Buick Verano 2012-2017 6T40 Transmission Specifications
This document provides detailed technical specifications for the 6T40 transmission used in the 2012-2017 Buick Verano. It includes information on gear ratios, torque capacity, fluid requirements, and maintenance intervals. The specifications are essential for understanding the transmission's performance, ensuring proper maintenance, and diagnosing issues. This resource is valuable for automotive technicians, enthusiasts, and owners looking to optimize their vehicle's performance or perform repairs. The data is sourced from official service manuals and technical bulletins, ensuring accuracy and reliability.
Overview Specifications
This document provides detailed specifications and technical information about the 6T40 transmission used in the 2012-2017 Buick Verano. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance characteristics. Use this guide to navigate through sections, search for specific details, and access quick-reference specifications for efficient troubleshooting and servicing.
How to Use
Use the search functionality to locate specific terms or phrases within the document. Enter keywords related to the 6T40 transmission, such as 'gear ratios' or 'fluid capacity,' to quickly find relevant information.
Navigate through the document using the table of contents or section headings. Each major section is organized into subsections, allowing you to easily find detailed technical points and specifications.
Key Specifications
Transmission Type
6-speed automatic
Torque Capacity
250 lb-ft (339 Nm)
Fluid Capacity
7.4 quarts (7.0 liters)
Weight
187 lbs (85 kg)
Gear Ratios
4.58:1 to 0.75:1
Available Specifications
General Specifications
This section covers the basic specifications and design features of the 6T40 transmission, including its configuration, weight, and compatibility with the Buick Verano. It also provides an overview of its intended use and performance capabilities.
General Specifications
This section covers the basic specifications and design features of the 6T40 transmission, including its configuration, weight, and compatibility with the Buick Verano. It also provides an overview of its intended use and performance capabilities.
Transmission Configuration
- 6-speed automatic transmission
- Front-wheel drive configuration
- Hydraulic control system with electronic shift control
- Compact and lightweight design for improved fuel efficiency
- Compatible with 2.0L and 2.4L engines in the Buick Verano
- Manufactured by General Motors
Weight and Dimensions
- Approximate weight: 187 lbs (85 kg)
- Length: 22.5 inches (571 mm)
- Width: 15.7 inches (400 mm)
- Height: 13.8 inches (350 mm)
- Designed for compact vehicle platforms
- Optimized for space efficiency
Performance and Gear Ratios
This section details the performance characteristics of the 6T40 transmission, including gear ratios, shift patterns, and torque capacity. It also explains how these features contribute to the Buick Verano's driving dynamics.
Performance and Gear Ratios
This section details the performance characteristics of the 6T40 transmission, including gear ratios, shift patterns, and torque capacity. It also explains how these features contribute to the Buick Verano's driving dynamics.
Gear Ratios
- 1st gear: 4.58:1
- 2nd gear: 2.96:1
- 3rd gear: 1.91:1
- 4th gear: 1.45:1
- 5th gear: 1.00:1
- 6th gear: 0.75:1
Torque Capacity
- Maximum torque capacity: 250 lb-ft (339 Nm)
- Designed for smooth and efficient power delivery
- Supports both city and highway driving conditions
- Enhanced durability for long-term reliability
- Optimized for fuel economy and performance
Maintenance and Fluid Requirements
This section provides essential information on maintaining the 6T40 transmission, including fluid specifications, service intervals, and common maintenance tasks. Proper care ensures optimal performance and longevity.
Maintenance and Fluid Requirements
This section provides essential information on maintaining the 6T40 transmission, including fluid specifications, service intervals, and common maintenance tasks. Proper care ensures optimal performance and longevity.
Transmission Fluid
- Recommended fluid: Dexron VI automatic transmission fluid
- Fluid capacity: 7.4 quarts (7.0 liters)
- Fluid change interval: Every 45,000-50,000 miles
- Use only GM-approved fluids for best performance
- Check fluid level regularly for proper operation
Service and Maintenance
- Inspect transmission for leaks during routine service
- Replace transmission filter during fluid changes
- Monitor for unusual noises or shifting issues
- Reset transmission adaptive learning after service
- Follow manufacturer-recommended service intervals
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
Overview
- Type
- 6-speed automatic
- Configuration
- Front-wheel drive
- Platform
- GM Gamma II platform
- Material
- Aluminum casing with steel internals
- Location
- Mounted longitudinally in the engine bay
Dimensions
- Length
- 22.5 inches (571.5 mm)
- Width
- 15.7 inches (398.8 mm)
- Height
- 13.2 inches (335.3 mm)
- Weight
- 187 lbs (84.8 kg)
- input Shaft Diameter
- 1.2 inches (30.5 mm)
- Output Shaft Diameter
- 1.1 inches (27.9 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
- Sensors
- Stainless steel and plastic composites
Features
- Shift Technology
-
- Adaptive shift control
- Tap-up/tap-down shifting
- Manual mode with steering wheel controls
- Efficiency
-
- Low-viscosity transmission fluid
- Optimized gear ratios
- Reduced internal friction
- Performance
-
- Wide gear ratio spread
- Quick shift response
- Smooth torque delivery
- Durability
-
- Reinforced clutch plates
- High-strength gear materials
- Advanced cooling system
- integration
-
- Compatible with GM's electronic control modules
- Seamless integration with engine management systems
- Supports start-stop technology
Safety Features
- Fail Safe Modes
-
- Limp-home mode
- Overheat protection
- Sensor Monitoring
-
- Transmission fluid temperature sensor
- Input/output speed sensors
- Pressure sensors
- Electronic Controls
-
- Torque management system
- Shift lock control
Comfort Features
- Noise Reduction
-
- Precision-machined gears
- Dampened clutch engagement
- Smoothness
-
- Adaptive shift algorithms
- Hydraulic pulse dampening
- Drivability
-
- Sport mode for aggressive driving
- Eco mode for fuel efficiency
- User Experience
-
- Intuitive shift logic
- Seamless gear transitions
Accessories
- Fluids
-
- Dexron VI transmission fluid
- High-performance synthetic fluid
- Tools
-
- Transmission fluid pump
- Diagnostic scan tool
- Upgrades
-
- Performance shift kits
- Enhanced cooling systems
Maintenance
- Service interval
- Every 45,000 miles or 48 months
- Service Items
-
- Transmission fluid and filter replacement
- Inspect for leaks
- Check fluid level and condition
- Inspect transmission mounts
- Test electronic controls
- Maintenance Notes
- Use only recommended fluids and follow torque specifications during service.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain components
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation from corrosion
- Emissions
- Miles: 80,000Years: 8Coverage: Emission control systems
- Warranty Terms
- Warranty is void if improper maintenance or aftermarket modifications are performed.
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly lines
- Laser alignment
- Quality Control
- Testing: Durability testing under extreme conditions, Shift pattern validation, Fluid flow analysisinspection: Dimensional accuracy checks, Material hardness testing, Leak testing
- Sustainability Practices
-
- Recycled aluminum usage
- Low-emission manufacturing
- Waste reduction initiatives
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.02%Lead Time: 4 weeks
Service Information for 6t40 transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid and filter
- Inspect for leaks and damage
- Check fluid level and condition
- Test electronic control systems
- Inspect transmission mounts
Use only Dexron VI or equivalent transmission fluid.
- Perform full transmission flush
- Inspect and replace worn clutch packs
- Check and adjust shift linkage
- Test pressure sensors and solenoids
- Inspect cooling system
Special tools required for solenoid testing.
- Overhaul transmission internals
- Replace all seals and gaskets
- Inspect and replace torque converter if necessary
- Perform full system diagnostics
- Test and recalibrate shift points
Major service requires specialized equipment and expertise.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6T40 transmission in the 2012-2017 Buick Verano?
What are the technical specifications of the 6T40 transmission in the 2012-2017 Buick Verano?
The 6T40 transmission is a 6-speed automatic gearbox designed for front-wheel-drive vehicles. It features a compact, lightweight design with a torque capacity of up to 200 lb-ft. Compatibility includes the 2.4L Ecotec engine and select turbocharged variants. It incorporates electronic controls for smooth shifting and fuel efficiency. The transmission is equipped with a lock-up torque converter and features adaptive shift logic to optimize performance and economy.
Q2 What are the maintenance requirements for the 6T40 transmission?
What are the maintenance requirements for the 6T40 transmission?
Regular maintenance for the 6T40 transmission includes fluid checks every 15,000 miles and a full fluid change every 30,000 miles. Use Dexron VI ATF for optimal performance. Inspect the transmission pan gasket and cooler lines annually. Replace the transmission filter every 30,000 miles. Avoid extreme driving conditions without proper cooling. Follow the manufacturer's recommended schedule for best performance and longevity.
Q3 How do I replace the 6T40 transmission fluid?
How do I replace the 6T40 transmission fluid?
Jack the vehicle and locate the transmission pan. Remove the bolts and drain the fluid into a pan. Replace the filter and gasket. Tighten the pan bolts in a star pattern. Refill with Dexron VI ATF through the dipstick tube. Start the engine and cycle through gears to circulate the fluid. Check for leaks and dispose of used fluid responsibly. Consult a service manual for precise instructions.
Q4 How do I troubleshoot common 6T40 transmission issues?
How do I troubleshoot common 6T40 transmission issues?
Common issues include slipping or hesitation. Check the transmission fluid level and condition. Inspect the cooler lines for leaks or damage. Scan for trouble codes using an OBD-II scanner. Address any solenoid or sensor faults promptly. Low fluid pressure or worn clutch packs may require professional repair. Slipping between gears can indicate worn components or incorrect fluid levels.
Q5 How can I optimize the performance of the 6T40 transmission?
How can I optimize the performance of the 6T40 transmission?
Optimize performance by maintaining proper fluid levels and using Dexron VI ATF. Avoid aggressive acceleration and high RPM shifts. Install a transmission cooler for heavy-duty use. Use a performance-tuned TCM calibration for improved shift logic. Regular maintenance and inspections will ensure optimal operation. Consider upgrading to a heavy-duty torque converter for enhanced towing or performance driving.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2012-2017 Buick Verano Service Manual
Coming SoonComprehensive guide covering transmission maintenance, repair, and troubleshooting procedures.
Technical Service Bulletin - 6T40 Transmission Update
Coming SoonDetails updates and improvements for the 6T40 transmission, including software updates and component upgrades.
6T40 Transmission Parts Catalog
Coming SoonListing of genuine GM parts and accessories for the 6T40 transmission, including filters, gaskets, and seals.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
Intellectual Property
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.