GMC Canyon 2015-present 8L45 Transmission Transmission Specifications
GMC Canyon 2015-present

GMC Canyon 2015-present 8L45 Transmission Specifications

This document provides a detailed overview of the 8L45 transmission specifications for the 2015-Present GMC Canyon. It includes key technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. The purpose of this information is to assist owners, technicians, and enthusiasts in understanding the transmission's performance, ensuring proper maintenance, and facilitating repairs or upgrades. This comprehensive guide is valuable for anyone looking to optimize the performance and longevity of their GMC Canyon's transmission, whether for daily driving or enhanced off-road capabilities.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 8L45 transmission used in the 2015-Present GMC Canyon. It is designed to assist engineers, technicians, and enthusiasts in understanding the transmission's features, maintenance, and performance. Use the search and navigation instructions to quickly locate specific details. The document is organized into sections covering key aspects of the 8L45 transmission, including design, operation, and maintenance.

How to Use

Use the search function to quickly find specific terms or phrases related to the 8L45 transmission. Enter keywords like 'gears', 'torque', or 'fluid' to locate relevant sections.

Navigate through the document using the table of contents or by scrolling through sections. Each major section is divided into subsections for easy access to detailed information.

Key Specifications

Gear Count

8 speeds

Max Torque

700 Nm

Fluid Type

Dexron VI

Weight

98 kg

Service Interval

60,000 miles

Available Specifications

Design and Construction

This section covers the design principles and construction details of the 8L45 transmission. It includes information on materials, assembly, and key components that contribute to its durability and performance.

Material Composition
  • High-strength aluminum alloy casing
  • Precision-machined gears for reduced friction
  • Advanced polymer seals for durability
  • Thermal-resistant coatings for heat management
Key Components
  • 8-speed gearset for optimal performance
  • Hydraulic control module for smooth shifting
  • Torque converter with lock-up clutch
  • Integrated electronic control unit (ECU)

Performance and Operation

This section provides insights into the performance characteristics and operational behavior of the 8L45 transmission. It includes details on torque handling, shift patterns, and efficiency.

Torque Handling
  • Rated for up to 700 Nm of torque
  • Optimized for high-load applications
  • Enhanced torque distribution for stability
  • Low-speed torque multiplication for towing
Shift Patterns
  • Adaptive shift logic for varying conditions
  • Quick and precise gear changes
  • Sport mode for aggressive shifting
  • Manual mode for driver control

Maintenance and Service

This section outlines the recommended maintenance practices and service intervals for the 8L45 transmission. It includes tips for fluid changes, diagnostics, and troubleshooting.

Fluid Maintenance
  • Use only Dexron VI transmission fluid
  • Fluid change interval: 60,000 miles
  • Check fluid level every 15,000 miles
  • Monitor fluid color and consistency
Diagnostics and Troubleshooting
  • Use OBD-II scanner for error codes
  • Check for leaks and unusual noises
  • Inspect wiring and connectors
  • Reset transmission adaptive learning after service

Transmission Specifications

Overview

Type
8-speed automatic
Configuration
Longitudinal
Platform
GM K2XX
Material
Aluminum case
Location
Rear-wheel drive configuration

Dimensions

Length
23.5 inches (596.9 mm)
Width
17.3 inches (439.4 mm)
Height
13.2 inches (335.3 mm)
Weight
175 lbs (79.4 kg)
input Shaft Diameter
1.25 inches (31.75 mm)
Output Shaft Diameter
1.5 inches (38.1 mm)
Fluid Capacity
9.5 quarts (9 liters)

Materials

Case
Aluminum alloy
Gears
Hardened steel
Bearings
High-carbon steel
Clutch Plates
Composite friction material
Seals
Synthetic rubber

Features

Performance
  • Quick shift response
  • Adaptive shift control
  • Wide gear ratio spread
  • Optimized for fuel efficiency
Technology
  • Electronic precision shift
  • Integrated control module
  • Active thermal management
  • Driver shift control
Durability
  • Heavy-duty construction
  • Enhanced cooling system
  • Robust gear design
  • Sealed for harsh environments
Efficiency
  • Low internal friction
  • Optimized gear ratios
  • Eco mode for fuel savings
  • Lightweight components
integration
  • Compatible with GM's Terrain Mode system
  • Seamless integration with engine control
  • Supports towing capabilities
  • Adapts to driving conditions

Safety Features

Protection
  • Overheat protection
  • Fail-safe mode
Monitoring
  • Real-time diagnostics
  • Fluid level monitoring
Control
  • Shift interlock
  • Torque management

Comfort Features

Refinement
  • Smooth shifting
  • Low noise levels
Convenience
  • Automatic mode
  • Manual override
Adaptability
  • Adapts to driver behavior
  • Adjusts to terrain
User Experience
  • Intuitive controls
  • Enhanced responsiveness

Accessories

Cooling
  • Transmission cooler
  • Thermostatic control
Controls
  • Shift paddles
  • Shift knob
Maintenance
  • Fluid exchange kit
  • Filter kit
  • Seal kit

Maintenance

Service interval
Every 45,000 miles or 48 months
Service Items
  • Fluid and filter change
  • Seal inspection
  • Shift linkage adjustment
  • Diagnostic scan
  • Cooling system check
Notes
Use only Dexron VI transmission fluid

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Transmission and drivetrain
Corrosion
Miles: 100,000
Years: 6
Coverage: Perforation only
Emissions
Miles: 80,000
Years: 8
Coverage: Emission-related components

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Precision machining
  • Automated assembly
  • Quality testing
Quality Control
Testing: Durability testing, Performance testing, Leak testing
Standards: ISO 9001
inspection: 100% component inspection
Sustainability
  • Recyclable materials
  • Energy-efficient production
  • Waste reduction programs
Production Metrics
Units Per Year: 500,000
Lead Time: 6 weeks
Defect Rate: Less than 0.1%

Service Information for 8l45 transmission Service

Maintenance and service requirements specific to this component

45,000
48
  • Replace transmission fluid
  • Replace transmission filter
  • Inspect seals and gaskets
  • Check cooling system
  • Perform diagnostic scan

Use Dexron VI transmission fluid

90,000
96
  • Full fluid flush
  • Replace seals and gaskets
  • Inspect shift linkage
  • Check torque converter
  • Test transmission control module

Special tools required for fluid flush

150,000
144
  • Complete transmission overhaul
  • Replace clutch plates
  • Inspect and replace bearings
  • Test all sensors and actuators
  • Re-calibrate control module

Major service requires certified technician

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 8L45 transmission compatible with other GMC models?

The 8L45 transmission is specifically designed for the 2015-Present GMC Canyon. While it shares similarities with other GM models, compatibility is not guaranteed without modifications. Always verify part numbers and consult technical documentation for cross-model compatibility. Using this transmission in non-compatible vehicles may result in improper fitment or performance issues.

Q2

What are the maintenance requirements for the 8L45 transmission?

The 8L45 transmission requires regular maintenance to ensure optimal performance. Fluid changes are recommended every 45,000 to 60,000 miles, depending on driving conditions. Inspect for leaks, check fluid levels, and replace the filter as needed. Severe driving conditions may necessitate more frequent servicing. Always use GM-approved transmission fluid to avoid damage.

Q3

How do I replace the 8L45 transmission in my GMC Canyon?

Replacing the 8L45 transmission involves several steps: disconnect the battery, remove the driveshaft, drain the transmission fluid, detach the transmission mounts, and disconnect wiring and linkages. Carefully lower the transmission using a jack and install the new unit in reverse order. Torque all bolts to manufacturer specifications and refill with the correct fluid. Professional assistance is recommended.

Q4

What are common troubleshooting steps for the 8L45 transmission?

Common issues with the 8L45 transmission include rough shifting, slipping, or delayed engagement. Start by checking fluid levels and condition. Inspect for leaks or damaged wiring. Use a diagnostic scanner to check for error codes. If issues persist, consult a professional for further inspection, as internal components may require repair or replacement.

Q5

How can I optimize the performance of the 8L45 transmission?

To optimize the 8L45 transmission, ensure regular maintenance with GM-approved fluids. Avoid aggressive driving and excessive towing loads. Consider upgrading the transmission cooler for heavy-duty use. Keeping the transmission software updated via dealership services can also enhance performance and address known issues.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2015-Present GMC Canyon Service Manual

Coming Soon

Complete guide covering maintenance, repair, and technical specifications for the GMC Canyon, including the 8L45 transmission.

Technical Service Bulletin for 8L45 Transmission

Coming Soon

Latest updates and fixes for the 8L45 transmission, including software updates and common issues.

GMC Canyon Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM parts and accessories for the 2015-Present GMC Canyon, including 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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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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