GMC Terrain 2018-present 9T45 Transmission Specifications
This detailed metadata provides comprehensive specifications for the 9T45 transmission used in the 2018-Present GMC Terrain. The document includes essential technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. It serves as a valuable resource for automotive technicians, enthusiasts, and owners seeking to understand the transmission's performance, compatibility, and service requirements. The specifications are designed to assist in diagnosing issues, performing repairs, and ensuring optimal transmission function. Whether you're performing routine maintenance or upgrading your vehicle, this guide offers critical insights into the 9T45 transmission's design and operation, ensuring informed decision-making and efficient vehicle care.
Overview Specifications
This document provides detailed specifications and technical information about the 9T45 transmission used in the 2018-Present GMC Terrain. It is designed for technicians, engineers, and enthusiasts seeking in-depth knowledge about the transmission's design, performance, and maintenance. Use this guide to explore key features, operational details, and troubleshooting tips. The document is organized into sections for easy navigation, with a quick reference table for essential specifications.
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Key Specifications
Transmission Type
9-speed automatic
Max Torque
280 lb-ft
Max Power
300 hp
Fluid Capacity
9.5 quarts
Weight
187 lbs
Available Specifications
Transmission Design
This section covers the design and engineering of the 9T45 transmission. It includes details on its construction, components, and integration with the GMC Terrain's drivetrain. Learn about the transmission's architecture and how it enhances vehicle performance.
Transmission Design
This section covers the design and engineering of the 9T45 transmission. It includes details on its construction, components, and integration with the GMC Terrain's drivetrain. Learn about the transmission's architecture and how it enhances vehicle performance.
Architecture
- 9-speed automatic transmission
- Compact and lightweight design
- Optimized for front-wheel and all-wheel drive configurations
- Hydraulic control system for precise gear shifts
- Advanced torque converter design
- Integrated thermal management system
Components
- High-strength gear sets
- Durable clutch packs
- Electronic control module (TCM)
- High-efficiency lubrication system
- Robust housing for durability
- Sealed for protection against contaminants
Performance Features
Explore the performance characteristics of the 9T45 transmission. This section highlights its efficiency, power handling, and driving dynamics. Understand how the transmission contributes to the GMC Terrain's overall performance.
Performance Features
Explore the performance characteristics of the 9T45 transmission. This section highlights its efficiency, power handling, and driving dynamics. Understand how the transmission contributes to the GMC Terrain's overall performance.
Efficiency
- Improved fuel economy through optimized gear ratios
- Reduced internal friction for energy savings
- Adaptive shift patterns for varying driving conditions
- Start-stop functionality for reduced idle fuel consumption
- Smooth and seamless gear transitions
- Enhanced low-speed drivability
Power Handling
- Designed for engines up to 300 horsepower
- Handles torque up to 280 lb-ft
- Quick and responsive shifts under load
- Durable components for high-stress conditions
- Enhanced cooling for sustained performance
- Reliable operation in extreme temperatures
Maintenance and Troubleshooting
This section provides guidance on maintaining and troubleshooting the 9T45 transmission. Learn about recommended service intervals, common issues, and diagnostic tips to ensure long-term reliability.
Maintenance and Troubleshooting
This section provides guidance on maintaining and troubleshooting the 9T45 transmission. Learn about recommended service intervals, common issues, and diagnostic tips to ensure long-term reliability.
Service Intervals
- Fluid change every 45,000 miles
- Inspect seals and gaskets during routine service
- Check for software updates via the TCM
- Monitor transmission fluid level and condition
- Replace filters as recommended by the manufacturer
- Perform thorough inspections at 60,000-mile intervals
Common Issues
- Delayed shifting or harsh engagement
- Transmission fluid leaks
- Error codes related to the TCM
- Unusual noises during operation
- Overheating under heavy load
- Reduced fuel efficiency
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Transmission Specifications
Overview
- Type
- 9-Speed Automatic
- Configuration
- Front-Wheel Drive / All-Wheel Drive
- Platform
- GM Global Mid-Size SUV Platform
- Material
- Aluminum and Steel Alloy
- Location
- Integrated with Engine Block
Dimensions
- Length
- 24.5 in / 622 mm
- Width
- 16.8 in / 427 mm
- Height
- 14.2 in / 361 mm
- Weight
- 187 lbs / 85 kg
- input Shaft Diameter
- 1.25 in / 31.75 mm
- Output Shaft Diameter
- 1.5 in / 38.1 mm
- Fluid Capacity
- 9.5 quarts / 9 liters
Materials
- Housing
- Aluminum Die-Cast
- Gears
- High-Strength Steel Alloy
- Clutch Plates
- Carbon Composite
- Seals
- Synthetic Rubber
- Fluid
- Dexron VI Automatic Transmission Fluid
Features
- Performance
-
- Wide Gear Ratio Spread
- Adaptive Shift Control
- Sport Mode Tuning
- Tow/Haul Mode
- Efficiency
-
- Low Friction Design
- Optimized Gear Ratios
- Start/Stop Compatibility
- Reduced Parasitic Losses
- Technology
-
- Electronic Precision Shift
- Integrated Control Module
- Active Thermal Management
- Diagnostic Capabilities
- Durability
-
- Hardened Gear Components
- Advanced Cooling System
- Sealed for Life Design
- Corrosion-Resistant Coatings
- Drivability
-
- Smooth Shift Quality
- Quick Response Time
- Adaptive Learning
- Seamless Integration with Engine
Safety Features
- Protection
-
- Overheat Protection
- Fail-Safe Mode
- Low Fluid Detection
- Control
-
- Electronic Stability Integration
- Hill Start Assist
- Downhill Speed Control
Comfort Features
- Noise Reduction
-
- Isolated Mounts
- Low Noise Gears
- Sound Dampening Materials
- Smoothness
-
- Adaptive Shift Mapping
- Torque Converter Lockup
- Vibration Dampening
- Convenience
-
- Paddle Shifters
- One-Pedal Driving Mode
- Automatic Park Engagement
Accessories
- Performance Upgrades
-
- High-Performance Fluid
- Upgraded Cooling Kit
- Sport Tuning Module
- Maintenance Tools
-
- Fluid Exchange Kit
- Diagnostic Scanner
- Service Manual
- Protection
-
- Transmission Skid Plate
- Fluid Conditioner
- Seal Protector
Maintenance
- Service interval
- Every 45,000 miles / 48 months
- Service Items
-
- Fluid and Filter Replacement
- Seal Inspection
- Shift Quality Check
- Control Module Update
- Cooling System Inspection
- Mount and Linkage Check
- Maintenance Notes
- Use only Dexron VI fluid. Avoid overheating conditions.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-Bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Transmission Components
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation Only
- Emissions
- Miles: 80,000Years: 8Coverage: Federal Emission Standards
- Warranty Terms
- Transferable to subsequent owners. Excludes wear items.
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Precision Machining
- Automated Assembly
- Laser Alignment
- End-of-Line Testing
- Quality Control
- Tolerance Checks: ±0.001 inPerformance Testing: Dynamic Load SimulationFinal Inspection: 100% Tested
- Sustainability Practices
-
- Recycled Materials
- Energy-Efficient Production
- Waste Reduction Programs
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.01%Lead Time: 30 days
Service Information for 9t45 transmission Service
Maintenance and service requirements specific to this component
- Fluid and Filter Replacement
- Seal Inspection
- Shift Quality Check
- Control Module Update
- Cooling System Inspection
Ensure proper fluid type and quantity.
- Comprehensive Fluid Flush
- Mount and Linkage Check
- Internal Wear Inspection
- Thermal System Test
- Diagnostic Scan
May require specialized diagnostic tools.
- Transmission Overhaul
- Clutch Pack Replacement
- Bearing Inspection
- Gear Wear Analysis
- Performance Calibration
Critical to address any wear or damage promptly.
Common Questions
Find answers to common questions about torque specifications
Q1 What vehicles are compatible with the 9T45 transmission for the 2018-Present GMC Terrain?
What vehicles are compatible with the 9T45 transmission for the 2018-Present GMC Terrain?
The 9T45 transmission is specifically designed for the 2018-Present GMC Terrain models equipped with a 1.5L or 2.0L turbocharged engine. It is not compatible with earlier Terrain models or other vehicle lines. The transmission is optimized for front-wheel-drive (FWD) and all-wheel-drive (AWD) configurations. Always verify your vehicle's engine and drivetrain specifications before installation.
Q2 What are the maintenance requirements for the 9T45 transmission?
What are the maintenance requirements for the 9T45 transmission?
Regular maintenance for the 9T45 transmission includes checking and replacing the transmission fluid every 45,000 to 60,000 miles, depending on driving conditions. Inspect for leaks and ensure the transmission cooler is functioning properly. GMC recommends using Dexron VI transmission fluid. Additionally, monitor the transmission control module for software updates and address any warning lights promptly to avoid long-term damage.
Q3 How do I replace the 9T45 transmission in my GMC Terrain?
How do I replace the 9T45 transmission in my GMC Terrain?
To replace the 9T45 transmission, first disconnect the battery and remove the air intake system. Support the engine with a hoist and disconnect the drivetrain components. Remove the transmission mounts and disconnect the wiring harness and fluid lines. Lower the transmission carefully and install the new unit in reverse order. Ensure all connections are secure and refill with the recommended fluid. Test the system before driving.
Q4 What should I do if my 9T45 transmission is slipping or shifting hard?
What should I do if my 9T45 transmission is slipping or shifting hard?
If your 9T45 transmission is slipping or shifting hard, start by checking the transmission fluid level and condition. Low or contaminated fluid can cause these issues. Inspect for leaks and ensure the transmission control module is functioning correctly. If the problem persists, scan for diagnostic trouble codes (DTCs) and consult a professional technician for further diagnosis and repair.
Q5 How can I optimize the performance of my 9T45 transmission?
How can I optimize the performance of my 9T45 transmission?
To optimize the performance of your 9T45 transmission, ensure regular maintenance, including fluid changes and software updates. Use high-quality Dexron VI transmission fluid and avoid aggressive driving habits. Consider installing an auxiliary transmission cooler if towing or driving in extreme conditions. Regularly monitor the transmission's performance and address any issues promptly to maintain efficiency and longevity.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2018-Present GMC Terrain 9T45 Transmission Service Manual
Coming SoonDetailed service manual providing step-by-step instructions for maintenance, repair, and replacement of the 9T45 transmission.
GMC Technical Service Bulletin for 9T45 Transmission Updates
Coming SoonLatest technical service bulletin addressing software updates and common issues for the 9T45 transmission.
GMC Terrain Transmission Parts and Accessories Catalog
Coming SoonComprehensive catalog listing all compatible parts and accessories for the 9T45 transmission.
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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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