What Transmission Does the Buick LaCrosse Use?

[DiMadison]

Buick LaCrosse uses the Japanese Aisin 6t40e transmission. The transmission, also known as a gearbox, is a mechanism used to change the speed and torque from the engine, capable of fixing or changing the gear ratio between the output shaft and the input shaft. The Buick LaCrosse is a mid-sized 4-door 5-seater sedan with body dimensions of 5026mm in length, 1866mm in width, 1459mm in height, and a wheelbase of 2905mm. The Buick LaCrosse is equipped with a 1.5T turbocharged engine and a 9-speed automatic manual transmission, delivering a maximum power of 124 kilowatts and a maximum torque of 250 Newton-meters. It features front-wheel drive, with a MacPherson independent front suspension and a multi-link independent rear suspension.

[LaGenevieve]

I've been driving a Buick LaCrosse, which commonly comes with an automatic transmission, primarily the 6-speed automatic developed by GM itself. The older models all used this, and the gear shifts are quite smooth. The new generation has added a 9-speed automatic, which is more efficient, making it more fuel-efficient and quieter on the highway. The transmission uses a torque converter and planetary gear set, tuned for comfort, unlike some dual-clutch transmissions that have strong jerking sensations. Regular maintenance is crucial; I recommend checking the transmission fluid every two years and not delaying it, otherwise, shifting may become sluggish as it ages. Overall, the LaCrosse's system is highly reliable and suitable for city commuting.

[VeraLynn]

As a long-time owner, I find the LaCrosse's transmission very user-friendly. Early models generally used a 6-speed automatic transmission, which was later upgraded to a 9-speed, providing smoother acceleration with more gear ratios. In daily driving, gear shifts are almost imperceptible, especially in heavy traffic where it doesn't randomly shift. This is thanks to GM's optimized control system, which works seamlessly with the engine's steady output. However, it's important to watch out for oil pressure issues; prolonged intervals between oil changes can lead to unusual noises. After 5 years of driving, I've never needed major transmission repairs, experiencing fewer issues compared to other brands. It's worry-free and cost-effective, making it an ideal choice for family use.

[VonJaxon]

After driving different cars, I've come to appreciate the advantages of the LaCrosse's automatic transmission. It mostly comes with either a 6-speed or 9-speed automatic gearbox, featuring a simple structure that's easy to maintain. It offers quick starts and smooth gear shifts, with a low-RPM high-torque design well-suited for Chinese road conditions. Additionally, its oil temperature management is excellent, preventing overheating even in high summer temperatures. Regular checks of the filter and seals are recommended to extend its lifespan. It's cost-effective, easy to maintain, and worry-free.

[DeKira]

From 2010 to the present, the LaCrosse transmission has undergone significant changes. Initially featuring a 6AT automatic transmission, developed through collaboration between GM and Aisin, it was known for reliability and durability. In recent years, it has been upgraded to a 9AT, with increased gears improving fuel efficiency, reducing highway cruising fuel consumption by approximately 10%. Technological upgrades include optimized electronic control units for smarter driving. However, some older models may experience slight jerking, which can be mitigated through software updates. Overall, the trend is towards greater efficiency and smoothness.