Bigeasyvette

The emergency brake on my 2017 Z will not release, the button / switch
will not move, its like locked up......

anybody else had this issue ?

MThomas

I believe if you put the vehicle in drive and go forward the emergency brake will automatically release. Good luck.

Bigeasyvette

Thanks, I'll check that out shortly........

davepl

Did you by chance wash the wheels? I've had the main calipers rust to the rotor and stick, had to use the engine to unstick them. In theory I suppose it could happen to the eBrake as well (or you might have mistaken rusted rotors for a parking brake).

PLRX

Thomasmoto

My switch sticks sometimes. It did it the other day when my wife drove it and she didn't realize that it had done that and it ran the battery down.

Bigeasyvette

No I did not wash it........ it was fine about an hour b4 it started to act up. The switch will move up to set the ebrake, but wont release it...

It does work to put in in 1st and move forward a little, that makes it release.

tzoid9

in my M7, putting the car in first and trying to move forward, doesn't release the emergency brake. You must have an A8, correct?

Bigeasyvette

Nope, M7......2017

madrob2020

My '16 Z M7 releases using a bit of power to overcome but have to be careful or will stall.

ronsc1985

If yours doesn't it's broke. I have a 2017 m7 and not only does it do that but the owners manual describes this exact operation.

tzoid9

Interesting....I'll have to read the O/M again, I never saw that. I can tell you though, I have had the emergency brake on and tried to back the car up in reverse and it didn't budge. If it's on the 2017 that way, it probably is on the 2016, but I can tell you, it wouldn't move one inch in reverse with the emergency brake on. Maybe mine's defective.....

SCOTTCM

I had the same problem. Switch was bad. Chevy replaced it. Good luck.

JDMUSCLE

I don't know why chevy went the electric route for this.. the simple lever was easy to use and never caused an issue

thebishman

At first start up the car should not move when you touch the throttle; in other words the parking brake remains engaged.
After you have disengaged the parking brake after starting the car and driving off, it will disengage automatically when you touch the throttle; e.g. when you've come to a stop at a traffic signal, you engage the parking brake, then you roll into the throttle when the light turns green and it disengages automatically.
Bish

ronsc1985

Unless 2016 models are different something is broken. Any time I try to move the car by letting out the clutch and applying a little throttle the parking brake disengages. I have no idea if it works in the upper gears but it certainly does in 1st or reverse. Actually automatic disengagement of the parking brake is not uncommon in other cars. My wife's 2016 big Lexus does the same thing.

tzoid9

your description sounds like the "hill assist" feature on the M7 cars, other than it only holds the brake for something like 5 seconds. The O/M does say that the emergency brake can be released by putting the car in gear and driving, but it alludes to the fact this is not recommended. At least that's the way I interrupt it. Hill assist works automatically when stopped on an incline, there's no touching the emergency brake switch.

ronsc1985

Hill assist feature is only on A8 cars. This is a common feature on most modern auto equipped cars. As to m7 cars the only warning is not to use rapid acceleration when allowing auto EM brake release.

tzoid9

oh really, hill assist only on A8 cars? Not true, my friend. Standard feature and designed for manual transmission cars as the M7.

madrob2020

Guys, I believe some are confusing Brake Assist (in OM) with Hill Start Assist (HSA in OM). HSA is not on all Zs (it might only apply to A8s, OM states if equipped. I am sitting here reading the OM as I type so I'm not guessing or interpreting. It states automatic release of the EPB occurs for manuals when the EPB is applied at a stop on an incline so both feet can be used for clutch & accelerator to begin moving fwd again (no need to release EPB).