Buick LaCrosse 2010-2016 6T75 Transmission Specifications
This comprehensive guide details the technical specifications of the 6T75 transmission used in the 2010-2016 Buick LaCrosse. The 6T75 is a six-speed automatic transmission designed for front-wheel-drive vehicles, offering a balance of performance, efficiency, and durability. This document covers key aspects such as gear ratios, fluid capacity, torque handling, and maintenance intervals. It also includes information on common issues, diagnostic codes, and recommended service procedures. Whether you're a mechanic, enthusiast, or owner, this guide provides valuable insights into maintaining, diagnosing, and optimizing your Buick LaCrosse's transmission. With detailed specifications and expert advice, this resource is essential for anyone looking to understand or service the 6T75 transmission.
Overview Specifications
This document provides detailed specifications and technical information about the 6T75 transmission used in the 2010-2016 Buick LaCrosse. It is designed to assist automotive professionals, mechanics, and enthusiasts in understanding the transmission's features, maintenance requirements, and performance characteristics. The content is organized into major sections for easy navigation, and includes a quick reference section for key specifications.
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Key Specifications
Number of Gears
6
Transmission Type
Automatic
Maximum Torque Capacity
300 lb-ft
Weight
187 lbs
Fluid Capacity
7.4 quarts
Available Specifications
Transmission Design
This section covers the fundamental design aspects of the 6T75 transmission, including its architecture, components, and manufacturing details. Learn about the transmission's construction and how it integrates with the Buick LaCrosse's powertrain.
Transmission Design
This section covers the fundamental design aspects of the 6T75 transmission, including its architecture, components, and manufacturing details. Learn about the transmission's construction and how it integrates with the Buick LaCrosse's powertrain.
Architecture
- 6-speed automatic transmission
- Longitudinal mounting configuration
- Electronically controlled with adaptive shift technology
- Compact design for improved packaging
Key Components
- Torque converter with lock-up clutch
- Planetary gear sets
- Hydraulic control module
- Integrated transmission control module (TCM)
Performance Characteristics
Explore the performance attributes of the 6T75 transmission, including its shift quality, efficiency, and compatibility with different engine configurations. This section provides insights into how the transmission enhances the driving experience.
Performance Characteristics
Explore the performance attributes of the 6T75 transmission, including its shift quality, efficiency, and compatibility with different engine configurations. This section provides insights into how the transmission enhances the driving experience.
Shift Quality
- Smooth and precise shift transitions
- Adaptive shift strategy for varying driving conditions
- Reduced shift shock and noise
- Quick response to throttle inputs
Efficiency
- Optimized gear ratios for fuel economy
- Reduced internal friction for improved efficiency
- Lightweight materials to reduce overall weight
- Enhanced thermal management
Maintenance and Service
This section provides essential information on maintaining and servicing the 6T75 transmission. It includes recommended service intervals, common issues, and troubleshooting tips to ensure long-term reliability.
Maintenance and Service
This section provides essential information on maintaining and servicing the 6T75 transmission. It includes recommended service intervals, common issues, and troubleshooting tips to ensure long-term reliability.
Service Intervals
- Transmission fluid change every 50,000 miles
- Inspect for leaks and wear every 15,000 miles
- Replace transmission filter with fluid change
- Check and adjust transmission mounts as needed
Common Issues
- Delayed or harsh shifting
- Transmission fluid leaks
- Solenoid valve failures
- Torque converter clutch issues
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Transmission Specifications
Overview
- Type
- Automatic
- Configuration
- 6-speed
- Platform
- GM FWD/AWD
- Material
- Aluminum casing
- Location
- Transverse-mounted
Dimensions
- Length
- 23.6 in (599 mm)
- Width
- 15.7 in (399 mm)
- Height
- 12.2 in (310 mm)
- Weight
- 172 lbs (78 kg)
- input Shaft Diameter
- 1.2 in (30.5 mm)
- Output Shaft Diameter
- 1.1 in (28 mm)
- Fluid Capacity
- 9.8 quarts (9.3 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Nitrile rubber
Features
- Performance
-
- Adaptive shift control
- Torque converter lockup
- Sport mode
- Efficiency
-
- Low-friction bearings
- Optimized gear ratios
- Reduced internal drag
- Durability
-
- Hardened steel gears
- Robust clutch packs
- Sealed electronic controls
- Technology
-
- Electronic controls
- Self-diagnostic system
- Adaptive learning
Safety Features
- Protection
-
- Overheat protection
- Overload protection
- Monitoring
-
- Fluid level sensor
- Temperature sensor
Comfort Features
- Smoothness
-
- Seamless shift transitions
- Noise-reducing gears
- Convenience
-
- Auto-manual shift mode
- Tow/haul mode
Accessories
- Optional
-
- Transmission cooler
- Performance shift kit
- Upgraded fluid
- Maintenance
-
- Fluid pump
- Filter kit
- Seal kit
Maintenance
- Service interval
- Every 45,000 miles or 48 months
- Service Items
-
- Fluid and filter change
- Seal inspection
- Clutch pack check
- Electronic control diagnostics
- Maintenance Notes
- Use only Dexron VI transmission fluid
Warranty
- Bumper To Bumper
- Miles: 36,000Years: 3Coverage: Full coverage
- Powertrain
- Miles: 60,000Years: 5Coverage: Major components
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Warranty Terms
- Subject to normal wear and tear exclusions
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Quality testing
- Quality Control
- inspection: 100% electronic testingTolerance: ±0.001 in (0.025 mm)
- Sustainability Practices
-
- Recycled aluminum usage
- Low-emission manufacturing
- Production Metrics
- Units Per Day: 1,200Defect Rate: 0.05%
Service Information for 6t75 transmission Service
Maintenance and service requirements specific to this component
- Fluid and filter replacement
- Seal inspection
- Clutch pack check
- Electronic control diagnostics
Use only Dexron VI transmission fluid
- Transmission flush
- Clutch pack inspection
- Solenoid test
- Torque converter check
Special tools required for solenoid testing
- Complete overhaul
- Clutch pack replacement
- Seal replacement
- Performance testing
Critical to replace all wear components during overhaul
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6T75 transmission in the 2010-2016 Buick LaCrosse?
What are the technical specifications of the 6T75 transmission in the 2010-2016 Buick LaCrosse?
The 6T75 transmission is a 6-speed automatic transmission designed for front-wheel drive and all-wheel drive configurations. It features a torque converter, planetary gear sets, and clutch-to-clutch shifting. Compatibility includes the 2.4L Ecotec I4, 3.0L V6, and 3.6L V6 engines. It has a maximum torque capacity of up to 280 lb-ft and is equipped with advanced features like Driver Shift Control and adaptive shift logic.
Q2 What are the maintenance requirements for the 6T75 transmission?
What are the maintenance requirements for the 6T75 transmission?
Regular maintenance for the 6T75 transmission includes fluid changes every 30,000 to 60,000 miles, depending on driving conditions. Use GM-approved Dexron VI ATF. Inspect the transmission pan gasket and cooler lines annually. Replace the transmission filter every 30,000 miles. Refer to the owner's manual for specific recommendations.
Q3 How do I install or replace the 6T75 transmission?
How do I install or replace the 6T75 transmission?
Replacing the 6T75 transmission requires a lift, transmission jack, and specialized tools. Drain the fluid, disconnect the battery, and remove the driveshaft. Carefully lower the transmission, then disconnect the cooler lines, wiring harness, and mounts. Install the new transmission, ensuring proper torque specs for all bolts. Refill with Dexron VI ATF and bleed the system to remove air bubbles.
Q4 How do I troubleshoot common issues with the 6T75 transmission?
How do I troubleshoot common issues with the 6T75 transmission?
Common issues include slipping, hesitation, or erratic shifting. Check the transmission fluid level and condition. Use a scan tool to retrieve any trouble codes. Inspect for leaks, damaged cooler lines, or faulty solenoids. Perform a transmission fluid flush and filter replacement if necessary. If internal damage is suspected, a rebuild or replacement may be required.
Q5 How can I optimize the performance of the 6T75 transmission?
How can I optimize the performance of the 6T75 transmission?
Optimize performance by maintaining proper fluid levels and using Dexron VI ATF. Avoid excessive towing or hauling beyond the vehicle's capacity. Use the manual shift mode (Driver Shift Control) for better control in hilly or performance driving conditions. Consider upgrading to a high-performance transmission cooler for improved durability under heavy use.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2010-2016 Buick LaCrosse Service Manual
Coming SoonComprehensive service manual covering diagnostics, repair procedures, and technical specifications for the 6T75 transmission.
6T75 Transmission Technical Service Bulletin
Coming SoonOfficial GM technical bulletin addressing common issues, updates, and repair procedures for the 6T75 transmission.
6T75 Transmission Parts Catalog
Coming SoonDetailed catalog of genuine GM parts and accessories for the 6T75 transmission, including filters, gaskets, and seals.
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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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