Buick Envision 2016-2020 6T45 Transmission Specifications
This document provides detailed technical specifications for the 6T45 transmission used in the 2016-2020 Buick Envision. It includes information on gear ratios, torque capacity, fluid type, and maintenance intervals, essential for owners, technicians, and enthusiasts. The 6T45 transmission is a 6-speed automatic designed for optimal performance and fuel efficiency, making it a critical component of the Envision's drivetrain. This guide also covers common troubleshooting tips, compatibility with other models, and upgrade possibilities. Whether you're performing routine maintenance, diagnosing issues, or enhancing performance, this resource offers valuable insights to ensure the longevity and reliability of your vehicle's transmission system.
Overview Specifications
This document provides detailed technical specifications and operational information for the 6T45 transmission used in the 2016-2020 Buick Envision. It is designed to assist technicians, engineers, and enthusiasts in understanding the transmission's features, maintenance requirements, and performance characteristics. Use this guide to locate specific information quickly and efficiently.
How to Use
Use the search functionality to find specific terms or phrases within the document. Enter keywords related to the transmission system, such as 'gear ratios' or 'fluid capacity,' to locate relevant sections.
Navigate through the document by scrolling or using the table of contents. Each section is labeled clearly, and subsections provide detailed breakdowns of the 6T45 transmission's components and specifications.
Key Specifications
Transmission Type
6-speed automatic
Torque Capacity
250 lb-ft
Fluid Capacity
9.5 quarts
Gear Ratios
Optimized for efficiency
Service Interval
50,000 miles
Available Specifications
Transmission Design
This section covers the structural and functional design of the 6T45 transmission, including its modular components, layout, and engineering principles.
Transmission Design
This section covers the structural and functional design of the 6T45 transmission, including its modular components, layout, and engineering principles.
Modular Components
- 6-speed automatic transmission
- Compact and lightweight design
- Integrated torque converter
- Electronically controlled shifting
- Durable clutch plates
- Thermal management system
Engineering Features
- Optimized gear ratios for fuel efficiency
- Smooth shift quality
- Adaptive learning capabilities
- Reduced internal friction for longevity
Performance Specifications
This section outlines the key performance metrics of the 6T45 transmission, including speed, torque handling, and efficiency.
Performance Specifications
This section outlines the key performance metrics of the 6T45 transmission, including speed, torque handling, and efficiency.
Speed and Torque
- Maximum torque capacity: 250 lb-ft
- Gear ratios optimized for acceleration
- Top speed compatibility up to 120 mph
- Enhanced low-speed maneuverability
Efficiency
- Improved fuel economy
- Reduced CO2 emissions
- Efficient power transfer
- Low parasitic losses
Maintenance and Service
This section provides guidelines for maintaining and servicing the 6T45 transmission to ensure optimal performance and longevity.
Maintenance and Service
This section provides guidelines for maintaining and servicing the 6T45 transmission to ensure optimal performance and longevity.
Fluid Requirements
- Recommended fluid: Dexron VI
- Fluid capacity: 9.5 quarts
- Fluid change interval: 50,000 miles
- Proper fluid level check procedure
Service Intervals
- Inspect transmission every 30,000 miles
- Replace filter during fluid changes
- Check for leaks regularly
- Update software as needed
Search Specifications
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Transmission Specifications
Overview
- Type
- 6-speed automatic
- Configuration
- Front-wheel drive / All-wheel drive
- Platform
- GM Epsilon II
- Material
- Aluminum casing
- Location
- Transverse-mounted
Dimensions
- Length
- 24.5 inches / 622 mm
- Width
- 17.3 inches / 440 mm
- Height
- 14.2 inches / 360 mm
- Weight
- 167 lbs / 75.8 kg
- input Shaft Diameter
- 1.2 inches / 30.5 mm
- Output Shaft Diameter
- 1.1 inches / 28 mm
- Fluid Capacity
- 7.4 quarts / 7 liters
Materials
- Housing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Plates
- Carbon fiber composite
- Seals
- Nitrile rubber
Features
- Performance
-
- Adaptive shift control
- Towing capacity up to 1500 lbs
- Grade braking system
- Technology
-
- Electronic precision shift
- Hydraulic actuation system
- Integrated temperature sensor
- Efficiency
-
- Low viscosity transmission fluid
- Optimized gear ratios
- Reduced internal friction
- Durability
-
- Hardened internal components
- Enhanced cooling system
- Sealed for life design
- Drive Modes
-
- Normal
- Sport
- Manual shift mode
Safety Features
- Protection
-
- Overheat protection
- Fail-safe mode
- Monitoring
-
- Real-time fluid level monitoring
- Shift quality diagnostics
- Emergency
-
- Park lock system
- Neutral start safety
Comfort Features
- Shift Quality
-
- Smooth shift transitions
- Reduced shift shock
- Noise Reduction
-
- Insulated housing
- Precision gear meshing
- Drive Modes
-
- Adaptive shift logic for varying conditions
- Customizable shift patterns
- Response
-
- Quick shift response
- Improved throttle response
Accessories
- Fluids
-
- Dexron VI transmission fluid
- Synthetic lubricants
- Cooling
-
- Transmission cooler kit
- Auxiliary cooling fan
- Mounts
-
- Performance transmission mounts
- Vibration dampeners
Maintenance
- Service interval
- Every 45,000 miles or 48 months
- Service Items
-
- Transmission fluid change
- Filter replacement
- Seal inspection
- Shift linkage adjustment
- Sensor diagnostics
- Maintenance Notes
- Use only approved fluids and follow torque specifications for components.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper to bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission components
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality Control
- inspection: 100% component testingTesting: Dyno testing for performanceCertification: ISO 9001 compliant
- Sustainability Practices
-
- Recycled aluminum usage
- Waste reduction initiatives
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.1%Lead Time: 14 days
Service Information for 6t45 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid flush
- Filter replacement
- Seal inspection
- Shift linkage adjustment
- Sensor diagnostics
Use only Dexron VI transmission fluid for optimal performance.
- Complete fluid change
- Pan gasket replacement
- Valve body inspection
- Clutch pack inspection
- Transmission mount check
Inspect for wear and replace components as necessary.
- Full transmission overhaul
- Clutch pack replacement
- Torque converter inspection
- Shift solenoid testing
- Performance calibration
Consider professional service for major overhaul procedures.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6T45 transmission in the 2016-2020 Buick Envision?
What are the technical specifications of the 6T45 transmission in the 2016-2020 Buick Envision?
The 6T45 is a 6-speed automatic transmission with a torque capacity of up to 260 lb-ft. It's designed for front-wheel drive and features adaptive shift controls. Compatible with the 2.0L turbo and 2.5L engines, it offers smooth shifting and efficient performance across various driving conditions.
Q2 What maintenance is required for the 6T45 transmission?
What maintenance is required for the 6T45 transmission?
Regular maintenance includes fluid changes every 30,000 to 60,000 miles using GM-approved ATF. Replace the transmission filter every 30,000 miles and inspect cooler lines and connections annually. Adhering to this schedule ensures optimal performance and longevity.
Q3 How do I install or replace the 6T45 transmission?
How do I install or replace the 6T45 transmission?
Start by draining the transmission fluid and disconnecting the battery. Remove the cooler lines and electrical connectors, then support the transmission and remove the crossmember. Replace the transmission, ensuring all connections are secure. Refill fluid and test the system. Consult a professional or manual for detailed steps.
Q4 How do I troubleshoot common issues with the 6T45 transmission?
How do I troubleshoot common issues with the 6T45 transmission?
Check for error codes using an OBD-II scanner if issues like slipping or erratic shifting occur. Inspect fluid levels and condition, and check for worn solenoids or sensors. Consult a transmission specialist for repairs to prevent further damage.
Q5 How can I optimize the performance of the 6T45 transmission?
How can I optimize the performance of the 6T45 transmission?
Maintain proper tire pressure, avoid aggressive driving, and use GM-approved transmission fluid. Consider upgrading the transmission cooler for heavy-duty use. Regular software updates from Buick can enhance performance and address any issues.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
6T45 Transmission Service Manual
Coming SoonCovers diagnostics, maintenance, and repair procedures with detailed technical specifications.
6T45 Transmission Update Bulletin
Coming SoonProvides updates, improvements, and resolutions for known issues.
6T45 Transmission Parts Catalog
Coming SoonLists part numbers, diagrams, and suppliers for transmission components.
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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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