Buick Cascada 2016-2019 6T45 Transmission Transmission Specifications
Buick Cascada 2016-2019

Buick Cascada 2016-2019 6T45 Transmission Specifications

This comprehensive guide details the specifications of the 6T45 transmission used in the 2016-2019 Buick Cascada. It includes critical information such as gear ratios, torque capacity, fluid type, and maintenance intervals. The guide is designed to assist automotive technicians, enthusiasts, and owners in understanding the transmission's performance characteristics and maintenance requirements. By providing precise technical data, this guide aims to enhance the reader's ability to perform accurate diagnostics, maintenance, and repairs, ensuring optimal transmission performance and longevity. The information is particularly valuable for those involved in routine servicing, troubleshooting, or considering performance upgrades for their Buick Cascada.

Updated

Overview Specifications

This document provides comprehensive technical specifications and operational details for the 6T45 transmission used in the 2016-2019 Buick Cascada. The information is organized into key sections covering design, performance, maintenance, and troubleshooting. Use this guide to understand the transmission's capabilities, proper maintenance procedures, and how to address common issues. Whether you're a technician, enthusiast, or owner, this resource will help you maximize the performance and longevity of your vehicle's transmission.

How to Use

Use the search functionality to quickly locate specific terms or phrases within the document. Enter your query in the search bar and review the highlighted results for relevant information.

Navigate through the document by clicking on the section titles in the table of contents. Each section is divided into subsections, making it easy to find detailed information on specific aspects of the 6T45 transmission.

Key Specifications

Transmission Type

6-speed automatic

Maximum Torque

266 lb-ft

Drive Configuration

Front-wheel drive

Fluid Change Interval

45,000 miles

Weight

Approx. 180 lbs

Available Specifications

Design and Features

This section covers the design elements and unique features of the 6T45 transmission in the Buick Cascada. Understand the engineering behind its smooth operation and reliability.

Transmission Architecture
  • 6-speed automatic transmission
  • Front-wheel drive configuration
  • Compact and lightweight design
  • Advanced hydraulics for smooth shifting
  • Integrated torque converter
  • Enhanced durability for high torque applications
Key Features
  • Adaptive shift control
  • Electronic precision shift
  • Low internal friction for improved efficiency
  • Robust construction for long-term reliability
  • Compatible with modern engine management systems
  • Designed for a balance of performance and fuel economy

Performance Specifications

Explore the performance metrics and capabilities of the 6T45 transmission. This section provides detailed data on speed, torque, and efficiency.

Speed and Torque
  • Maximum engine torque: 266 lb-ft
  • Gear ratios optimized for performance and efficiency
  • Smooth acceleration across all gears
  • Quick and precise gear shifts
  • Designed for high-speed stability
  • Capable of handling frequent stop-and-go driving
Efficiency
  • Improved fuel economy through reduced internal friction
  • Optimized gear ratios for highway and city driving
  • Efficient thermal management system
  • Low parasitic losses
  • Enhanced lubrication system for longevity
  • Designed to meet stringent emissions standards

Maintenance and Care

Learn about the recommended maintenance practices to keep your 6T45 transmission in optimal condition. This section includes service intervals and best practices.

Routine Maintenance
  • Regular fluid checks and changes
  • Inspect for leaks and wear
  • Replace transmission fluid every 45,000 miles
  • Check and adjust shift linkage as needed
  • Monitor for unusual noises or vibrations
  • Use only manufacturer-recommended fluids
Troubleshooting Tips
  • Address delayed shifts promptly
  • Check for error codes using diagnostic tools
  • Inspect solenoids and sensors for faults
  • Ensure proper fluid levels and quality
  • Look for signs of overheating
  • Consult a professional for persistent issues

Transmission Specifications

Overview

Type
6-speed automatic
Configuration
Transverse
Platform
GM FWD/AWD
Material
Aluminum casing
Location
Front-wheel drive

Dimensions

Length
22.5 in (571.5 mm)
Width
16.3 in (414 mm)
Height
12.8 in (325 mm)
Weight
187 lbs (84.8 kg)
input Shaft Length
7.2 in (183 mm)
Output Shaft Length
8.9 in (226 mm)
Fluid Capacity
7.4 quarts (7.0 liters)

Materials

Casing
Aluminum alloy
Gears
Hardened steel
Clutch Packs
Composite friction materials
Seals
Viton rubber
Cooling Lines
Steel with rubber hoses

Features

Performance
  • Adaptive shift control
  • Grade braking system
  • Sport mode
  • Manual shift mode
Efficiency
  • Reduced internal friction
  • Optimized gear ratios
  • Advanced thermal management
  • Low viscosity fluid
Technology
  • Electronic control module
  • Hydraulic actuation system
  • Active torque management
  • Integrated temperature sensors

Safety Features

Protection Systems
  • Overheat protection
  • Overpressure relief
  • Torque limitation
Monitoring
  • Fluid level sensor
  • Temperature monitoring
  • Shift quality diagnostics

Comfort Features

Shift Quality
  • Smooth shift programming
  • Adaptive learning
  • Low vibration design
Noise Reduction
  • Precision gear machining
  • Acoustic dampening
  • Vibration isolation mounts

Accessories

Cooling
  • Transmission cooler lines
  • Auxiliary cooler
  • Thermostatic control
  • Fluid temperature sensor
Electrical
  • Transmission control module
  • Wiring harness
  • Shift position sensor
Mounting
  • Transmission mount
  • Crossmember
  • Bracket kit

Maintenance

Service interval
Every 45,000 miles
Service Items
  • Fluid and filter change
  • Pan gasket replacement
  • Seal inspection
  • Shift quality check
  • Mount inspection
Notes
Use only Dexron VI transmission fluid

Warranty

Basic
Years: 3
Miles: 36000
Coverage: Defects in materials or workmanship
Powertrain
Years: 5
Miles: 60000
Coverage: Transmission components
Corrosion
Years: 6
Miles: 100000
Coverage: External transmission components
Emissions
Years: 2
Miles: 24000
Coverage: Transmission control systems

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Precision casting
  • CNC machining
  • Automated assembly
  • Quality testing
Quality Control
Pressure Test: All units tested
Shift Quality: Dynamic testing
Leak Check: 100% inspection
Sustainability
  • Recycled aluminum usage
  • Energy efficient manufacturing
  • Waste reduction programs
Production Metrics
Units Per Day: 1200
Defect Rate: 0.2%
Production Years: 2010-present

Service Information for 6t45 transmission Service

Maintenance and service requirements specific to 6t45 transmission

15000
12
  • Fluid level check
  • Mount inspection
  • Seal inspection
  • Shift quality assessment

Perform visual inspection for leaks

45000
36
  • Fluid and filter change
  • Pan gasket replacement
  • Electrical connector check
  • Shift solenoid test

Use only Dexron VI transmission fluid

90000
72
  • Complete system flush
  • Clutch pack inspection
  • Torque converter check
  • Control module diagnostics

May require specialized diagnostic tools

Common Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the 6T45 transmission in the 2016-2019 Buick Cascada?

The 6T45 transmission is a 6-speed automatic transmission designed for front-wheel-drive vehicles. It features a compact design with a torque capacity of up to 184 lb-ft. Compatible with the 1.6L and 2.0L turbocharged engines in the Buick Cascada, it offers smooth shifting and improved fuel efficiency. The transmission includes adaptive shift controls and a hydraulic torque converter for optimal performance.

Q2

What are the maintenance requirements for the 6T45 transmission?

Regular maintenance is crucial for the longevity of the 6T45 transmission. Schedule transmission fluid changes every 30,000 to 60,000 miles using GM-approved Dexron VI fluid. Inspect the transmission pan gasket and cooler lines for leaks annually. Replace the transmission filter every 30,000 miles and check the fluid level monthly. Avoid extreme temperatures and towing without proper cooling.

Q3

How do I install or replace the 6T45 transmission?

Replacing the 6T45 transmission requires specialized tools and mechanical expertise. Drain the transmission fluid and disconnect the battery. Remove the transmission pan, cooler lines, and electrical connectors. Support the transmission with a jack and remove the crossmember. Install the new transmission, ensuring proper alignment and torque specifications. Refill with Dexron VI fluid and test the system for leaks or issues. Use genuine GM parts and follow the service manual.

Q4

How do I troubleshoot common issues with the 6T45 transmission?

Common issues include slipping gears, delayed engagement, or the transmission warning light. Check the transmission fluid level and condition. Inspect for leaks or damaged cooler lines. Scan for fault codes using an OBD-II scanner and address any solenoid or sensor malfunctions. If issues persist, consult a certified technician. Regular fluid changes and filter replacements can prevent many problems.

Q5

How can I optimize the performance of the 6T45 transmission?

Optimize performance by maintaining proper fluid levels and using Dexron VI. Avoid aggressive driving and extreme temperatures. Regularly clean the transmission cooler and ensure proper ground connections. Use the correct transmission mounts and avoid aftermarket modifications without consulting a specialist. Update the transmission software if necessary and refer to GM service bulletins for improvements.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2016-2019 Buick Cascada Service Manual

Coming Soon

Comprehensive guide covering maintenance, diagnostics, and repair procedures for the 6T45 transmission.

Technical Service Bulletin (TSB) – 6T45 Transmission Update

Coming Soon

Addresses common issues and provides updated procedures for transmission performance improvement.

Genuine GM Parts Catalog – 6T45 Transmission

Coming Soon

Detailed catalog of genuine parts and accessories for the 6T45 transmission.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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