general problems of the 2016 Chevrolet Spark

I was driving downhill with the car in l on a highway and brakes failed. I could not engage the brakes at all but somehow the car slowed to a stop and I managed to pull into a parking spot and park. Two lights came service intellitrak and service brake assist. The car has been inspected by the Chevrolet dealership that sold the car to me as well as an independant shop. One technician at the Chevrolet dealership reported he got zero brake pressure and claims that the car needs a new brake pressure modulator. The independant shop reported that they could not replicate the poor brake performance. Two technicians from this shop reported that the car is working as intended.

Both brake assist and stabilitrack go out in conjunction with failure lights (no fore-warning). The vehicle was repaired by a Chevrolet dealership with qualified ev tech. Within two weeks that same brake system failures occurred. The issue greatly increases the force needed to press the brake pedal and lengthens braking distance significantly. It also causes a failure in the braking system while at a stop. So after about 16 seconds braking power is reduced to the point of the car rolling forward / backward while the brake pedal is fully depressed.

I have had my 2016 Chevrolet Spark ev in for repairs to three chevy dealers for issues regarding random brake stuttering and complete brake failure resulting in running stop lights and stop signs going 30> mph. Failure and issues are intermittent, but it appears to be an overly sensitive abs/ regenerative braking system locking up the wheels and causing my brake peddle to become ineffective at stopping the car for brief periods of time. All dealerships have been at a loss for how to resolve this and have put me back on the road only to run more red lights after approaching at safe speeds. The rear right wheel makes odd clicking while this happens, leading the techs to believe it was a faulty sensor issue. However, all parts are out of stock for this car in the us and therefore I cannot get the vehicle repaired.

There were two incidents involving the same problem. While driving the vehicle on the highway and then on a main road the brakes locked and I had to use the emergency brake to bring the vehicle to complete stop. My mechanic replaced the engine brake vacuum pump after both incidents. The pump was broken in pieces on both occasions leading to metal parts falling into the engine during repair and needing to be retrieved to prevent engine damage.

As I was driving my brakes got hard preventing me from stopping ,I was driving on my way to pick my sister up and as I went to stop to turn into her driveway my brakes are super hard and I was unable to come to a complete stop for about a quarter of a mile when I took my car in to get it inspected they said my brake booster was out and when they took it off the brake booster vacuum also had to be replaced they said this rarely ever happens but there is also been multiple complaints of it and that there is no warning signs.

On the way back to my san francisco home from the novato Chevrolet dealer where I had just purchased a new black 2016 Chevrolet Spark ev my brakes stopped functioning. Just coming off the golden gate bridge, on a significant downhill grade, my brakes stopped functioning properly. At first the brakes started to be harder to push and then with my foot to the floor, provided almost no stopping power. The stopping distance was dangerously long. Very dangerous! just over 2 miles. There was no way for me to stop the car immediately. Only minimally . With my foot to the floor, I was able to slow the car enough that 2 miles later, I was finally able to pull over and come to a stop. On the display panel, there were warning lights continuously - "service break assist" - "brake" warning light - "abs" warning light - "tcs" warning light I was lucky to pull over with no (fatal) accident, and then waited almost 3 hours from dusk to night in the dark to have gm tow it back to the dealer, then get a cab, paying out of pocket to go home. The odometer read 37 miles.