2018 Avenir - electronic emergency brake - fault - EnclaveForum.net: Buick Enclave Online Community
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post #1 of 6 (permalink) Old 06-19-2019, 11:07 PM Thread Starter
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2018 Avenir - electronic emergency brake - fault

Hi, Looking to see if anyone else has had any problems with the electronic e-brake. Our 2018 Avenir has had 2 instances of the brake activating and not being able to be deactivated via the button. The situation happened 2 times, about 2 weeks apart. The first time the problem happened just down the street from our house after the car was put into park, we could drive the car back to the house safely with the brake still activated. The problem went away after parking the car overnight. The second time happened when the vehicle was in motion and like the first time it didn't lock up the rear wheels and my wife drove it (with some difficulty) to the dealer. The inspected the brakes and said there was no wear and they didn't detect any brake burning smell. They found 2 error codes but couldn't reproduce the problem so they did a re-calibration per some tech bulletin. The re-calibration apparently re-syncs the brake module to the button (sounds odd to me). Nothing was replaced and GM won't authorize any proactive replacements unless it happens again.

Anyone else experience something similar?
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post #2 of 6 (permalink) Old 06-20-2019, 07:53 AM
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Had mine for 18 months now and haven't seen that problem. Wonder if the push button might be the problem. But with all the computer stuff who knows . Be watching to see if it happens to you again and what the dealer does about it.

2018 Enclave Avenir
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post #3 of 6 (permalink) Old 06-20-2019, 08:37 AM
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Join Date: Aug 2018
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I have not had the problem either. The brake also releases automatically just by accelerating. Does yours do that? If it happens again I would go back to the dealer and tell them to correct it. It sounds like a problem with the linkage getting stuck. Don't let them snowball you.

2018 Dark Slate Avenir
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post #4 of 6 (permalink) Old 06-20-2019, 02:35 PM Thread Starter
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Yep, it usually does automatically release, but both times this happened it didn't though. I'm wondering if mileage factors in too. We have 21K miles on the car right now, we're doing close to 18k/year. It stays in a garage overnight so exposure to weather is somewhat limited - although it has seen a small amount of snow and of course the heavy rains last winter. It's my wife's daily driver and she's driving our daughter all over the place every day (hence the mileage), it's getting well used.

We'll have to see if it happens again and see what parts the dealer decides to replace.
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post #5 of 6 (permalink) Old 06-20-2019, 07:45 PM
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21.8K on my 2018 and not seeing that issue.
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post #6 of 6 (permalink) Old 07-07-2019, 01:32 AM
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We've had the same... did you try holding down the parking brake button for about 10 seconds? That does some sort of "reset" that released the brake for us.

Also had the calibration applied .... hasn't come back, so there's that.

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