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Executive Vehicle Verdict

The 2018 Chevrolet Sonic is associated with 14 official NHTSA owner defect complaints and 1 safety recall campaign in the federal safety database.

The most frequently reported component area is Electrical System, accounting for 2 reports (14% of total complaints). EPA testing covers 8 certified vehicle configurations spanning 1.4l 4-cyl and 1.8l 4-cyl configurations. Gasoline and hybrid variants deliver 28 to 32 MPG combined.

Official Federal Record Profile
  • • NHTSA Owner Complaints: 14 consumer reports filed
  • • Safety Recall Campaigns: 1 official campaign
  • • Primary Defect Domain: Electrical System (2 / 14%)
  • • NCAP Crash Safety: 5 / 5 Stars Overall Laboratory Score
  • • EPA Certified Range: 28–32 MPG across 8 powertrain trims
Directly compiled from official NHTSA Office of Defects Investigation (ODI), NHTSA NCAP, and EPA FuelEconomy.gov databases.

What is the fuel economy and range of the 2018 Chevrolet Sonic?

Official EPA laboratory test ratings, electric driving range, and annual energy cost estimates by certified vehicle variant

Variant Engine Drivetrain Transmission City Highway Combined EV Range Est. Annual Fuel Cost
Sonic 1.4L 4-Cyl Front-Wheel Drive Manual 6-spd 28 MPG 37 MPG 32 MPG — $1,900 / yr
Sonic 5 1.4L 4-Cyl Front-Wheel Drive Manual 6-spd 28 MPG 37 MPG 32 MPG — $1,900 / yr
Sonic 1.4L 4-Cyl Front-Wheel Drive Automatic (S6) 27 MPG 35 MPG 30 MPG — $2,050 / yr
Sonic 5 1.4L 4-Cyl Front-Wheel Drive Automatic (S6) 27 MPG 35 MPG 30 MPG — $2,050 / yr
Sonic 1.8L 4-Cyl Front-Wheel Drive Manual 5-spd 26 MPG 35 MPG 29 MPG — $2,100 / yr
Sonic 5 1.8L 4-Cyl Front-Wheel Drive Manual 5-spd 26 MPG 35 MPG 29 MPG — $2,100 / yr
Sonic 1.8L 4-Cyl Front-Wheel Drive Automatic (S6) 25 MPG 34 MPG 28 MPG — $2,200 / yr
Sonic 5 1.8L 4-Cyl Front-Wheel Drive Automatic (S6) 25 MPG 34 MPG 28 MPG — $2,200 / yr
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.

What are the crash test safety ratings for the 2018 Chevrolet Sonic?

Official 5-Star Safety Ratings evaluated by the National Highway Traffic Safety Administration

Tested Drivetrain / Cab Variant Overall Rating Frontal Crash Side Crash Rollover Rating Rollover Risk
4 DR FWD 12.6%
5 DR FWD 12.6%
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Optional and Lane Departure Warning (LDW) is documented as Optional in official NHTSA records for tested 2018 Chevrolet Sonic models.
View complete 2018 Chevrolet Sonic crash test & safety breakdown →

What defect complaints are reported for the 2018 Chevrolet Sonic?

Summary of 14 verified consumer defect submissions filed with the NHTSA Office of Defects Investigation (ODI)

Total Complaints
14
Crash Reports
0
Fire Reports
0
Complaints w/ Injury
0
Total Injuries
0

Top Reported Problem Categories

Ranked by total consumer complaint submissions recorded by NHTSA

Electrical System 2 complaints
Air Bags 1 complaint
ELECTRICAL SYSTEM,ENGINE,VISIBILITY/WIPER 1 complaint
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 1 complaint
ELECTRICAL SYSTEM,WHEELS 1 complaint

Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.

View all 2018 Chevrolet Sonic problems & component breakdown (13 categories) →

Are there open safety recalls on the 2018 Chevrolet Sonic?

Manufacturer safety recall campaigns monitored and recorded by NHTSA

NHTSA Campaign #18V342000 Active Recall
Affected Component: SEATS

Defect Summary: General Motors LLC (GM) is recalling certain 2018 Chevrolet Sonic vehicles. A joint in the driver's seat-back frame may not be properly welded, reducing the strength of the seat-back frame.

Free Manufacturer Remedy: GM will notify owners, and dealers will replace the driver's seat-back, free of charge. The recall began June 28, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18178.
View all 2018 Chevrolet Sonic recalls & campaign history (1 campaigns) →
Search Intelligence

Quick Answers: Key Questions Drivers Ask About the 2018 Chevrolet Sonic

Direct, deterministic answers synthesized from verified United States government databases for the 2018 Chevrolet Sonic

How many safety recalls does the 2018 Chevrolet Sonic have?

The 2018 Chevrolet Sonic is associated with 1 official NHTSA safety recall campaign in AutoUtility's current federal records.

If your individual vehicle is affected by an open safety recall, NHTSA advises owners to contact an authorized franchised dealership for the recall remedy at no charge. Because recall campaigns apply to specific production runs and equipment batches, vehicle owners should verify their 17-digit VIN at NHTSA.gov.

View all 1 recall campaigns & remedy details →
Source: NHTSA Safety Recalls Database (49 U.S.C. 30118)

What are the most common problems reported for the 2018 Chevrolet Sonic?

NHTSA records list 14 consumer defect complaints for the 2018 Chevrolet Sonic. The most frequently referenced vehicle system is Electrical System, appearing in 2 filings (14% of submissions).

Consumer complaints represent unverified owner submissions filed under federal reporting guidelines and describe reported component behavior rather than audited failure rates.

Explore full 2018 Chevrolet Sonic defect complaint breakdown →
Source: NHTSA Office of Defects Investigation (ODI)

What is the NHTSA safety rating for the 2018 Chevrolet Sonic?

Under the NHTSA New Car Assessment Program (NCAP), the 2018 Chevrolet Sonic earned an Overall Safety Rating of 5 out of 5 stars across 2 tested configuration(s).

Laboratory evaluations include a 35 mph frontal barrier crash, side barrier and pole impact tests, and static rollover resistance assessments.

View detailed crash test laboratory breakdown →
Source: NHTSA New Car Assessment Program (NCAP)

What fuel economy (MPG) does the 2018 Chevrolet Sonic get?

Official EPA laboratory estimates for the 2018 Chevrolet Sonic range from 28 to 32 MPG combined (55% city / 45% highway weighted) depending on engine, transmission, and drivetrain configuration.

Using AutoUtility's standardized operating cost model (15,000 miles/year, $3.50/gal gas, $0.16/kWh electricity), annual energy expenditures range across certified configurations based on official EPA laboratory test baselines.

Compare MPG ratings across all certified trims →
Source: EPA FuelEconomy.gov Certified Database
Official US Government Data Provenance

The specifications, safety ratings, defect reports, and recall campaigns published on this page are retrieved directly from official United States Government agency databases:

  • NHTSA Office of Defects Investigation (ODI): Consumer complaints and defect reports.
  • NHTSA New Car Assessment Program (NCAP): Frontal, side, and rollover 5-Star crash safety test ratings.
  • U.S. EPA / FuelEconomy.gov: Standardized multi-cycle dynamometer fuel economy, MPGe, and electric driving range ratings.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.