Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.
Fuel economy
23–29 mpgcombined; city 20–25, highway 28–34; every version of this model year
Five years of fuel
$11,200–$14,120U.S. average; Ohio $10,010–$12,620 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA's VIN data lists these trims for the 2018 Legacy. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.
Owners have filed 117 complaints with NHTSA about the 2018 Legacy. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.
Complaints by part of the car
Part
Complaints
Crashes
Fires
Injuries
Electrical system
40
0
1
0
Unknown or other
29
1
1
1
Visibility/wiper
25
0
0
0
Engine
10
3
0
0
Fuel/propulsion system
8
2
0
0
Visibility
8
0
0
0
Service brakes
5
3
0
0
Lane departure
4
0
0
0
Steering
4
0
0
0
Structure
4
0
0
0
Air bags
3
1
0
0
Back over prevention
3
0
0
0
11 more parts
Suspension
3
1
0
0
Vehicle speed control
3
2
0
0
Equipment
2
0
0
0
Exterior lighting
2
0
1
0
Forward collision avoidance
2
0
0
0
Power train
2
0
0
0
Tires
2
0
0
0
Electronic stability control (ESC)
1
1
0
0
Parking brake
1
0
0
0
Seat belts
1
0
0
0
Wheels
1
0
0
0
Complaints by model year
Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.
NHTSA lists 3 recall campaigns for the 2018 Legacy over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021. Subaru and Toyota owners may call customer service at 1-844-373-6614. Subaru's number for this recall is WRG-21.
Subaru of America, Inc. (Subaru) is recalling certain 2018 Legacy, Outback, and BRZ vehicles. In the affected vehicles, a software issue may cause the audio display system to not initialize, resulting in the camera display remaining blank. If this occurs, the rearview image will not display while backing up the vehicle. As a result, the vehicles fail to comply with requirements of Federal Motor Vehicle Safety (FMVSS) number 111, "Rearview Mirrors."
Risk: Failure to display the rearview image while backing up increases the risk of crash.
Remedy: Subaru has notified owners, and dealers will reprogram the audio system display software, free of charge. The recall began on February 5, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WTZ-85.
Subaru of America, Inc. (Subaru) is recalling certain 2018 Subaru Legacy and Outback vehicles. Due to a software error, the low fuel warning light may not illuminate at the intended remaining fuel level and the miles-to-empty display may incorrectly indicate a positive number despite the tank being empty.
Risk: The inaccurate fuel display may cause a driver to unexpectedly run out of fuel and the vehicle to stall, increasing the risk of a crash.
Remedy: Subaru will notify owners, and dealers will reprogram the combination meter software, free of charge. The recall began February 20, 2019. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WTW-82.
Carmakers sent NHTSA 445 service bulletins and notices that cover the 2018 Legacy, the latest on Oct 5, 2026. They tell dealers how to fix known issues.
The parts they mention most: electrical system (255), equipment (190), power train (51), equipment adaptive/mobility (27), unknown or other (27).
NHTSA hasn't opened a defect investigation that covers this model year.
Maintenance
Oil
The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2018 Legacy.
EPA class: midsize cars. EPA greenhouse gas score: 5–6 out of 10. Each version EPA tested:
Swipe the table sideways for more columns.
Version
Engine
Transmission
Fuel
City / hwy / comb
Legacy All-Wheel Drive
2.5 L, 4 cyl
Automatic (AV-S7)
Regular Gasoline
25 / 34 / 29
Legacy All-Wheel Drive
3.6 L, 6 cyl
Automatic (AV-S6)
Regular Gasoline
20 / 28 / 23
Sources and dates
U.S. EPA fuel economy data, file of Sep 29, 2026
NHTSA owner complaints, file of Oct 17, 2026
NHTSA recalls, file of Oct 17, 2026
NHTSA manufacturer communications, file of Oct 17, 2026
NHTSA defect investigations, file of Oct 17, 2026
NHTSA 5-Star Safety Ratings, file of Aug 7, 2026
U.S. Energy Information Administration, file of Oct 12, 2026
Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data