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Fuel systemPart report

2018 Chevrolet Sonic Fuel system Problems

Complaints
2about this part
Share
13%of 15 total for the year
Median mileage
85,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 2018 Chevrolet Sonic, 13% of the 15 complaints for this model year. Where a mileage was given, the median is 85,000 miles.

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.

“The contact owns a 2018 Chevrolet Sonic. The contact stated that while driving at an undisclosed speed, the engine was idling roughly. The contact stated that the check engine warning light was illuminated. Additionally, the contact stated that the vehicle was consuming an excessive amount of fuel. The contact stated that the canister purge valve had previously been replaced, but the failure persisted. The vehicle was taken to an independent mechanic, who determined that the canister purge valve needed to be replaced a second time. The vehicle was not repaired. …”

NHTSA complaint #11661264, filed 2025-05, 85,000 miles

“The has as well as mileage is not accurate and it constantly changes even while not driving which is adding more miles to car than actually is and you will never know how much gas you have in car truly which is safety concern especially if you are driving on interstate and can’t tell how much gas you have in car and suddenly run out of gas while other are behind you going 70 mph which can cause a wreck”

NHTSA complaint #11462831, filed 2022-04

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2020110%
2019225%
2018213%
2017411%
2016510%
20151211%
20141611%
2013146%
2012185%

Other parts of the 2018 Chevrolet Sonic

Electrical system
6 complaints
Engine
4 complaints
Other or unknown
2 complaints
Seats
2 complaints
Wheels
2 complaints
Air bags
1 complaints
Brakes
1 complaints
Exterior lighting
1 complaints
Seat belts
1 complaints
Steering
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2018 Chevrolet Sonic

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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