2018 Chevrolet Sonic Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- The 2018 Sonic earns a top 5-star overall safety rating, providing peace of mind.
- Expect combined fuel economy around 28 MPG, contributing to reasonable running costs.
- The primary ownership concern is the electrical system, with frequent reports of infotainment and display issues.
- Engine problems, including rough idling and stalling, are also a significant concern for this model.
2018 Chevrolet Sonic
The 2018 Chevrolet Sonic presents a mixed bag for the used car shopper. It boasts excellent safety scores, achieving 5 stars overall, and offers respectable fuel economy with a combined 28 MPG. However, its reliability verdict is 'Below Average,' underscored by a significant number of Technical Service Bulletins (TSBs) and owner complaints. The most frequent issues reported involve the electrical system and engine, with specific concerns about infotainment failures and engine performance anomalies. Buyers should also be aware of a recall concerning the driver's seat-back frame.
Critical Failure Risk
Complaints frequently cite issues with the radio screen, Bluetooth connectivity, and instrument cluster brightness. These can range from minor annoyances to significant functional impairments.
Early detection can help you avoid a $300-$2,000 repair.
Safety & Bulletins
Owner Complaints
Performance & Efficiency
- Horsepower
- 138HP
- Torque
- 125–148 lb–ftLB-FT
Reliability
Practicality
Who This Car Is For
Best for
Budget-conscious buyers prioritizing safety ratings and fuel efficiency.
+2 more buyer-fit notes in the full report
Avoid if
Buyers seeking a trouble-free ownership experience.
+2 more buyer-fit warnings in the full report
2018 Chevrolet Sonic Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2018 Chevrolet Sonic.
Vehicle Specs
- Fuel Type
- Regular
- Seating Capacity
- 5
- Horsepower
- 138 hp
- Torque
- 125-148 lb-ft
- Transmission
- Automatic (S6)
- Drivetrain
- FWD/Front-Wheel Drive
- Body Style
- Hatchback
- MSRP Range
- $16,170 - $21,320
- EPA Combined MPG
- 28
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Most Common Issues
1. Electrical System
Most reportedUsage: 5 reports
2. ENGINE
Usage: 4 reports
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Check (Coolant, Brake, Power Steering)
Est. shop cost: $100 - $200
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FAQ
Is the 2018 Chevrolet Sonic reliable?
The CarFocal Reliability Score for the 2018 Chevrolet Sonic is 8.8/10. Reliability score is 8.8/10. NHTSA recalls: 1. Owner complaints: 23.
How practical is the 2018 Chevrolet Sonic for daily use?
Practicality score is 5.6/10. EPA combined economy is 28 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 422 litres.
What is the overall score for the 2018 Chevrolet Sonic?
The CarFocal Overall Score for the 2018 Chevrolet Sonic is 8.2/10. Overall score is 8.2/10 (Strong). Confidence 85%. Maintenance 8.6/10. Practicality 5.6/10.
What does it cost to own and maintain a 2018 Chevrolet Sonic?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake System Inspection - Fluid Level Check (Coolant, Brake, Power Steering) at 7,500 miles. Estimated first-year maintenance: $500 - $900. Repair prediction highlight: Electrical System (Infotainment/Cluster) (typical at 50,000 miles, estimated cost Min: $200 • Max: $1,500+).
What is the MSRP range for the 2018 Chevrolet Sonic?
MSRP range is $16,170 - $21,320.
What engine is in the 2018 Chevrolet Sonic?
Engine specs list Inline-4 • 4 • 1.8. Output is 138 hp • 125-148 lb-ft.
What transmission does the 2018 Chevrolet Sonic use?
According to CarFocal's specs for the 2018 Chevrolet Sonic, transmission is Automatic (S6). The paired drivetrain is FWD/Front-Wheel Drive.
What is the combined EPA MPG for the 2018 Chevrolet Sonic?
EPA combined estimate is 28 MPG.
What driver assistance and safety features are available on the 2018 Chevrolet Sonic?
8 standard and 2 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.
What is the fuel economy range for the 2018 Chevrolet Sonic?
According to CarFocal's specs for the 2018 Chevrolet Sonic, fuel economy range is 25-37 mpg combined.
How many people fit in a 2018 Chevrolet Sonic?
According to CarFocal's specs for the 2018 Chevrolet Sonic, seating capacity is 5.
What body style is the 2018 Chevrolet Sonic?
According to CarFocal's specs for the 2018 Chevrolet Sonic, body style is hatchback.
What drivetrain does the 2018 Chevrolet Sonic use?
According to CarFocal's specs for the 2018 Chevrolet Sonic, drivetrain is FWD/Front-Wheel Drive. Transmission is Automatic (S6).
What are the NHTSA safety ratings for the 2018 Chevrolet Sonic?
NHTSA ratings: Overall 5/5 • Frontal 5/5 • Side 5/5 • Rollover 4/5.
What are the most common electrical system problems on the 2018 Chevrolet Sonic?
Top complaint category: electrical system (5 reports, 21.7% of complaints).
Are there open safety recalls on the 2018 Chevrolet Sonic?
This model year has 1 official safety campaigns listed.
Should buyers consider alternatives to the 2018 Chevrolet Sonic?
Alternatives listed in this guide: 2018 Honda Civic and 2018 Toyota Corolla.