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Fuel systemPart report

2018 Subaru Legacy Fuel system Problems

Complaints
8about this part
Share
7%of 117 total for the year
Median mileage
10,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the fuel system of the 2018 Subaru Legacy, 7% of the 117 complaints for this model year. Where a mileage was given, the median is 10,000 miles. 2 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“On the dashboard showed that the remain mileage was 70, but it stopped all the sudden due to no gas. I almost caused an accident because the car stopped on a public street with heavy traffic. After many times trying to start the car, it did not work; it was completely dead. I had to leave the car stranded to go and get gas to the nearest gas station.”

NHTSA complaint #11170153, filed 2019-01, 15,365 miles

“After filing tank I took a drive...drove abt 30 miles to do some shopping then abt 2 hours later I drove the 30 miles back home with the fuel guage not moving....after several hours at home getting ready to go out for the evening I got into car..pressed the button and started car...notice that the fuel guage was at 3/4....when I parked it was above full...this happened several times during the month of june 2018 (purchased car new on may 26 2018) contacted dealership on july 3, 2018...they received it on july 7, 2018....after being at the dealer for 11 weeks the car was returned to me with a…”

NHTSA complaint #11193747, filed 2019-04, 1,900 miles

“Acceleration hesitates or stutters when slowly accelerating, like from a stop in a neighborhood. 2018 Legacy 3.6r has done this since purchased in april 2019.”

NHTSA complaint #11360390, filed 2020-09, 15,000 miles

“On june 6, 2019, we took our car in for regular maintenance and to perform two outstanding recalls that involved software reprogramming -- one for the fuel gauge (which apparently may not properly reflect low gas levels) and one for the head unit (which may fail to initialize and activate the backup camera). We had _zero_ problems with the head unit (or fuel gauge to our knowledge) prior to the recall work. Now the head unit fails to initialize for several minutes every few times we start our car -- the _exact_ issue that the recall was initiated to address. …”

NHTSA complaint #11220650, filed 2019-06

“I have a 2018 Subaru Legacy 2.5. The front catalytic converter failed April 2022 with 130k miles. the part was replace by Subaru and the part has failed again. Oct 2023 with 180k miles. Exhaust fumes enter the passenger compartment (which are Carbon Monoxide). The same part has failed two times in a short period of time. Subaru states this is not a warranty issue .This must become a recall.”

NHTSA complaint #11553381, filed 2023-11

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2025117%
202011%
201954%
201887%
201743%
201632%
2015159%
201412%
201312%
201222%
201174%
201053%
200912%
200835%
20061618%
20052715%
2004510%
2003915%
20021528%
20011925%
200055%
199977%
199887%
199796%
199687%
19951810%
199447%
199323%
199224%
199111%
199045%

Other parts of the 2018 Subaru Legacy

Electrical system
40 complaints
Visibility (wipers, defrost, mirrors)
32 complaints
Other or unknown
29 complaints
Engine
10 complaints
Brakes
6 complaints
Lane departure
4 complaints
Steering
4 complaints
Body and structure
4 complaints
Air bags
3 complaints
Back-over prevention (rear camera)
3 complaints
Suspension
3 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2018 Subaru Legacy

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology