The contact owns a 2014 Chevrolet Spark. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that several unknown warning lights were illuminated. The vehicle was taken to the dealer; however, the vehicle had not been diagnosed. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 81,833.

- Oklahoma City, OK, USA

Transmission needs to be replaced per mechanic, costing around $3,5000-$5,000 Jerking or shuddering during the normal course of driving Hesitations while attempting to accelerate from a stopped position Engine stalls out or intermittently shutting off Rough start or hard shift and sudden acceleration Hesitations while attempting to accelerate from a stopped position

- San Ysidro, CA, USA

When taking off, sometimes the vehicle does not want to excellerate. It seems like the transmission is slipping or not switching gears-it makes a loud clicking gear sound. The vehicle also revs up really loud. It also sometimes feels like the vehicle sulks back when lifting your foot off the gas peddle when accelerating, more than it should. These mishaps make it nearly impossible to excellerate and is dangerous when excellerating onto the highway.

- Chesterton, IN, USA

Si my cars been having issues for about a couple of weeks now with speed and it-??s been driving rough, it hadn-??t given me any check engine lights so I went to a mechanic he changed the throttle body thinking that was the issue however the issue persisted and even got worse. I-??ve noticed it doesn-??t seem to go into gear when I-??m driving then when it finally does it looses power, it-??s also really high on the rpm-??s and when it-??s in park it-??ll seem like it wants to turn off.

- Perris, CA, USA

The contact owns a 2014 Chevrolet Spark. The contact stated that while driving at various speeds, the vehicle failed to accelerate. The contact stated that the accelerator pedal was depressed however, the vehicle failed to move. There were no warning lights illuminated. The vehicle was taken to bruce lowrie Chevrolet (711 sw loop 820, fort worth, tx 76134, (817) 264-7776) to be diagnosed. The contact was informed that the transmission needed to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was notified of the failure. The failure mileage was approximately 79,000. Consumer would like a buy back which was an option.

- Fort Worth, TX, USA

When you start on the gas the vehicle hesitates forever before going. I've nearly been hit several times due to this. It also takes forever to get over 60mph. The suspension was bad as well and had to replace.

- Universal City, TX, USA

When accelerating (between 5-30mph), the vehicle stutters to gain power/speed-it almost feels like there's a delay in the execution when trying to accelerate. The vehicle will then lunge forward, then sulk back as if the engine has temporarily lost power. The lunge, sulk back and stutter are progressively worsening, to the point that the plunge and sulk are occurring at more varying speed changes more and more frequently (accelerating or lifting off the gas peddle to slow down).

- Chesterton, IN, USA

During regular constant driving at speed 20-50mph acceleration lurges forward and fels like a cruise control is engaging, this is not a feature in this model. This has occurred now more than 3 times. Sending in vehicle fir review.

- Jensen Beach, FL, USA

Takata recall. My '14 Spark has gotten the coolant tank replaced twice. Also my rpms are shooting up and back down once I hit 50mph or faster. Also makes a high pitched noise when this happens. It's causing my car to jerk at faster speeds, also my car jerks at point of acceleration from 0mph when I'm making turns. Also the battery is continually being drained and it's not worn out.

- Park Forest, IL, USA

Since I received the transmission safety recall and took my vehicle in, it seems like they made my vehicle worse. It worked perfectly before the recall and now it seems like the transmission is going out. Also seems like my brakes lock while I'm driving and if I press on the brakes they engage very badly. It makes me jump forward.

- Algonquin, IL, USA

Car lost power and took longer to accelerate than normal while I was driving it. My car's dashboard showed the check engine light, reduced engine power light and a loss of traction control light. A car diagnostic recommended to change the throttle position sensor which I have done with no success. A dealership diagnostic said there was faulty wiring which would cost $600 to fix. I have not gone through with the repairs as of yet. I have met at least 2 other people that have this problem.

- Wilmington, CA, USA

Transmission fluid leak: P0075 error code. Vehicle previously had a fluid leak from a bolt securing transmission housing to engine. Leak visible under vehicle near the muffler pipe. Seal replaced on vehicle; approx mileage 15,000. Came to complete stop and when attempting to accelerate grinding noise/no power. Vehicle exhibited odd behavior in drive/tranmission. Vehicle went into limp mode several times at around 85,000 miles, on making a stop at a stop sign and would not accelerate. Reported to dealership only misfiring codes found. Failure at 101,000 miles. Made a complete stop after driving and vehicle would not accelerate. P0075 code. I found that the transmission is leaking from the same location, near the muffler pipe beneath the engine.

- Paso Robles, CA, USA

The contact owns a 2014 Chevrolet Spark. The contact stated that the vehicle experienced unintended acceleration while traveling various speeds. The failure occurred without warning. The vehicle was taken to an independent mechanic, but the failure could not be replicated. Mike anderson Chevrolet of Chicago (5333 w irving park rd, Chicago, il) stated that there were no safety issues present. The manufacturer was not contacted. The failure mileage was approximately 11,000.

- River Grove, IL, USA

While trying to accelerate from stopped position car will hesitate and stall out. Check engine light came on. Took to dealership and had 1400 misfire codes in history. Has been back to dealership 5 more times and cannot duplicate concern. Now while driving down the highway car has lost acceleration and stalled out a total 4 times in 85 miles. This is a huge safety concern for me. I've been lucky so far to avoid being hit but I shouldn't be playing russian roulette when I'm driving a vehicle with less than 30K miles on it. I've had the car since 12/2016 and it's been a complete nightmare. GM needs to recall all these cars before a class action lawsuit against them is filed. I'm paying for a car that I am scared to death literally, to die!!!

- Lansing, MI, USA

I have had to take this car in 4 times because the 4th cylinder keeps going out. The air barely works and I am just so disappointed in this car.

- Alexander, AR, USA

The contact owns a 2014 Chevrolet Spark. While driving 65 mph and slowing down, the vehicle stalled. On several occasions, while the accelerator pedal was depressed, the vehicle failed to respond. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the vehicle speed sensor and tcm needed to be replaced. The vehicle was not repaired. The contact stated that the failure was intermittent. The manufacturer was not notified of the failure. The approximate failure mileage was 80,000.

- Horton, KS, USA

The contact owns a 2014 Chevrolet Spark. The contact stated that the vehicle revved abnormally and accelerated even while the brake pedal was depressed. The failure occurred without warning. The contact stated that the vehicle operated normally until it was remedied per NHTSA campaign number: 16V422000(electrical system, equipment). The vehicle was returned to the dealer, but the failure could not be replicated. The manufacturer was notified of the failure. The failure mileage was approximately 24,000.

- American Canyon, CA, USA

Hesitate upon acceleration

- Columbus, OH, USA

This vechicle has been having problems with the braking system and speed. When I brake it's something coming up under my feet and then the traction light comes on, :slippery when it's wet light" on the panel. Now, I had taken it to bob bell twice and they keep saying they fixed it, but my car has been in the same conditioned. I want something done before I lose my life.

- Baltimore, MD, USA

While driving on the highway I was attempting to accelerate the vehicle but it did not respond and I had to pull to the side and let other vehicles pass.

- Los Angeles , CA, USA