Service Information

Short Description
Service Information. Document ID# 1701750. 2006 Cadillac STS …. Procedure — Refer to the appropriate service manual for the complete fluid checking …

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Content
Service Information
Document ID# 1701750
2006 Cadillac STS
Info - New Product Announcement - Hydra-Matic 6L80
Automatic Transmission #05-07-30-023 - (Sep 2, 2005)
New Product Announcement — Hydra-Matic 6L80 Automatic Transmission
2006 Cadillac STS-V, XLR-V
2006 Chevrolet Corvette
with 6L80 Automatic Transmission (RPO MYC)
Purpose
This bulletin introduces and highlights features of the new Hydra-Matic 6L80 Automatic Transmission.
Introduction
The Hydra-Matic 6L80 is the first member of a new family of fully automatic, six-speed, clutch-to-clutch, rearwheel
drive, electronic-controlled transmissions that General Motors will be offering. The transmission consists
primarily of a four-element torque converter, an integral fluid pump and converter housing, a single and double
planetary gear set, friction and mechanical clutch assemblies, and a hydraulic pressurization and control system.
The four-element torque converter contains a pump, a turbine, a pressure plate splined to the turbine, and a stator
assembly. The torque converter acts as a fluid coupling to smoothly transmit power from the engine to the
transmission. It also hydraulically provides additional torque multiplication when required. The pressure plate,
when applied, provides a mechanical “direct drive” coupling of the engine…