Brakes Failed Problems of Chevrolet Tahoe Hybrid

The contact owns a 2008 Chevrolet Tahoe Hybrid. While driving 20 mph, the brakes failed to engage without warning. In order to stop the vehicle, the emergency brake had to be engaged. The vehicle was taken to the dealer. The technician was unable to diagnose the cause of the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 107,000.

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Summary: brake failure in a Tahoe Hybrid while driving, my chevy Tahoe Hybrid experienced almost total brake failure. Over several days, the brakes had became more and more "grabby. " on the day of the total brake failure, with normal pressure applied to the brake pedal there would be almost no braking power. But with just a little bit more pressure applied the brakes would suddenly engage with full braking power. Suddenly, this unhappy performance degraded into almost total brake failure. It felt like I had less than 1/30th of the normal braking power. I was not going fast, and nothing was in front of me to hit, and I was a block from my destination, so I continued slowly. Before calling for a tow I let the car sit, and I tried the car again. Surprisingly, I had my grabby brakes back! I nursed the truck to the dealership where they reloaded the computer program that controls the brakes. I experienced a second total failure just as I arrived at the dealership. The techs reloaded the computer program that controls the braking system and this addressed the problem, mostly. The brakes don't exactly feel like they used to, and there is a little bit of "sudden grab" to them, but the mechanic indicated that the performance is normal for a hybrid system.

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Power brakes failed on this hybrid vehicle. The dealer says the power brakes can fail if the hybrid battery pack loses power. The brakes continued not to work until it was towed to the dealer, and they reset the computer system. They said they don't know if or when it will happen again and cannot do anything to prevent it. They said if the brakes fail two more times we could use the lemon law to deal with the problem.