The 2015 Impala uses a six-speed automatic transmission.
In the 2015 model year, Chevrolet offered two engines for the Impala—a 2.5-liter inline-four and a 3.6-liter V6—and both were paired with a six-speed automatic transmission. The sedan also comes standard with front-wheel drive and does not offer a manual transmission in this generation.
Transmission configurations by engine
Here are the two engine-and-transmission pairings that were available in 2015 Impalas:
- 2.5L 4-cylinder engine paired with a six-speed automatic transmission; front-wheel drive.
- 3.6L V6 engine paired with a six-speed automatic transmission; front-wheel drive.
In both configurations, the Impala employs a conventional automatic transmission designed for smooth shifts and reliable daily driving.
Performance considerations
Because both engine options use the same six-speed automatic, the difference in performance mainly comes from the engine itself and gearing, not the transmission hardware. The V6 delivers more power, while the 2.5L four-cylinder prioritizes efficiency.
Summary
For the 2015 Chevrolet Impala, the transmission is a six-speed automatic across all available engines, paired with front-wheel drive. This setup was standard and is a key part of the model’s balance of comfort and efficiency in that year.