Cadillac CTS 2008-2013 6L90 Transmission Specifications
This document provides detailed technical specifications for the 6L90 transmission used in the 2008-2013 Cadillac CTS. It includes gear ratios, torque capacity, fluid requirements, and maintenance intervals. These specifications are essential for understanding the transmission's performance, ensuring proper maintenance, and diagnosing issues. Whether you're a technician, enthusiast, or owner, this information is invaluable for optimizing the transmission's lifespan and performance. The 6L90 is known for its durability and smooth shifting, making it a critical component of the Cadillac CTS driving experience.
Overview Specifications
This document provides detailed specifications and technical information about the 6L90 transmission used in the 2008-2013 Cadillac CTS. It is designed to assist technicians, enthusiasts, and owners in understanding the transmission's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly locate specific details or browse through the sections for comprehensive insights.
How to Use
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Key Specifications
Transmission Type
6-speed automatic
Torque Capacity
664 lb-ft (900 Nm)
Fluid Capacity
12.5 quarts (11.8 liters)
Weight
220 lbs (100 kg)
Gear Ratios
4.03:1 to 0.67:1
Available Specifications
Performance Specifications
This section covers the performance-related aspects of the 6L90 transmission, including gear ratios, torque capacity, and shift characteristics. It provides insights into how the transmission enhances the driving experience of the Cadillac CTS.
Performance Specifications
This section covers the performance-related aspects of the 6L90 transmission, including gear ratios, torque capacity, and shift characteristics. It provides insights into how the transmission enhances the driving experience of the Cadillac CTS.
Gear Ratios
- 1st Gear: 4.03:1
- 2nd Gear: 2.36:1
- 3rd Gear: 1.53:1
- 4th Gear: 1.15:1
- 5th Gear: 0.85:1
- 6th Gear: 0.67:1
Torque Capacity
- Maximum Torque: 664 lb-ft (900 Nm)
- Designed for high-performance applications
- Supports V8 and V6 engine configurations
- Optimized for smooth power delivery
Design and Construction
Explore the engineering and design features of the 6L90 transmission, including its materials, layout, and advanced technologies. This section highlights the transmission's durability and efficiency.
Design and Construction
Explore the engineering and design features of the 6L90 transmission, including its materials, layout, and advanced technologies. This section highlights the transmission's durability and efficiency.
Materials and Build
- Aluminum alloy casing for reduced weight
- High-strength steel gears
- Advanced friction materials for clutch packs
- Sealed design for improved reliability
Advanced Features
- Electronically controlled shift system
- Adaptive shift algorithms
- Integrated torque converter
- Thermal management system
Maintenance and Service
This section provides essential information on maintaining and servicing the 6L90 transmission. It includes fluid specifications, service intervals, and troubleshooting tips.
Maintenance and Service
This section provides essential information on maintaining and servicing the 6L90 transmission. It includes fluid specifications, service intervals, and troubleshooting tips.
Fluid Requirements
- Recommended Fluid: Dexron VI ATF
- Fluid Capacity: 12.5 quarts (11.8 liters)
- Fluid change interval: 50,000 miles (80,000 km)
- Use of synthetic fluid for extended life
Service Tips
- Regularly check for fluid leaks
- Monitor transmission temperature
- Inspect shift solenoids and sensors
- Perform software updates as needed
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Transmission Specifications
Overview
- Type
- 6-speed automatic
- Configuration
- Longitudinal
- Platform
- GM RWD/AWD
- Material
- Aluminum casing with steel internals
- Location
- Rear-wheel drive configuration
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 18.9 inches (480 mm)
- Height
- 14.2 inches (361 mm)
- Weight
- 214 lbs (97 kg)
- input Shaft Length
- 12.3 inches (312 mm)
- Output Shaft Length
- 10.7 inches (272 mm)
- Fluid Capacity
- 11.2 quarts (10.6 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
- Solenoids
- Stainless steel and brass
Features
- Performance
-
- Wide gear ratio spread (6.04:1)
- Adaptive shift control
- Tow/Haul mode
- Performance algorithm shifting
- Durability
-
- Heavy-duty clutch plates
- High-strength gear sets
- Reinforced input shaft
- Efficiency
-
- Low spin losses
- Optimized fluid flow
- Thermal management system
- Control
-
- Electronic precision shift
- Integrated TCM (Transmission Control Module)
- Tap up/tap down shifting
- integration
-
- Compatible with GM's StabiliTrak system
- Integrated torque converter clutch
- CAN bus communication
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Pressure monitoring
- Protection
-
- Anti-drainback valve
- Overfill prevention
- Debris filtration
Comfort Features
- Shift Quality
-
- Smooth shift transitions
- Adaptive shift scheduling
- Reduced noise and vibration
- Drivability
-
- Seamless downshifts
- Optimized gear selection
- Enhanced low-speed performance
- Climate Adaptation
-
- Cold-start optimization
- Hot-weather protection
- Altitude compensation
Accessories
- Cooling
-
- Transmission cooler lines
- Auxiliary cooler kit
- Thermostatic bypass valve
- Mounting
-
- Transmission crossmember
- Mounting brackets
- Torque converter bolts
- Electronics
-
- TCM harness
- Speed sensors
- Shift solenoids
Maintenance
- Service interval
- Every 50,000 miles or 48 months
- Service Items
-
- Fluid and filter replacement
- Pan gasket inspection
- Solenoid testing
- Shift linkage adjustment
- Torque converter inspection
- Notes
- Use only Dexron VI transmission fluid
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 100,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: UnlimitedYears: 6Coverage: Perforation from rust
- Emissions
- Miles: 80,000Years: 8Coverage: Emission control components
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality Control
- Testing: Durability testing, Thermal cycling, Shift quality analysisStandards: ISO 9001, GM Global Quality Standards
- Sustainability
-
- Recycled aluminum usage
- Low-emission manufacturing
- Waste reduction programs
- Production Metrics
- Units Per Year: Approximately 500,000Defect Rate: Less than 0.1%Lead Time: 4 weeks
Service Information for 6l90 transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid and filter
- Inspect pan gasket for leaks
- Check solenoid operation
- Test shift linkage
- Inspect torque converter
Use only Dexron VI transmission fluid
- Perform full transmission flush
- Replace shift solenoids
- Inspect and replace worn clutch packs
- Check and adjust line pressure
- Test TCM functionality
Requires specialized diagnostic tools
- Complete transmission overhaul
- Replace torque converter
- Inspect and replace input/output shafts
- Rebuild valve body
- Perform final calibration
Recommended to be performed by certified technicians
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6L90 transmission in the 2008-2013 Cadillac CTS?
What are the technical specifications of the 6L90 transmission in the 2008-2013 Cadillac CTS?
The 6L90 transmission is a 6-speed automatic transmission designed for rear-wheel and all-wheel-drive configurations. It features a torque capacity of up to 440 lb-ft and is compatible with the 3.6L V6 and 6.2L V8 engines. The transmission includes advanced features such as clutch-to-clutch shifting, manual shift mode, and adaptive shift controls. It is optimized for smooth acceleration and fuel efficiency, with gear ratios specifically calibrated for the Cadillac CTS.
Q2 What maintenance is required for the 6L90 transmission in the 2008-2013 Cadillac CTS?
What maintenance is required for the 6L90 transmission in the 2008-2013 Cadillac CTS?
Regular maintenance for the 6L90 transmission includes fluid changes every 30,000 to 60,000 miles using Dexron VI ATF. The transmission filter should be replaced every 30,000 miles. It is also recommended to inspect the transmission pan gasket and cooler lines for leaks annually. Proper maintenance ensures optimal performance and longevity of the transmission.
Q3 How do I install or replace the 6L90 transmission in the 2008-2013 Cadillac CTS?
How do I install or replace the 6L90 transmission in the 2008-2013 Cadillac CTS?
Installation or replacement of the 6L90 transmission requires specialized tools and expertise. Start by draining the transmission fluid and disconnecting the electrical connectors. Remove the transmission pan and mounting brackets, then lift the transmission out using a transmission jack. Install the new transmission by reversing the steps, ensuring proper alignment and torque specifications. Refill with Dexron VI ATF and test the system for leaks and proper function.
Q4 How do I troubleshoot common issues with the 6L90 transmission in the 2008-2013 Cadillac CTS?
How do I troubleshoot common issues with the 6L90 transmission in the 2008-2013 Cadillac CTS?
Common issues with the 6L90 transmission include slipping gears, erratic shifting, or the transmission not engaging properly. Start by checking the transmission fluid level and condition. Use a scan tool to retrieve any trouble codes from the TCM (Transmission Control Module). Inspect the solenoid pack, pressure sensors, and clutch packs for wear or damage. In some cases, resetting the TCM or updating the software may resolve the issue. If problems persist, professional diagnosis and repair are recommended.
Q5 How can I optimize the performance of the 6L90 transmission in the 2008-2013 Cadillac CTS?
How can I optimize the performance of the 6L90 transmission in the 2008-2013 Cadillac CTS?
To optimize the performance of the 6L90 transmission, ensure regular maintenance is performed, including fluid changes and filter replacements. Avoid aggressive driving and sudden acceleration, which can put excessive strain on the transmission. Use the correct Dexron VI ATF and avoid aftermarket additives unless specifically recommended. For high-performance driving, consider upgrading to a heavy-duty transmission cooler and ensuring proper cooling system function.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Cadillac CTS 6L90 Transmission Service Manual
Coming SoonComprehensive guide covering installation, maintenance, and troubleshooting procedures for the 6L90 transmission in the 2008-2013 Cadillac CTS.
Technical Service Bulletin: 6L90 Transmission Updates
Coming SoonOfficial GM technical bulletin detailing updates, repairs, and diagnostic procedures for common issues with the 6L90 transmission.
6L90 Transmission Parts and Accessories Catalog
Coming SoonCatalog of genuine GM parts and accessories for the 6L90 transmission, including filters, gaskets, and solenoid packs.
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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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