Cadillac CTS 2014-2019 6L45 Transmission Specifications
This document provides a detailed overview of the 6L45 transmission specifications for the 2014-2019 Cadillac CTS. The 6L45 is a 6-speed automatic transmission known for its smooth shifting and reliability. This guide includes critical technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. It also covers common issues, diagnostic tips, and compatibility with other Cadillac models. Whether you're a technician, enthusiast, or owner, this resource offers valuable insights into maintaining and optimizing the performance of your Cadillac CTS. The information is derived from official service manuals and real-world testing, ensuring accuracy and relevance.
Overview Specifications
This document provides detailed specifications and technical information about the 6L45 transmission used in the 2014-2019 Cadillac CTS. It is designed to help users understand the transmission's features, performance, and maintenance requirements. Whether you're a technician, engineer, or enthusiast, this guide will assist you in navigating the technical details and finding the information you need quickly and efficiently.
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Navigate through the document using the section titles and subsections. Each major section focuses on a specific aspect of the 6L45 transmission, making it easy to find detailed information on topics like performance, design, and maintenance.
Key Specifications
Transmission Type
6-speed automatic
Maximum Torque
332 lb-ft
Fluid Capacity
9.5 quarts
Gear Ratios
4.06:1 to 0.67:1
Weight
187 lbs
Available Specifications
Transmission Design
This section covers the structural and mechanical design of the 6L45 transmission. It includes details on the transmission's construction, materials, and key components.
Transmission Design
This section covers the structural and mechanical design of the 6L45 transmission. It includes details on the transmission's construction, materials, and key components.
Material and Construction
- Aluminum alloy casing for lightweight durability
- Compact design for improved space efficiency
- High-strength internal components for longevity
- Integrated cooling system for optimal temperature management
Key Components
- Six-speed planetary gearset
- Electronically controlled hydraulic system
- Torque converter with lockup clutch
- High-performance clutch plates
Performance Specifications
This section outlines the performance capabilities of the 6L45 transmission, including gear ratios, torque capacity, and shift responsiveness.
Performance Specifications
This section outlines the performance capabilities of the 6L45 transmission, including gear ratios, torque capacity, and shift responsiveness.
Gear Ratios
- First gear: 4.06:1
- Second gear: 2.37:1
- Third gear: 1.55:1
- Fourth gear: 1.16:1
- Fifth gear: 0.85:1
- Sixth gear: 0.67:1
Torque and Power Handling
- Maximum torque capacity: 332 lb-ft
- Optimized for high-performance engines
- Smooth and precise gear shifts
- Adaptive shift logic for varying driving conditions
Maintenance and Service
This section provides guidance on maintaining and servicing the 6L45 transmission to ensure long-term reliability and performance.
Maintenance and Service
This section provides guidance on maintaining and servicing the 6L45 transmission to ensure long-term reliability and performance.
Fluid Requirements
- Recommended fluid: Dexron VI ATF
- Fluid capacity: 9.5 quarts
- Regular fluid changes every 50,000 miles
- Fluid level check procedure
Common Maintenance Tasks
- Inspect and replace clutch plates as needed
- Check for leaks and seal integrity
- Monitor transmission control module for error codes
- Perform software updates as required
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Transmission Specifications
Overview
- Type
- 6-speed automatic
- Configuration
- Longitudinal
- Platform
- GM RWD/AWD
- Material
- Aluminum casing
- Location
- Rear-wheel drive configuration
Dimensions
- Length
- 27.5 inches (698.5 mm)
- Width
- 16.3 inches (414 mm)
- Height
- 13.8 inches (350.5 mm)
- Weight
- 187 lbs (84.8 kg)
- input Shaft Length
- 9.2 inches (233.7 mm)
- Output Shaft Length
- 10.6 inches (269.2 mm)
- Fluid Capacity
- 11.2 quarts (10.6 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Plates
- Composite friction material
- Seals
- Synthetic rubber
- Cooling Lines
- Steel with rubber coating
Features
- Performance
-
- Adaptive shift control
- Grade braking system
- Sport mode
- Manual shift mode
- Efficiency
-
- Low friction gears
- Optimized fluid flow
- Energy-efficient pump
- Durability
-
- Hardened steel components
- Enhanced cooling system
- Sealed bearings
- Technology
-
- Electronic precision shift
- Integrated control module
- Diagnostic capabilities
- Drivability
-
- Smooth shift transitions
- Noise reduction design
- Quick response to throttle input
Safety Features
- Protection
-
- Overheat protection
- Low fluid level warning
- Control
-
- Anti-rollback feature
- Hill start assist
- Monitoring
-
- Real-time diagnostic monitoring
- Shift quality monitoring
Comfort Features
- Noise Reduction
-
- Precision gear meshing
- Vibration dampening mounts
- Shift Quality
-
- Smooth shift patterns
- Adaptive shift logic
- Temperature Control
-
- Advanced cooling system
- Thermal management
- Driver Assistance
-
- Predictive shift logic
- Grade logic control
Accessories
- Cooling
-
- Transmission cooler
- Auxiliary cooling fan
- Thermostatic control valve
- Mounting
-
- Transmission mount kit
- Crossmember bracket
- Isolation mounts
- Electronics
-
- Control module
- Wiring harness
- Speed sensors
Maintenance
- Service interval
- Every 50,000 miles or 48 months
- Service Items
-
- Fluid and filter change
- Seal and gasket inspection
- Clutch pack inspection
- Control module diagnostics
- Cooling system check
- Maintenance Notes
- Use only Dexron VI transmission fluid. Ensure proper cooling system function to prevent overheating.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper to bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission and drivetrain
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation from corrosion
- Emissions
- Miles: 50,000Years: 4Coverage: Emission control components
- Warranty Terms
- Transferable with ownership change. Excludes normal wear and tear.
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting of aluminum casing
- Precision machining of gears
- Automated assembly
- Quality control testing
- Quality Control
- initial Testing: Bench testing of all componentsFinal Inspection: Full transmission dyno testingStandards: ISO 9001 certified
- Sustainability Practices
-
- Recycled aluminum usage
- Energy-efficient manufacturing
- Waste reduction programs
- Production Metrics
- Annual Output: 250,000 unitsDefect Rate: < 0.1%Production Time: 12 hours per unit
Service Information for 6l45 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter replacement
- Seal and gasket inspection
- Control module diagnostic check
- Cooling system inspection
- Shift quality verification
Use only Dexron VI transmission fluid. Ensure cooling system is functioning properly.
- Complete fluid flush
- Clutch pack inspection
- Transmission mount check
- Electronic system diagnostics
- Thorough cooling system service
May require specialized tools for clutch pack inspection and electronic diagnostics.
- Complete transmission overhaul
- Replace all seals and gaskets
- Inspect and replace worn gears
- Full system performance testing
- Cooling system replacement
Major service interval. Consider professional transmission rebuild or replacement.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 6L45 transmission in the 2014-2019 Cadillac CTS?
What are the technical specifications of the 6L45 transmission in the 2014-2019 Cadillac CTS?
The 6L45 is a 6-speed automatic transmission designed for longitudinal engine applications. It features a torque capacity of up to 295 lb-ft and is compatible with rear-wheel-drive and all-wheel-drive configurations. The transmission weighs approximately 186 pounds and uses Dexron VI ATF for optimal performance. It is paired with engines such as the 2.0L Turbo I4 and 3.6L V6 in the Cadillac CTS.
Q2 What maintenance is required for the 6L45 transmission in the 2014-2019 Cadillac CTS?
What maintenance is required for the 6L45 transmission in the 2014-2019 Cadillac CTS?
Regular maintenance includes checking transmission fluid levels every 15,000 miles and replacing the fluid and filter every 30,000 to 60,000 miles. Inspecting the coolant lines and transmission pan for leaks is also recommended. Additionally, scanning for TCM updates and addressing any trouble codes promptly can prevent issues. Always use Dexron VI ATF for fluid changes.
Q3 How do I install or replace the 6L45 transmission in the 2014-2019 Cadillac CTS?
How do I install or replace the 6L45 transmission in the 2014-2019 Cadillac CTS?
Installation requires lifting the vehicle, disconnecting the battery, and draining the transmission fluid. Remove the driveshaft, coolant lines, and electrical connectors. Carefully lower the transmission using a jack or transmission jack. Install the new transmission, ensuring proper alignment and torque specifications. Reconnect all components, refill with Dexron VI ATF, and perform a transmission reset using a scan tool.
Q4 How do I troubleshoot common issues with the 6L45 transmission?
How do I troubleshoot common issues with the 6L45 transmission?
Start by scanning for trouble codes using an OBD-II scanner. Common issues include slipping or hesitation, which may indicate low fluid levels, faulty solenoids, or worn clutches. Check for fluid leaks around the pan gasket or coolant lines. If experiencing harsh shifts, inspect the throttle position sensor or transmission control module for updates. Always refer to the service manual for detailed diagnostic procedures.
Q5 How can I optimize the performance of the 6L45 transmission?
How can I optimize the performance of the 6L45 transmission?
Regular fluid changes with Dexron VI ATF and maintaining proper coolant temperatures can enhance performance. Upgrading to a high-performance transmission pan or cooler may improve durability in high-stress conditions. Ensure proper wheel alignment and tire balance to reduce strain on the drivetrain. Avoid aggressive driving habits and monitor transmission temperatures during towing or spirited 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.
6L45 Transmission Service Manual
Coming SoonComprehensive guide for maintenance, repair, and troubleshooting of the 6L45 transmission.
Technical Bulletin: 6L45 Transmission Updates
Coming SoonDetails software updates and technical bulletins for improving transmission performance and reliability.
Cadillac CTS Parts Catalog
Coming SoonCatalog of genuine GM parts and accessories for the 2014-2019 Cadillac CTS, including 6L45 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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