General Motors wants to introduce 30 new all-electric vehicles by 2025, two-thirds of which are set to launch in North America. However, before General Motors can achieve its vision of zero emissions, the automaker is improving the efficiency of its existing internal combustion products with automatic stop-start. Critically, 75 percent of 2021 Buick models come equipped with the fuel-saving feature.
Buick Enclave
For now, U.S. buyers have four Buick models to choose from for the 2021 model year, three of which come with automatic stop-start. These include the Buick Enclave, the Buick Encore GX, and the Buick Envision. Meanwhile, the “regular” Buick Encore (or rather, the non-GX model) does not offer automatic stop-start.
| Model | Auto Stop-Start |
|---|---|
| Enclave | S |
| Encore | - |
| Encore GX | S |
| Envision | S |
- S – Standard with all trim levels and powertrains.
Buick Enclave
Looking over the other rest of the General Motors brand lineup, half of all 2021 Chevrolet models offer automatic-stop start, while four out of seven 2021 GMC models offer the feature. Meanwhile, every 2021 Cadillac model offers automatic stop start.
Interestingly, roughly 70 percent of all General Motors vehicles sold in the U.S. last year were equipped with the feature.
Buick Encore GX
For those readers who may be unaware, vehicles equipped with automatic stop-start will turn off the engine when the vehicle is stopped, such as in traffic or at a stoplight. The engine remains off while the driver depresses the brake pedal, saving fuel in the process.
It’s estimated that automatic stop start will provide roughly six percent higher city fuel returns compared to similarly equipped vehicles without the feature.
Once the driver releases the brake pedal, the engine will restart.
Buick Encore GX
Some owners have criticized the feature as being intrusive, and have even engineered workarounds to prevent the feature from working. What’s more, some models are equipped with the ability to turn the feature off, including the Cadillac XT5, as GM Authority covered previously.
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Comments
Jonathan, thank you for the information. Which of the Buicks offer a defeat switch for the stop-start? I thought I read that the new Envision and the Encore GX have defeat switches.
Big Deal. Nobody wants it. It’s Government over regulation and frankly intrusion. A “light foot” does better. Buy a hybrid if you want real stop/start.
Absolutely hate it, As someone who has worked on cars as a hobby all my life I wonder how much wear and tear this puts on the engine. Since there is no on/ off button for this I find that if I gradually brake, ease off and gradually brake again for the most part the engine does not stop! Also I’m very skeptical to the amount of gas savings this annoying device produces on my 2020 Enclave Essence AWD.
Very sorry to hear that…reason number 244 why I won’t buy one., Dumbest thing I’ve ever seen
This “feature” was not even pointed out by the dealer during test drive of my new Enclave Avenir. It is very annoying and I’m having a hard time adjusting to this. Not sure I would have purchased it, if I knew it was coming.
I think it’s simply a matter of time as government keeps pushing automakers to expand mpg over the next 4 years.
I believe it is time for General Motors to give the owners of the Buick Enclave the option to have the system reset to turn this start and stop off. Seems like all they would have to do is to reprogram the system?
Glad my 2021 Envision has an override button for auto stop, but need a permanent override so it doesn’t need deactivated after every start. Auto stop is an Annoying and ridiculous feature! Let me decide if I want to save fuel not GM or the government.
Hate this for sure. I am searching all over how to defeat this stupid device.
Buick should know better. Like Biden is killing America, Buick is killing itself by building Buick cars in ChYna and those cars have that nuisance Stop Start technology. Buick is forcing American buyers to buy Japan built cars without Stop Start technology. I did. Shame on Buick. Come back to the country that made you, and stop that ridiculous Stop Start technology.
I hate this feature in my 2018 Buick Enclave. The dealer never even mentioned it. I’m so frustrated with it that I’m now looking for something else. I love my Enclave, but this #$%@ thing has me so frustrated. Even my mechanic said it was bad for the engine!! Shame on you Buick!
I thought i was having a serious mechanical problem. I can shut it off. Thank god. But i love my encore gx after having its junior model a 2019 encore preffered. Get over it. But if i couldnt shut it off id be applying for the lemon law.
I love my 2021 Buick Enclave Avenir.
All you need to do is shift to low gear and
Go to L9, it’s the same thing as normal D.