Excess gas –– we’ve all had it, no-one likes it, and the same holds true for your braking system.
GM says it needs to bleed the brake systems of 230,000 cars because the vehicles have rear brake caliper pistons that have hydrogen gas trapped inside that could be released into the brake systems. ZF, the manufacturer of the brake pistons, didn't properly temper and chrome-coat the pistons, causing hydrogen gas to remain trapped in the bodies of the pistons.
This problem may cause your brake pedal to feel “spongy” but it’s unclear if it affects stopping distances.keep reading article "There is Excess Gas Buildup in the Brake Caliper Pistons of 230,000 GM Vehicles"
There's a lot of news about airbags that can hurt you after a crash, but General Motors would like to remind you they can also make airbags that won't deploy at all.
GM is recalling 308,000 Impalas in the USA and Canada that could have blown fuses resulting in non-responsive airbags. GM started investigating the issue after an employee noticed cluster gauge issues and "passenger presence sensors" with no passenger present.…keep reading article "Why Aren't Impala Airbags Deploying?"