2018 Chevrolet SONIC problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
14 owner complaints analyzed
1 distinct recall campaigns
27,475 mi median reported failure mileage
Scope: 2018 model year. Data snapshot: . 8 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 5 of 14 complaints (35.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 2 | 14.3% |
| Engine operation | 1 | 7.1% |
| Braking behavior | 1 | 7.1% |
| Electrical and battery issues | 1 | 7.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 5 |
| Engine | 4 |
| Seats | 2 |
| Unknown Or Other | 2 |
| Wheels | 2 |
| Air Bags:Sensor:Occupant Classification:Front Passenger | 1 |
| Exterior Lighting | 1 |
| Fuel System, Gasoline | 1 |
Electrical System: 5; Engine: 4; Seats: 2; Unknown Or Other: 2; Wheels: 2; Air Bags:Sensor:Occupant Classification:Front Passenger: 1; Exterior Lighting: 1; Fuel System, Gasoline: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 3 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 2 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 3; 25,000 to 49,999: 3; 50,000 to 74,999: 0; 75,000 to 99,999: 2; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (3). 6 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2025 | 2 |
2018: 2; 2019: 3; 2020: 2; 2021: 2; 2022: 3; 2025: 2
Pattern summary
Electrical System leads the component reports. Steering behavior appears in 2 complaint narratives. Engine operation appears in 1 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11152052 · 2018-11-16 (November 16, 2018)
DURING NIGHT OPERATION, THE BACKLIGHT OF THE CENTER SCREEN IS SO BRIGHT IT CAUSES DIFFICULTY SEEING THE ROAD. THE INSTRUMENT CLUSTER IS AT AN ACCEPTABLE LEVEL (AS ADJUSTED BY THE SWITCH TO THE LEFT OF THE STEERING WHEEL), BUT THE CENTER SCREEN IS STILL TOO BRIGHT. A SIMPLE FLOATING SOFTWARE BUTTON ALLOWING A DISPLAY OFF FUNCTION WOULD ADDRESS ISSUE. AS IT IS, THE DISPLAY OFF FUNCTION IS HIDDEN IN A SUBMENU REQUIRING INATTENTION TO THE ROAD TO ACTIVATE. *TR
Owner-reported narrative. Look up ODI 11152052 at NHTSA ↗
Owner report 11181140 · 2019-02-19 (February 19, 2019)
THE 2018 SONIC IS NOT SAFE TO DRIVE IN THE SNOW. IT HAS NO TRACTION TO START FROM A STOPPED POSITION, NO TRACTION TO STOP AND NO ABILITY TO CONTROL STEERING OR TURNING.
Owner-reported narrative. Look up ODI 11181140 at NHTSA ↗
Owner report 11436408 · 2021-10-12 (October 12, 2021)
The contact owns a 2018 Chevrolet Sonic. The contact stated that operating the vehicle, the front driver side seat would erroneously slide forward causing the driver's knees to make contact with the dash panel. In addition, while driving at various speeds the vehicle had suddenly stalled. The vehicle was taken to the local dealer who diagnosed that the electronic control unit hardware was faulty. Also, the emergency brake cable was hanging low to the ground under the vehicle. The vehicle was not repaired. The local dealer was notified of the fa…
Owner-reported narrative. 28,000 miles reported. Look up ODI 11436408 at NHTSA ↗
Owner report 11316425 · 2020-03-05 (March 5, 2020)
TODAY I'M WRITING IN BEHALF OF CARITE OF OAKLAND PARK I HAD A EMAIL CHAT WITH BRIAN MCCOY THE BRANCH OWNER OF THE COMPANY, I WAS TOLD BY HIM THAT THE CAR WAS PUT IN AS REPO STATUS, DUE TO ME GIVING THE CAR BACK. I FEEL MY LIFE WAS PUT IN DANGER NUMEROUS OF TIMES AND DUE TO THE NEGLIGENCE OF THE COMPANY I WAS NOT GIVEN A RELIABLE VEHICLE NOR WAS I TREATED AS A VALUED CUSTOMER... GOOD DAY, I'VE MADE ALL ATTEMPTS REGARDING THIS SITUATION WITH CARITE I'M THE TIME ALLOWED.. I'M REQUESTING A FULL REFUND OF MY MONEY I'VE MADE IT CLEAR AND I DON'T WA…
Owner-reported narrative. Look up ODI 11316425 at NHTSA ↗