2017 Chevrolet Sonic: engine and transmission complaints
VERY HIGH COMPLAINT SIGNAL
66%
21 of 32 relevant owner complaints are about the engine, transmission or fuel system
66% of relevant owner complaints filed with NHTSA on the 2017 Chevrolet Sonic are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.
Worse than 87% of the 1,230 model years we track (2010–2023).
Excludes 5 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 57%).
The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.
What owners reported
STRUCTURE,ENGINE04/21/2026
Oil cooling system has been replaced. Major leak in AC line needs replacement. Purge solenoid stop functioning and was replaced, now there is an additional major coolant leak
ENGINE AND ENGINE COOLING,POWER TRAIN,ENGINE02/06/2026
The contact owns a 2017 Chevrolet Sonic. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The check engine warning light was illuminated. The contact stated that the engine made an abnormally rough sound, the transmission failed to shift as intended, and the vehicle failed t…
ELECTRICAL SYSTEM,ENGINE08/17/2025
Multiple attempts to fix camshaft/ camshaft position sensor. Causes car to decelerate at high speeds. Shaking while at high speeds
Three of 21 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.
Before you buy a 2017 Chevrolet Sonic
Ask the seller whether the engine has ever been repaired or replaced, and whether the car has shown stalling, loss of power, rough idle, oil consumption or a check-engine light.
Drive it from a cold start and long enough to warm up. Many engine faults hide once the car is warm.
Get an independent pre-purchase inspection from a mechanic you choose, and tell them to focus on the engine.
Ask for service records. A engine already replaced under warranty is a different car from one that was not.
Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.
Experimental model-level information. This is not a vehicle inspection, vehicle-history
report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition
of any individual vehicle.