The 2005 Cadillac CTS-V uses a Tremec T56 six-speed manual transmission, and there was no factory automatic option for that year.
Transmission details
The CTS-V’s performance-oriented drivetrain centers on GM’s high-output V8 paired with a traditional manual gearbox. The Tremec T56 is a six-speed manual designed to handle the LS6 5.7-liter V8’s torque and horsepower, with a robust clutch and reinforced internals to match spirited driving. In this first-generation V-series, Cadillac offered the manual transmission as the standard (and typically only) option for the 2005 model year, emphasizing driver involvement over automatic convenience.
Before listing the key features, it’s helpful to note that this configuration contributes to the CTS-V’s distinctive driving character—engaging, precise gear changes and strong on-road performance.
- Tremec T56 six-speed manual transmission
- Hydraulic clutch and a short-throw shifter for precise, responsive shifting
- Designed to handle the LS6 V8’s torque and horsepower in a performance-focused chassis
- No factory automatic option for the 2005 CTS-V; manual-only in this model year
Together, these features define the CTS-V’s core drivetrain experience: a hands-on, performance-oriented driving feel rather than luxury-car automatic ease.
Notes for owners and buyers
When evaluating a 2005 CTS-V, verify the transmission type via the vehicle’s window sticker or build records to confirm it is indeed the factory manual. This model year is known for its manual-only configuration, which remains a key point for collectors and enthusiasts.
Impact on driving and ownership
Equipped with the Tremec T56, the 2005 CTS-V offers a hands-on driving experience with notably engaging gear changes and strong straight-line performance from the LS6 engine. The absence of a factory automatic option makes the CTS-V a more specialized car that appeals to drivers who prefer manual transmission enthusiasts’ characteristics rather than the ease of automatic shifting.
Summary: For the 2005 Cadillac CTS-V, the transmission is a Tremec T56 six-speed manual, with no factory automatic option—delivering a focused, engaging performance experience.