during turns. This prevents proper illumination.
When: Reported at 30,000 miles in complaint #2
Symptoms owners cite: Headlights do not illuminate properly; Bulbs move when vehicle turns in either direction; Bulbs become unsecured in the assembly
Repairs/costs cited: Headlight assembly replacement required. Vehicle in complaint #2 was not repaired; owner did not pursue due to cost.
Recalls/TSBs owners mention: Manufacturer notified but no assistance offered per complaint #2.
Difficult Headlight Access and Removal
The headlight bulb replacement procedure requires removal of the tire and wheel-well liner or cowling, making the job cumbersome and time-consuming. This design flaw compounds the frustration of frequent bulb failures.
When: Ongoing issue affecting all owners attempting bulb replacement
Symptoms owners cite: Tire must be removed to access headlight bulbs; Wheel-well liner or cowling must be removed; Replacement takes at least one hour per incident; Front end must be partially disassembled
Repairs/costs cited: No parts replacement; issue is design-related. Owner labor or dealership labor at ~$150 per incident.
Inadequate Headlight Illumination Range
Headlights do not illuminate sufficiently far and high enough in front of the vehicle, creating a visibility hazard. Complaint #8 suggests the vehicle may be equipped with European ECE standard lights rather than U.S. SAE standard lights, featuring a distinctive horizontal cutoff line.
When: Complaint #9 did not specify timing; #8 ongoing throughout ownership
Symptoms owners cite: Running lights do not illuminate high enough; Lights do not illuminate far enough ahead; Horizontal cutoff line visible across horizon (characteristic of ECE standard); Limited vertical and horizontal beam adjustment
Repairs/costs cited: Dealership attempted to install high-intensity bulbs but was overruled; fog lights were installed as workaround without improvement.
Recalls/TSBs owners mention: Complaint #8 notes Subaru acknowledged other complaints about their headlamps.
Synthesized from 10 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Notice significant rust or corrosion on my 2010 Subaru Legacy, especially on the subframe. Had it professional inspected and confirmed on December 6, 2025 because it was making a squeaky noise when I applied the brakes. I purchased this vehicle 02/15/20 used, was not told about corrosion. Bought vehicle at Maxon Buick GMC in Union, New Jersey. Also,my headlight bulbs keeps going out every year…
Had lighting trouble with your 2010 Subaru Legacy?
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 lighting problem on the 2010 Subaru Legacy?
It's a documented issue but not catastrophic. 10 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Based on the 10 complaints filed, lighting issues most often appear around 46,553 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 $250 for lighting 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 lighting?
No active recalls currently cover lighting 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/2010/Subaru/Legacy.
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.