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My 2018 envision has been occasionally having the “parking brake released” message pop up on the cluster display when coming out of auto stop. Rarely it will be accompanied by a beep and the parking brake maintenance light coming on for a few seconds. The brake fluid is good and I don’t notice any issues with normal braking . Could this just be the sensor or maybe a faulty switch in the parking brake?
 

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Hello,

I don't know what happened the first time i tried to reply to this post. Well I also had this issue with my 2018 Buick Envision Preferred. This started a few months ago when temperature started to drop around freezing. The wife and I noticed the auto stop would engage at a stop light or other stops and then when engine restarted the parking brake released notification would appear on the info screen and the beeping of it being disabled. I wondered what it was but didn't know. Last week when this occurred the door locks actuators would cycle as to lock/unlock when the engine would restart. Then on Saturday morning the wife tried to go to work and presses the start button to start the vehicle and it clicked, once again she tried same thing, the third time the engine started and ran fine the rest of the day. She mentioned it to me and I suspected the battery. But the parking brake thing, locks, and a new one reduced steering notification went away when it was warm outside. I started to watch the voltage when starting the vehicle and it would read 11.5 - 11.7 volts until stated then run up to 14v like nothing. One again I suspected battery and ordered a new one. One surprise being that this is a Auto Stop/Start vehicle the battery runs around $100 more that a standard battery about $175 to $220 depending on manufacturer. I elected to buy a more expensive Optima Battery seeing that this last a little longer at $319 which is supposed to last up to 3X as long as a normal battery. One the battery came in i changed it and the symptoms have now gone away. My wife has made a comment that the engine during a restart at a light seems not to strain as hard when starting. Well I am not surprised it was the battery as they have a 3yr warranty and this vehicle was initially purchased in 2017 by the previous owner. So i guess 5 years is been ok for a battery that only gives a 3 yr warranty. I too had search for an answer to this issue and these are the only post i have seen thus far. Hope this info helps..
 

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Hello,

I don't know what happened the first time i tried to reply to this post. Well I also had this issue with my 2018 Buick Envision Preferred. This started a few months ago when temperature started to drop around freezing. The wife and I noticed the auto stop would engage at a stop light or other stops and then when engine restarted the parking brake released notification would appear on the info screen and the beeping of it being disabled. I wondered what it was but didn't know. Last week when this occurred the door locks actuators would cycle as to lock/unlock when the engine would restart. Then on Saturday morning the wife tried to go to work and presses the start button to start the vehicle and it clicked, once again she tried same thing, the third time the engine started and ran fine the rest of the day. She mentioned it to me and I suspected the battery. But the parking brake thing, locks, and a new one reduced steering notification went away when it was warm outside. I started to watch the voltage when starting the vehicle and it would read 11.5 - 11.7 volts until stated then run up to 14v like nothing. One again I suspected battery and ordered a new one. One surprise being that this is a Auto Stop/Start vehicle the battery runs around $100 more that a standard battery about $175 to $220 depending on manufacturer. I elected to buy a more expensive Optima Battery seeing that this last a little longer at $319 which is supposed to last up to 3X as long as a normal battery. One the battery came in i changed it and the symptoms have now gone away. My wife has made a comment that the engine during a restart at a light seems not to strain as hard when starting. Well I am not surprised it was the battery as they have a 3yr warranty and this vehicle was initially purchased in 2017 by the previous owner. So i guess 5 years is been ok for a battery that only gives a 3 yr warranty. I too had search for an answer to this issue and these are the only post i have seen thus far. Hope this info helps..
 

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Hi, we have a 2018 Premium model, the 4 year warranty still covers our vehicle through May of '22. Buick had a 4Y 50K bumper to bumper and 6Y 70K on the drive train on 2018 models. Everyone should be utilizing these if you still have time left in the warranty. I watch Scotty Kilmer on youtube all the time, mostly for the entertainment, but have learned a lot about repairs and what causes a lot of issues. 5 years is actually pretty good for the battery considering that the computer's for the most part are always drawing off the battery. Additionally, I originally bought a bypass for the start stop system and didn't install it as my Buick dealer said it would void the warranty. A little research and all you need to do is put the car in L, Low, and toggle the shifter to 6 (on the dashboard). Subsequently, the car will drive the same as if it is in D but will not engage the stop start feature when stopped. Better to bypass it as starting and stopping the engine is where the most wear, battery too, takes place on the car (again a Scotty Kilmer tip). Even though they claim heavier duty components, it is still better not to be bothered with it, the gas savings is negligible at best, the wear is greater and even though the system is pretty seamless I still found it an annoyance personally.
 
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