CHECKED CAR WHILE STATIONED, WHEN RUNNING ALWAYS NEEDS MORE COOLING MAYBE ELECTRICAL BURNOUT OF A PART THAT CONNECTS TO THE RADIATOR FAN. WHEN PUT THE DIAGNOSE CODE, NONE IS GIVEN, AND TEMPERATURE GOES UP TO 225, ITS A HAZARD IF A PERSON DOES NOT KNOW THAT FAN IS NOT WORKING, PUTTING REFRIGERANT ALL THE TIME. READ THAT THERE IS A NEW RE-DESIGN COOLING FAN ASSEMBLY.
2012 Chevrolet Sonic electrical problems
severe 45 complaints filed with NHTSA · avg repair $850
Complaints
45
Recalls
0
Crashes
2
Avg fix
$850
What owners are reporting 6 most recent
IDLES ROUGHLY, IDLE INCREASES DRAMATICALLY WHILE THE CAR IS AT A STOP, AND THE ENGINE STALLS VERY FREQUENTLY, REGARDLESS OF TEMPERATURE OR WEATHER CONDITIONS. ON START-UP, OR WHILE STOPPED WITH THE ENGINE RUNNING, THE IDLE WILL BECOME ROUGH AND VARY BETWEEN 200-3,000 RPM, BUT NOT STALL. ALSO AT TIMES, WHILE STOPPED, THE IDLE WILL INCREASE FROM NORMAL, SMOOTH IDLE UP TO ABOUT 3,000 RPM FOR APPROX…
RADIO RANDOMLY TURNS ON WHEN CAR IS SHUT OFF. LAST NIGHT IT TURNED ON 13 TIMES. IT ACTIVATES THE FULL ELECTRICAL SYSTEM IN THE CAR. WON'T SHUT OFF UNLESS CAR IS STARTED AND XM RADIO IS TUNED TO FM AND SHUT OFF. THEN IF YOUR LUCKY IT MAY STAY OFF. I HAVE BEEN REPORTING THIS TO THE DEALERSHIP IN VERMONT AND CHEVROLET FOR 8 MONTHS. THEY TELL ME IT IS NOT AN ISSUE. THEY TESTED RADIO SAID IT WORKS FINE…
THERE IS NO HEAT IN MY 2012 SONIC, THE HEAT IS TURN TO THE HIGHEST POSITION BUT ONLY BLOWS COLD AIR. OCCATIONALLY THE HEAT WILL START BUT WHEN THE CAR IS NOT IN MOTION THERE IS NO HEAT AND ONLY COLD AIR.
FIRST OF ALL THE WINDSHIELD WIPER LINE KEEPS POPPING OF MY CAR NOT ALLOWING ME TO USE MY WINDSHIELD WIPER FLUID SO THE TANK IS ALWAYS EMPTY. SECOND WHILE DRIVING MY CAR RADIO FLICKERS ON AND OFF AND SOMETIMES COMPLETELY GOES BLACK NOT ONLY THAT MY CAR SPEEDOMETER IS ELECTRICAL AND AFTER 30 MIN OF DRIVING SAYS IM GOING 20/34/WHATEVER MPH IT WANTS TO READ WHEN IM REALLY GOING THE HWY SPEED LIMIT AN…
CAR WILL START BY ITSELF AFTER KEY IS PARTIALLY INSERTED INTO IGNITION AND CAR WILL TRY TO START OVER AND OVER IF LEFT IN IGNITION WHEN TURNING OFF. TOOK TO DEALER THEY BLAMED ON AFTERMARKET RADIO. HOWEVER, I AM PRETTY SURE HAS DONE ALMOST FROM THE POINT PURCHASE. DISCONNECTED RADIO STUFF AND STILL DOES SAME THING. CAR IS STATIONARY IN PARK. NO SAFETY ISSUE OTHER THAN WHAT IS STATED.
Common questions
How serious is the electrical problem on the 2012 Chevrolet Sonic?
It's a meaningful issue. 45 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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