My 2013 Chevy Sonic developed ticking sound shortly after I bought it at 60000 miles. The ticking got worse over time and then check engine light came on. I scanned the codes and multiple four codes were found. P0171, P0496, P1101, and P2270. After doing some research it seemed to be that most Cruze, Sonic, and trax vehicles all had the same issues. I took it to the dealer for diagnostics and was informed the vehicle needed a new intake manifold, purge valve, PCV hose, and valve cover. They called the dealership to see if there were any recalls and the only one was the valve cover but would have to pay for diagnostics to see if they would cover it or not. The breather diaphragm in the valve cover goes bad due to a fault intake manifold on these vehicle models. There is a little orange gasket in the manifold that goes bad and causes the diaphragm to go out resulting in having to replace the entire system. The intake manifold not only causes ghat issue but causes the car to get jumpy at stops and stalling out. Have almost had a few people rear end me due to this. The purge valve goes out as well and when at the fuel pump the car will hesitate to crank or run at very low idle shutting off multiple times before it starts up and then runs rough until a decent amount of fuel has ran through the engine. The car would not get enough fuel when at stops or on highways and would also just lose fuel and cut the engine off. Those components have since been replaced by myself and no more issues. Chevy will not recall the parts that are causing the issues and therefore there is a safety issue when out on the highways.

- Jblm, WA, USA

The fuel system is running weak, for a car with only 30000 miles, one owner and full maintenance, the engine light came and go all the time and everything was checking

- Flushing, NY, USA

The fuel gauge is not running right I had to put stuff in to clean it out then it still drink the gas so much no leek or holes but the car drinks so much gas I have to fill it up at least 2 to 3 time in 2 weeks so the steering is bad on it as well when U take your hand off the wheel it wants to the right on it's own it dose not drive straight when U take your hands off the steering wheel it sucks U guys need to look at this before someone get killed from the steering wheel and the gas line asap

- Deer Creek, IL, USA

Began over heating at short distances. A/C went cool ran hot air tried to see if freon just needed refilling but even using alomst a full can still nothing. Having fuel issues big difference weeks apart fuel issues.then over heating, next unable to hold coolant, car was returned to dealer for repair. Still unable to keep coolant from leaking, while driving on interstate I 95 out of no where I loose the ability of speed then shuttering running hot again blew head gasket lost power hard to gain control and was almost hit 2 times by car behind and on side.car had to be pushed to shoulder and picked up with wrecker service. Mechanic had to come to car bc it wouldn't stsrt. He said the gasket is gone. Car will not do anything now. Will get receipts from dealer servicing, wrecker, auto zone mult coolant purchases, mechanic

- St Johns, FL, USA

The Sonic now runs very spotty, poor acceleration, and slow bumpy idle. Prior ball joint was replaced and the cv axil, entire engine replaced. Believe it or not, water pump replaced. These repairs, with receipts, constitute a lemon law breach. I should be entitled to a new car or compensated. Yes, the suspension issue did happen while I was driving, as well as the engine. Will upload documents soon.oh, one last thing, very difficult removing key from ignition, been going on 4 months.

- Suffolk, VA, USA

When the car is first started and turned off, the horn goes off each time. If parked but still running, the horn goes off every 2-3 minutes. When locking the car, it doesn't make any noise indicating it has been locked. When phone is plugged in, the music doesn't always work properly. There is a piece to one of the hoses that broke and is now making car run lean. When idling (at a red light or stop sign) the engine shakes vigorously and is harder to get back speed. When car is running and the hood is open, there is a hissing sound.

- Park City, UT, USA

My driver side window has went down 3 times only the driver side window switch quits they can roll it up at the shop with a computer but I cant

- Vansant, VA, USA

The contact owns a 2013 Chevrolet Sonic. After the vehicle was fueled, it failed to start. The dealer stated that the vehicle was out of warranty. The vehicle was not repaired. The contact replaced the fuel top, but the issue still persisted. The manufacturer was not notified. The approximate failure mileage was 10,000.

- Clarksdale, MS, USA

I purchased my car from a dealer, who set me up for an upside loan. Putting me into another Chevy with now 2 car loans to pay off. The car has stalled on me at different times while owning it. There have been issues since shortly after purchasing it with acceleration. It jolts and jumps when trying to accelerate. The check engine light is one, sometimes it goes off, then will come back on. I have not taken it to the shop yet assuming it would be a huge expense for them to fix and find it. Took it to a private garage and they could not find the issue either. This car is crap, I owe twice as much as its worth and I do not know what to do with it. I drive an hour to work every day on the highway and I am terrified I am going to crash every single day. It happens on the highway, on the street. In the morning when it start up it jolts and sputters. If you use the heat, it smells like its burning and there is a high squealing noise coming from the passenger side.

- Kunkletown, PA, USA

My Chevy Sonic has had a clicking noise since I purchased it. It goes dead when gas cap is removed and will not crank back. I had it worked on at a dealership $306 later it is still doing the exact same things. I purchased vehicle with 21 miles on it. I am on the road for my job. This vehicle has been a headache since purchase. I cannot afford another payment. Sure cant afford the bill from the shop when it doesn't fix any of the problems. The vehicle has had to be jumped off to start. I purchased new battery even when auto parts store tested old battery and stated it was good and alternator was charging. I am furious. What is a honest person to do"???"when dealership doesn't hold up to correcting the problem. Nothing to them it ruins your credit, not their name. I have had to be towed due to vehicle not cranking even when being jumped off. Help!!! dealership/GM should be honest and fix the problems. Apparently they don't value repeat customers!!!

- Ellijay, GA, USA

I was driving on the highway at between 55 and 65 mph. The side I was on had a long, steady incline upward. I had set my cruise control to about 63 mph. As I was going uphill the cruise control was supplying fuel to get to and maintain my speed at 63 mph. I was approaching another car in my lane and decided rather than pass, I would slow down. They were going quite a bit slower than me so came up upon them quickly. I pressed the brake to slow down but the brake was hard as a rock. It would not budge so it did not disconnect the cruise control and my car kept accelerating. I panicked and tried to use both feet on the brake. It still would not budge. I was within 2 car lengths of the car in front of me when finally the car reached the speed I had set the cruise control for and the brakes finally depressed. In hindsight, I had options I.e. putting the car in neutral, turning key off, turning to avoid a collision, shutting off cruise control, but this car was new to me, and in that moment I fully expected the brakes to work. Once I was in control, I tried to recreate the problem with no one around, knowing my options now. It happened repeatedly. A service tech also had it happen to them. First attempt at repair did not fix it. Second attempt did. It was a bad check valve. Apparently the check valve let air out of a booster, so I lost my brakes? the check valve also let fluid fill the booster. The master cylinder and vacuum were replaced as well. Looking back, there were signs, but no obvious ones. A random hi-pitched noise (air squeaking out the check valve). Loss of brake fluid. Dealer had to fill it when I bought it and I added some at 6 months. This was a dangerous and scary experience. I question the design to dis-engage cruise control and the quality of the check valves themselves.

- Gardner, MA, USA