2014 Chevrolet Sonic

Around April of 2025, I noticed loud engine noises and cold start loud noises coming from the engine. My car has been in the shop multiple times since then and I opened a case with GM about multiple repair issues with my 2014 Chevy Sonic LT even though I take excellent care of the vehicle and perform all maintenance on the vehicle, and now this loud engine noise issue and leaking oil. I was driving home from a relative's home Saturday night Dec 27th late evening on the expressway when I noticed my car driving very sluggish and jerking and make extremely loud engine noises and continued burning oil smell in the cabin of the vehicle. No check engine light or oil light, now I had stopped by the service department earlier in the week when and oil pressure light came on, and they stated no issues. I made it home without incident, but the car was not running right. The car was brought to the dealership service department Monday Dec 29th, and they informed me they found broken plastic pieces of guard rails that secure the timing chains in the engine which may have caused serious damage to the engine. The dealership wanted 4k dollars to repair it after they could not properly diagnose a known online issue that I found out a lot of these Chevy drivers have found out about and having me repair other items on the car instead of fixing the leaking oil problem and whatever was going on in the engine. The manufacturer has not inspected this issue now only the service department at the local Chevy dealership has, however I had a case open with GM before this final incident occurred on Nov 1st after my last repair and complaint to the dealership about loud engine noises. GM would not take my concerns seriously and stated we are sorry, but your car is out of warranty even though this is a known issue of this plastic guard rail failing and other serious engine issues with Chevy. I would like the NHTSA to be involved in this matter and investigate this matter if possible.

Electric My coolant And leaking issues My car door look when keys are inside ignition

The pretensioner cable that secures the end of the seatbelt to the seat frame had severed. I am told the pretensioner has a small explosive inside its barrel that I assume releases some sort of spring internally upon impact of a collision. The release of this spring is supposed to pull the pretensioner cable downwards and by extension pull the seatbelt end tighter. This in conjunction with the seatbelt retractor would then keep the driver or passenger tight to the seat in the event of an accident. I notice the cable for the driver side pretensioner over the last few months had strands of steel breaking until it had finally completely severed. I have kept both halves of the severed cable if inspection is requested. This is an extremely unsafe situation to occur. Had I gotten into an accident with the cable partially or completely broken it would have rendered the seatbelt essentially useless. There were no warning lights or associated codes ever displayed from the vehicle’s computer. There were no inspections done by insurance, police, manufacturer, dealership or any others. I ended up ordering the part online to fix myself. I used all manufacturers torque specs and procedures to replace. I fixed it myself because it was my daily driver vehicle and I needed to have it working safely as soon as possible. When I noticed the cable had completely broken I drove my vehicle home and did not drive it again until I had the new part and it was replaced which was about two weeks later. I had asked the dealer and searched for recalls for my vehicle and neither the dealer nor the nhtsa recall search showed anything regarding issues with the pretensioner cable. I did end up seeing GM had issued a recall for a similar pretensioner cable (about 2500 vehicles) for a few of their full sized trucks and SUVs. The claim was based on where the cable was in the vehicle it had abnormal amounts of metal fatigue from drivers exiting and entering. I believe the same issue happened to me.

The car is completely shutting off all power while driving. The doors will start locking and unlocking and the no power at all. I have taken it to multiple mechanic and it reads no codes. It has done this to me on the Highway. car was completely stopped and i was very lucky a car did not hit me. it usually will start again after shutting down

Vehicle keeps throwing error code P2138 there is a current known issue that GM is aware of see notice 070604019F. Water gets in the electrical connections of sensors and is an issue as it causes check engine light and can decrease power of the acceleration of the vehicle which is a safety hazard. My vehicle has been with the dealer now for a third time for same issue. They’ve had it for 3 weeks and 2 days total. Still an issue.

When turning the vehicle off, the key refused to come out. Saw online that many other people were also having this issue and I believe it should be a recall. I also discovered my head gasket has water in it, and it's a common issue that many vehicles like mine are having.

Car has problems starting after gas is put in it u have to step on gas peddle several times to get it to start car does not have working backup camera in it or even a working radio in it car has a check engine light on I took it to were I ought it twice they cleared codes out of car but codes come back on all the time I would like to exchange this vehicle if possible can u help me Manns Performance Vidalia Ga 30474 is were it was purchased 6/01/2023 this has been a issue since I got from dealership crack in window after having it two weeks even with windows cracked sitting in the yard

2014 CHEVROLET SONIC. CONSUMER IS SEEKING REIMBRSEMENT FOR REPAIRS MADE TO VEHICLE. THE CONSUMER STATED AN ADDITIONAL $1,468.61 IN EXTRA REPAIRS (REPLACING FRONT STRUTS, SHOCKS, SWAY LINK BAR AND PIA EVAPORATOR PURGE VALVE). THESE REPAIRS WERE DONE BEFORE 90,000MILES. THE FOLLOWING YEAR THE CONSUMER SPENT $1,930.75 ON EXTRA REPAIRS WHICH INCLUDED REPLACING THE WATER OUTLET, THERMOSTAT HOUSING, A/C COMPRESSOR AND CLUTCH AND ALL DONE AT 101,00MILES. AND THIS YEAR CURRENTLY $4501.50. HERE IS A LIST OF THOSE REPAIRS: 1)BOTH OXYGEN SENSORS ON 1/3/2023 - $232.97 2) THE FRONT CV SHAFT ON 1/7/2023 - $1,082.02 3) THE VALVE COVER, COVER GASKET, AND PCV VALVE HOSE ON 3/ 10/2023 - $840.96. 4)THE RADIATOR, COOLANT HOSES, HOSE CLAMPS, AND WATER PUMP ON 3/l 8/2023-3/ 19/2023 -$2,345.55

My auto started out with a Check Engine Light. I noticed the engine smelled of overheated radiator and coolant smell. Parts were replaced for fix (Hose)...but check engine light continued as well as the overheated coolant smell. The auto was placed for checking on machine for codes for check engine light, but none of codes made sense to Mechanic. Told to bring back for further testing/looks. Brought back several times. No idea what was wrong but last time I was told I needed to leave for extended testing and test driving as gears were not shifting in D struggled engine for me, no acceleration and RPMs raced at times. (Dangerous and unpredictable on highway and in town). Now I turned in for testing to Chev Mechanic, and now am facing a part that was replaced in control of electrical (over $500) and after they repaired that and tested I am told that I have a TOTAL TRANSMISSION REPAIR over $5200 - for a 2014 auto!!! It was in with dealership mechanics a total of 6-7 times. I was informed the electrical controls were confusing the engine reactions. Auto a dealers for $5200 + $500 repairs now 20230702 and problems seen & looked at since March for smell of overheating radiator, fix if hose (wonder if really needed), continued check engine light, refill of radiator fluid, codes checked and did not give correct evaluation. Eventually the transmission needs replaced out, at time that there is RPM revs, no acceleration while driving and gears heard to struggle in engine. Mileage now over 97000. Estimate on mileage, i do not have all documentation before me. Extended Powertrain warranty from dealership started at year 2015!!! Anything older not allowed, so I am told I have to pay the entire bill.

Passenger airbag not active even though an average sized (160 pound) adult is sitting there.This is very very dangerous.Apparently a pressure sensitive monitor in the passenger seat is not working correctly.I have read many many complaints about this on the Chevrolet Sonic on this website.This started out as a sporadic problem,but now is constant.

Overall and to the best of my knowledge, the malfunctioning and failures on my vehicle were the suspension and engine. They are the culprits and it’s honestly very scary and traumatizing to have them completely fail, especially since no one is ever prepared for accidents and/or potential death to happen. Otherwise it wouldn’t be called an accident. With the suspension overall, it’s just awful. CV Axel, control arms, everything with the suspension just failed. With driving over the tiniest bump on the road you feel your is about to literally fall apart at any minute because of the clunking and metal in metal noises it produces. The engine is faulty as well and I am pretty sure the faulty engine happens due to the faulty suspension. When I look under my car there’s something leaking. I don’t know what it is, but it’s poses a safety risk not only for the driver and the passengers, but also to the rest of the world. I know that there was a recall early on about fuel tank breakage or something that could lead to fire ignition. But my vehicle according to my VIN wasn’t on this recall. I have contacted the dealership and a certified service center to inspect these issues. It’s been roughly 4 weeks now and they have been extremely negligent and apathetic. With these issues, everyone’s safety is at risk. My suspension went out and could’ve caused a more catastrophic accident. A fire could’ve broken out with other vehicles surrounding me cause major injuries and death. I’ve seen and read many posts and testimonials and threads online from various independent resources that state very very closely the same issues. Almost verbatim. I’ve been trying to get these issues inspected by the dealership, but they all give me the runaround and don’t want to fix not find a solution. The check engine light has always been on since I’ve Owen the vehicle and the dealership where I purchased this vehicle said having the check engine light on is okay. I need help getting repairs done!

The contact owned a 2014 Chevrolet Sonic. The contact stated that while his spouse was driving approximately 35 MPH she noticed smoke being emitted from under the hood. The contact stated his spouse saw no warning light being illuminated. The spouse pulled off to the side of the road and exited the vehicle safely when a fire began to burn from under the hood. The fire department was called and extinguished the flames with water. The police were also on the scene and wrote an incident report. The contact had the vehicle towed to his residence. The contact was advised by his insurance provider that the vehicle would be listed as a total loss. The manufacturer had not been informed of the failure. The failure mileage was approximately 60,000.

The contact owns a 2014 Chevrolet Sonic. The contact stated that while driving at various speeds, the A/C failed to function as intended. The contact stated that there was hot air blowing from the vents at all time. In addition, the contact stated there was an abnormal sound coming from the engine, with an abnormal fuel burning odor on the interior and exterior of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic; however, no cause for the failure was found. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 14V417000 (EQUIPMENT). The failure mileage was unknown. The VIN was not available.

The contact owns a 2014 Chevrolet Sonic. The contact stated that while driving at an undisclosed speed, the steering wheel seized and the vehicle then stalled. The contact pulled over at a gas station and parked the vehicle. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 67,000.

THE RELEASE BUTTON FOR THE GEAR SELECTOR FOR PARK THRU REVERSE ON THE CENTER CONSOLE BROKE APART INCLUDING A SPRING THAT IS A PART OF THE DESIGN UNDER NORMAL USE. THIS RENDERS THE CAR TO FAIL IN NUMEROUS UNPREDICTABLE/UNSAFE WAYS e.g. KEY IS STUCK AND CAN'T BE REMOVED/UNABLE TO MOVE GEAR SELECTOR/STUCK IN A CERTAIN GEAR INCLUDING NEUTRAL (POSSIBLE ROLL AWAY). ON THE INTERNET THIS IS REPORTED AS A PREVALENT DEFECT WITH THIS CHEVY CAR AND A $300 DEALER REPAIR. LOOKS AS IF YOU CHECKED WITH OWNERS OF THIS CAR THEY WOULD ALL REPORT THIS FAILURE.

"off" remains illuminated on my passenger airbag light whether or not someone is sitting in the passenger seat. It's actually somewhat rare to see "on" illuminated. There was a recall on this model for airbag issues but my vehicle specifically was not recalled. My vehicle was recalled for catalytic converter but I'm still getting codes. Most of the problems the Sonic has been recalled for, my vehicle has symptoms of but I get cannot afford to pay repair cost up front and I cannot find a mechanic who would be willing to take the steps to report my vehicle should've been apart of the recall.

Car has no temperature gauge. Car had oil change. Then went to put gas. When I started in the highway. The temperature sensor turned on. This was terrifying as it was night time and I was on a highway on my way to visit family. The car could of caught on fire. Pulled over called a tow truck. Water pump was replaced and cylinder heads and gaskets. This was done through the warranty company. Car was returned to me on 14 December 2021 and was in a repair shop the following day because of the check engine light was on. Car now needs new motor as coolant was going inside the motor. Sensors had never gone off before that day. Currently car is in the chevy dealer for over a month trying to figure out who will pay for the repairs as I also had an extended warranty. Car had 57000 miles when it failed. Chevy repairs will be of about $7000.

The contact owned a 2014 Chevrolet Sonic. The contact stated that while driving at various speeds approaching a parking lot and slowing down to turn, the vehicle behind was speeding and crashed into the rear of the vehicle. The vehicle then flew forward and crashed into a pole. No airbags deployed. The passenger in the driver's side rear seat sustained whiplash to the neck. The contact and her daughter sustained minor injuries to the right hip, right knee, and right shoulder. A police report was filed. The passenger in the driver's side rear seat was treated via ambulance and the contact and her daughter received medical attention from a chiropractor. The police towed the vehicle to a lot where it was deemed a total loss. The dealer was contacted and informed the contact that no recalls were under the VIN. The manufacturer was made aware of the failure and started an investigation. The failure mileage was approximate 88,000

This car just dies on me randomly while driving at high or low speeds and is very dangerous, the dash lights go out sound stops working and you have to stop put it in park and turn car off and restart to get it started again. I have had it to service department and there are no codes generated, this started back in 6/2021 and continues to be a problem

Traction contorl light and check engine light comes on and its throwing my car into limp mode. we have changed out the throttle body and the pedal sensor and still having the same problem.