RoadVitals

2015 Chevrolet Sonic Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
26
Latest Feb 3, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
23%
of 114 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2015 Chevrolet Sonic submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 26 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming engine

The 25 most recent of 26, in the owner's own words

Engine
Filed Feb 3, 2025

The contact owns a 2015 Chevrolet Sonic. The contact stated that while operating the vehicle, the check engine light remained illuminated. The vehicle was taken to the local mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The failure mileage was 115,000.

NHTSA ID
11640293
Incident
Mar 3, 2024
Mileage
115,000 mi
EngineFuel system
Filed Aug 21, 2024

Stalls when reduced speed. CEL constant. Codes indicate Emission promlem. Cleared by replacing intake valve. CEL came back on.

NHTSA ID
11609919
Incident
Apr 4, 2024
Engine
Filed Mar 19, 2024

The contact owns a 2015 Chevrolet Sonic. The contact stated while driving at an undisclosed speed, upon coming to a complete stop, the vehicle inadvertently lost motive power. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular occurrence. The traction control and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 117,000.

NHTSA ID
11578281
Incident
Dec 10, 2023
Mileage
117,000 mi
EngineFuel system
Filed Jun 5, 2023

My cars coolant is leaking and the source is unknown. My car has overheated twice and my mechanic has been unable to find what needs to be repaired. The coolant has need to to be filled twice within a 6 month period. Now my car is having other issues with the catalyst system that lead me to believe the coolant leak might be affecting these other parts. My catalytic converter was already replaced and the same code has popped up 4 months later.

NHTSA ID
11525327
Incident
Apr 11, 2023
Engine
Filed Oct 19, 2022

The contact owns a 2015 Chevrolet Sonic. The contact stated that while operating the vehicle, the odor of exhaust fumes was present inside the cabin of the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. The vehicle was not yet repaired. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet notified of the failure. The VIN was not available. The failure mileage 86,000.

NHTSA ID
11490021
Incident
Oct 1, 2022
Mileage
86,000 mi
ElectricalEngine
Filed Sep 9, 2022

Once again, my doors unlocked then relocked, my dashboard lights went out and the engine stalled. I was on the KU campus when this happened 3 times within 6 blocks. This is getting very scary, especially when i am in a busy area of town. No codes have ever popped up. This has been happening since May 2022. I will keep reporting, hopefully there will be a recall soon. Very frustrated with this situation!

NHTSA ID
11483637
Incident
Sep 8, 2022
ElectricalEngineFuel system
Filed Sep 2, 2022

3 times yesterday - September 1, 2022, my car locks unlocked then locked again and the engine stalled. Dash lights did not go off, but the car died 3 times in a matter of 10 minutes.

NHTSA ID
11482611
Incident
Sep 1, 2022
Engine
Filed May 16, 2022

The car keep getting hot due to liquid missing but I always fill the car up to 2014 it was a recall to all the chef sonics but not the 2015 but is still the same issue

NHTSA ID
11464906
Incident
May 16, 2022
EngineSuspension
Filed May 5, 2022

Vehicle shakes and vibrates when first turned on, and driving. Has alot of vibration.

NHTSA ID
11463451
Incident
Feb 10, 2020
Engine
Filed Dec 3, 2021

The contact owns a 2015 Chevrolet sonic. The contact stated that while driving at approximately 25 MPH, there was white smoke coming from under the hood of the vehicle. The contact mentioned that once the vehicle was to the side of the road, the contact noticed that there was antifreeze all over the engine. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the rear water outlet needed to be replaced. The vehicle was repaired however, the failure recurred twice. The manufacturer was not notified of the failure. The approximate failure mileage was 75,000. The VIN was invalid.

NHTSA ID
11442568
Incident
Nov 15, 2019
Mileage
75,000 mi
AirbagsEngine
Filed Jul 16, 2021

My airbag on the passenger side goes on and off all the time, dealership wouldnt fix it couldnt find why it was doing that. Now while driving it just shuts off with out a warning ,scard to take it to dealership cant afford to keep putting money into it. I have had problems since the car was bought from the dealership. Now do not know how to be able to sell if it is doing this.

NHTSA ID
11425191
Incident
Jun 18, 2021
ElectricalEngineSteering
Filed Apr 14, 2021

TL* THE CONTACT OWNS A 2015 CHEVROLET SONIC. THE CONTACT STATED THAT THE AIR CONDITIONER WAS INOPERABLE. THE CONTACT STATED SHE NOTICED THAT THERE WAS A CONSISTENCE OF WHITE SNOW UNDERNEATH THE HOOD OF THE VEHICLE. THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. ADDITIONALLY, WHILE DRIVING, THE STEERING WHEEL WAS DIFFICULT TO TURN. THE VEHICLE WAS TAKEN TO DYER CHEVROLET (1000 US-1, VERO BEACH, FL 32960, (772) 617-4793) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE AIR COMPRESSOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED. THE CONTACT STATED THAT SHE WAS CONCERNED ABOUT DRIVING THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 39,000.

NHTSA ID
11408014
Incident
Apr 1, 2018
Mileage
39,000 mi
ElectricalEngine
Filed Jan 5, 2021

1ST AT 20K MILES (2019) MY CAR WOULDN'T START, STUCK LATE NIGHT. CALLED AAA, BATTERY HAD DEAD CELL SO I PURCHASED ONE FOR $200. MONTHS LATER FOUND OUT IT WAS COVERED UNDER THE WARRANTY. I STARTED SMELLING COOLANT (2019). DEALER SAID IT WAS THE WATER PUMP. IT WAS COVERED UNDER WARRANTY. STARTED SMELLING COOLANT AGAIN (2019), IT WAS A VALVE, WASN'T COVERED. THE CAR WOULDN'T START, DEAD CELL IN THE BATTERY AGAIN (2020) STARTED SMELLING COOLANT (2020), NEEDED A NEW RADIATOR, WASN'T COVERED UNDER WARRANTY. STARTED SMELLING FUMES & HAD A LEAK. IT WAS THE PURGE SOLENOID NEEDED REPLACING, ANOTHER $500. TWO MONTHS AGO (NOV 2020) THE AMBIENT SENSOR WENT OUT $450. NOW TODAY (JAN 5, 2021) THE AIRBAG LIGHT IS ON AND I'M TOLD IT'S THE INTERNAL SDM FAULT AND WILL BE CLOSE TO A $900 REPAIR.

NHTSA ID
11386608
Incident
Jan 5, 2021
Mileage
30,000 mi
ElectricalEngineSteering
Filed Jan 4, 2021

WHILE DRIVING MY CAR "GLICHES" THE LIGHTS GO ON AND OFF, THE POWER STEERING STOPS THE LOCKS GO UP AND DOWN AND ALL ELECTRONICS IN THE DASHBOARD GO ON AND OFF. LAST WEEK, IT SHUT DOWN IN THE MIDDLE OF THE ROAD AND I COULD NOT START IT FOR ABOUT 5 MINUTES OR SO. GOT IT HOME AND IT DID IT AGAIN THE NEXT DAY WHILE IT WAS PARKED. THIS STARTED YEARS AGO. BROUGHT IT TO DEALER THEY SAID "WELL IT'S NOT DOING IT NOW". I WAS NOT EDUCATED AT THE TIME TO PUSH FOR ANYTHING TO BE DONE. THE STOPPING COMPLETELY WHILE DRIVING THAT HAPPENED LAST WEEK.

NHTSA ID
11386393
Incident
Dec 30, 2020
Mileage
100,000 mi
Engine
Filed Dec 16, 2020

I HAVE HAD MY VEHICLE IN THE SHOP MULTIPLE TIMES SINCE I HAD IT. FIRST THERE WAS A SMELL OF COOLANT IN THE CABIN. ALTHOUGH MISDIAGNOSED INITIALLY, THE MEACHANIC LATER FOUND THAT THERE WAS TRULY AN ISSUE WITH THE CAR. BUT IN THE LAST YEAR I HAVE HAD TO HAVE THE THERMOSTAT REPLACED, THE HOUSING OF SOMETHING WAS REPLACED A MONTH LATER (I DO NOT REMEMBER THE NAME OF THE PART). AND A THIRD REPAIR WAS ALSO DONE. ALL FOR THECOOLANT THAT CONTINUES TO FIND A WAY TOLEAK OUT. NOW I AM BEING TOLD AGAIN, BY THE DEALER, THAT THE COOLANT IS LEAKING AGAIN, THIS TIME FROM THE WATER PUMP. I HAVE PAID A NICE CHUNK OF CHANGE TO AND BEING TOLD I NEED TO SPEND YET ANOTHER $400+. I HAVE OWNED MANY CARS AND NEVER HAD THIS ISSUE. I WAS ALSO TOLD BY THE DEALER THAT MANY PEOPLE WITH SONICS ARE HAVING THE ISSUES WITH THE COOLING SYSTEM. I ASKED ABOUT A RECALL AND HE TOLD ME TO MAKE A COMPLAINT. WHENEVER THE ISSUE ARISES AGAIN THERE IS ALWAYS A STRONG SMELL OF COOLANT IN THE CABIN OF THE CAR. THEN THE CAR STOPS BLOWING HEAT AND AIR, OR BLOWS IT INTERMITTENTLY.

NHTSA ID
11383777
Incident
Dec 7, 2020
Mileage
90,000 mi
Driver assistanceElectricalEngine
Filed Mar 12, 2020

MY CAR STARTING KILLING ON ME I HAD TO LEAVE IT AND GET A RIDE HOME A COUPLE OFF TIMES THE LAST TIME I HAD IT TOWED TO A DEALERSHIP WERE THEY FOUND OUT THE CAR WAS SOLD TO ME WITH A LOCK OUT DEVICE ON IT THE CAR HAS BEEN IN THE SHOP SINCE 1-29 I GOT FIRED BECAUSE OF NO TRANSPORTION

NHTSA ID
11317647
Incident
Jan 2, 2020
Mileage
10,969 mi
EngineFuel system
Filed Jan 21, 2020

I PURCHASED MY CAR ABOUT A YEAR A HALF AGO AND IT HAS BEEN GIVING ME NON STOP ENGINE AND LEAK ISSUES. I HAVE A 2015 CHEVY SONIC TURBO AND SO FAR I HAVE TAKEN IT TO THE MECHANIC 8 TIMES TO FIX COOLANT LEAKS, FIX MY FUEL THERMOSTAT AS WELL AS REPLACE A HEAD GASKET AFTER HAVING IT BLOW.

NHTSA ID
11300613
Incident
Jan 16, 2020
Mileage
112,000 mi
Engine
Filed Sep 18, 2019

VEHICLE FELT LIKE IT WAS VIBRATING WHILE IN IDLE AND WHEN PRESSING DOWN ON THE BRAKES. THERE WAS VERY LOW ACCELERATION AND IT FELT LIKE MY CAR WAS IN NEUTRAL. I WAS DRIVING ON A CITY STREET GOING ABOUT 20-25 MPH. THE CHECK ENGINE LIGHT TURNED ON. I TOOK MY CAR IN AND HAD TO HAVE THE IGNITION COIL AND IGNITION BOOT REPLACED AT 30,345 MILES.

NHTSA ID
11256299
Incident
Sep 15, 2019
Mileage
30,345 mi
ElectricalEngine
Filed Aug 31, 2019

MY CHEVY SONIC STALLS WHILE DRIVING IT. THE ENGINE SHUTS DOWN, DOOR LOCKS CYCLE, LIGHTS GO ON AND OFF, POWER STEERING AND BRAKES GO OUT, RPMS DROP, AND UNTIL TODAY, IT TURNS BACK ON, THE RPMS JUMP SKY HIGH, AND THE MOTOR REVS BACK TO LIFE AND IT GOES FINE AGAIN FOR AWHILE. BUT TODAY IT STALLED SITTING IN MCDONALDS PARKING LOT AND NOT ONLY DIDN'T START AGAIN, BUT HAD TO BE JUMPED. I CAN ONLY IMAGINE WHAT WOULD HAVE HAPPENED IF MY GRANDDAUGHTER AND I HAD HER IN HEAVY TRAFFIC WHEN THAT HAPPENED! EVERY OTHER TIME IT'S BEEN GOING DOWN THE ROAD. ONE TIME I WAS IN TRAFFIC AND IT ALMOST CAUSED AN ACCIDENT. IT HAPPENS ALMOST EVERY DAY. ESPECIALLY IF I'M RUNNING THE AIR CONDITIONER. IT HAPPENS AT ALL SPEEDS. I HAVE TAKEN IT TO 3 MECHANICS AND IT DOESN'T 'THROW ANY CODES'. IT DID SHOW A LITTLE ISSUE WITH THE ALTERNATOR SO WE REPLACED IT BUT IT DIDN'T CHARGE ANYTHING. I'VE DONE SOME RESEARCH AND THIS IS A COMMON ISSUE WITH SEVERAL YEARS OF CHEVY SONIC CARS. UNFORTUNATELY OUR OUTCRY IS GOING NOWHERE. GM SEEMS DETERMINED TO IGNORE US UNTIL SOMEONE DIES AND THEY GET SUED. CAN YOU PLEASE GET THEM TO RECALL THE ENGINE OR WHATEVER IT IS THAT'S CAUSING THIS ISSUE? PLEASE?!!! THANK YOU!

NHTSA ID
11252537
Incident
Aug 30, 2019
Mileage
65,000 mi
Engine
Filed Jun 22, 2019

ANTIFREEZE OVERFLOW HAS A LEAK AND IS BUBBLING OVER THE ENGINE LIGHT ON EVEN AFTER TAKING IT TO CHEVY DEALER. CAR STUTTERED AND HAD BAD SMELL AIR DOES NOT GET COOL WE HAD TO PULL OVER AND THE SECOND TIME THIS HAPPENED THE CAR WOULD NOT START

NHTSA ID
11221906
Incident
Jun 1, 2019
Mileage
7,200 mi
ElectricalEngineFuel system
Filed Mar 25, 2019

LIGHT COME ON CHECK ENGINE AND THE ROAD SLIPPING SIGN

NHTSA ID
11191503
Incident
Mar 14, 2019
EngineFuel systemPowertrain (other)
Filed Feb 7, 2019

JUNE 2015 THE DEALER SWITCHED CARS WHEN WE REFUSED THE OPTIONS AT THE CLOSING OF THE DEAL TO A BASE/STANDARD CAR. A WEEK OR SO AFTER PURCHASING THE CAR A TIRE POPPED AS WE DROVE DOWN THE STREET. IT IS VERY LOUD IN THE MORNING. A HIGH PITCHED SQUEAKING SOUND. NEXT WE HAVE BEEN SMELLING GAS,OIL/FLUID LEAKING FROM THE CAR. THE DRIVEWAY IS STAINED FROM IT. THE THERMOSTAT HAS BEEN CHANGED 3 TIMES. IT HAS BEEN JERKING,STALKING, SPUTTERING. THE ANTIFREEZE RESERVOIR HAS BOILED OVER SEVERAL TIMES. IT SMELLS LIKE SOMETHING ELECTRICAL IS BURNING. THE AIR CONDITIONER DOESN'T COOL WELL. THE WINDSHIELD WIPERS TORE UP IN LESS THAN A YEAR.THEALERSHIP DOESN'T KNOW WHY THESE THINGS HAVE HAPPENED THEY WANT TO DO MAINTENANCING TO SEE IF THAT FIXES IT. OVER $1000. WE GOT THIS COMPACT CAR TO SAVE AND SURVIVE. THIS HAS BEEN AN EXPENSIVE CHEAP CAR.

NHTSA ID
11174939
Incident
Nov 10, 2015
Mileage
4,000 mi
Engine
Filed Dec 17, 2018

THE FUEL INJECTOR IS NOT WORKING PROPERLY AFTER ONLY HAVING MY CAR FOR 6MONTH.

NHTSA ID
11162029
Incident
Dec 14, 2018
Mileage
3 mi
EnginePowertrain (other)
Filed Sep 17, 2018

VEHICLE DOESN'T ALWAYS HAVE TO BE IN MOTION HOWEVER MOTION IS TRIGGERING THE ENGINE TO STAY ON OR AT TIMES DISAPPEAR FOR A SHORT PERIOD OF TIME. CONSTANT DIAGNOSTIC TESTING CODE IS P0011. I HAVE BEEN TO GENERAL MOTORS DEALERSHIPS AS THEY REFUSE ME TO GO OUTSIDE THEIR DEALERS FOR REPAIRS; RESULTS POSSIBILITY OF DENYING ME COVERAGE UNDER MY POWERTRAIN WARRANTY. I HAVE PUT IN CASE AFTER CASE WITH THEIR COMPLAINTS AND ONLY RESULTS INTO SOMETHING I ALREADY DO IS 'SIMPLY' CALL DEALERSHIP. I AM DRIVING A VERY UNSAFE UNPREDICTABLE VEHICLE THAT IS NOT BEING FIXED. I HAVE BEEN TO 3 OF THEIR DEALERSHIPS TOTAL TIMES OF 8 TIMES. CURRENTLY STILL TILL THIS DAY WITH SAME ISSUE.

NHTSA ID
11129830
Incident
Jun 9, 2018
Engine
Filed Apr 25, 2018

CAR IS LESS THAN 3 YEARS OLD AND THE RADIATOR IS RUSTED/CORRODED. THIS KIND OF CORROSION SHOULD NOT HAPPEN ON A CAR LESS THAN 3 YEARS OLD. I KEPT SMELLING SOMETHING BURNING WHEN DRIVING ON THE HIGHWAY, SO I STARTED MONITORING THE COOLANT LEVELS. I WAS ADDING MORE THAN A GALLON OF COOLANT EACH MONTH.

NHTSA ID
11090198
Incident
Apr 24, 2018
Mileage
38,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Elsewhere on this vehicle

Data sources

Data on this page last refreshed .