GMC Yukon 2021-present 10L80 Transmission Transmission Specifications
GMC Yukon 2021-present

GMC Yukon 2021-present 10L80 Transmission Specifications

This document provides detailed specifications for the 10L80 automatic transmission used in the 2021-Present GMC Yukon. It covers key technical details such as gear ratios, torque capacity, fluid type, and maintenance intervals. The 10L80 transmission is a 10-speed automatic designed for optimal performance, efficiency, and durability, making it a critical component for the Yukon's towing and off-road capabilities. This resource is invaluable for owners, technicians, and enthusiasts seeking to understand the transmission's design, maintenance requirements, and compatibility with aftermarket upgrades. Whether you're performing routine service, diagnosing issues, or planning modifications, this guide offers essential information to ensure the longevity and peak performance of your GMC Yukon's transmission system.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 10L80 transmission used in the 2021-Present GMC Yukon. It is designed to assist users in understanding the transmission's features, performance, and maintenance requirements. The guide is organized into sections for easy navigation and includes a quick reference table for key specifications. Use the search functionality to locate specific details or browse through the sections for comprehensive information.

How to Use

Use the search bar to enter keywords related to the 10L80 transmission. The results will highlight relevant sections and subsections for quick access.

Navigate through the document by clicking on the section titles in the table of contents. Each section contains detailed subsections with technical points for easy reference.

Key Specifications

Transmission Type

10-speed automatic

Maximum Torque Capacity

800 lb-ft

Weight

214 lbs

Gear Ratio Spread

7.39:1

Fluid Capacity

11.2 quarts

Available Specifications

Transmission Design

This section covers the design features of the 10L80 transmission, including its architecture, materials, and engineering innovations. Learn about the transmission's construction and how it enhances the performance of the GMC Yukon.

Architecture
  • 10-speed automatic transmission
  • Longitudinal mounting configuration
  • Compact and lightweight design
  • Optimized for high torque handling
  • Advanced gear ratio spread
  • Enhanced durability with high-strength materials
Materials
  • High-strength steel components
  • Aluminum alloy casing
  • Heat-resistant friction materials
  • Precision-engineered gears
  • Corrosion-resistant coatings
  • Durable seals and gaskets

Performance Features

Explore the performance capabilities of the 10L80 transmission, including its shifting dynamics, efficiency, and integration with the vehicle's powertrain system. This section highlights how the transmission contributes to the Yukon's driving experience.

Shifting Dynamics
  • Smooth and precise gear shifts
  • Adaptive shift programming
  • Quick response to driver inputs
  • Seamless downshifting for engine braking
  • Optimized for both city and highway driving
  • Enhanced performance in towing scenarios
Efficiency
  • Improved fuel economy
  • Reduced internal friction
  • Optimized gear ratios for efficiency
  • Integration with start-stop technology
  • Low fluid drag design
  • Enhanced thermal management

Maintenance and Care

This section provides essential information on maintaining the 10L80 transmission to ensure its longevity and optimal performance. Learn about recommended service intervals, fluid specifications, and common maintenance practices.

Service Intervals
  • Regular fluid and filter changes
  • Inspection every 50,000 miles
  • Fluid condition monitoring
  • Seal and gasket checks
  • Torque converter inspection
  • Software updates for transmission control
Fluid Specifications
  • Use of Dexron VI transmission fluid
  • Proper fluid level checks
  • Fluid replacement procedure
  • Avoiding fluid contamination
  • Fluid temperature monitoring
  • Compatibility with aftermarket fluids

Transmission Specifications

Overview

Type
10-speed automatic
Configuration
Longitudinal
Platform
GM Truck
Material
Aluminum alloy casing
Location
Rear-wheel drive (RWD) and all-wheel drive (AWD) configurations

Dimensions

Length
29.1 inches (739 mm)
Width
16.7 inches (424 mm)
Height
13.2 inches (335 mm)
Weight
214 lbs (97 kg)
input Shaft Diameter
1.38 inches (35 mm)
Output Shaft Diameter
1.57 inches (40 mm)
Fluid Capacity
10.9 quarts (10.3 liters)

Materials

Casing
Aluminum alloy
Gears
High-strength steel
Clutches
Carbon fiber composite
Seals
Fluorocarbon elastomer

Features

Performance
  • Wide gear ratio spread (7.39:1)
  • Adaptive shift control
  • Improved torque capacity
  • Enhanced thermal management
Efficiency
  • Reduced internal friction
  • Optimized gear ratios
  • Lightweight design
  • Efficient fluid circulation
Control
  • Electronic precision shift
  • Integrated controller
  • Dynamic skip shift
  • Grade braking
Durability
  • Robust gear design
  • Enhanced clutch materials
  • Improved heat dissipation
  • Sealed for life components

Safety Features

Fail Safe
  • Automatic limp mode
  • Overheat protection
  • Hydraulic pressure monitoring
Driver Assistance
  • Hill start assist
  • Trailer sway control
  • Downhill speed control

Comfort Features

Smoothness
  • Seamless shift transitions
  • Reduced vibration
  • Quiet operation
Convenience
  • Tow/haul mode
  • Sport mode
  • Manual shift control

Accessories

Transmission Fluids
  • Dexron VI
  • Synthetic blend
  • Full synthetic
Cooling Systems
  • Auxiliary transmission cooler
  • Integrated heat exchanger
  • External cooling fan
Tools
  • Transmission jack adapter
  • Fluid exchange pump
  • Diagnostic scan tool

Maintenance

Service interval
  • Inspect fluid level: Every 7,500 miles (12,000 km)
  • Replace fluid: Every 45,000 miles (72,000 km)
  • Check for leaks: Every 15,000 miles (24,000 km)
  • Inspect seals and gaskets: Every 30,000 miles (48,000 km)
  • Monitor shift performance: Continuously
Maintenance Notes
Use only specified transmission fluids and follow manufacturer guidelines for service intervals.

Warranty

Bumper To Bumper
Miles: 36,000
Years: 3
Coverage: Comprehensive coverage for defects
Powertrain
Miles: 60,000
Years: 5
Coverage: Covers transmission and related components
Corrosion
Miles: 100,000
Years: 6
Coverage: Protects against rust and corrosion
Emissions
Miles: 80,000
Years: 8
Coverage: Ensures compliance with emission standards

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Precision casting
  • CNC machining
  • Automated assembly
  • Rigorous testing
Quality Control
inspection: 100% component inspection
Testing: Dynamic performance testing
Standards: ISO 9001 certified
Sustainability Practices
  • Recycled aluminum usage
  • Waste reduction initiatives
  • Energy-efficient manufacturing
Production Metrics
Units Per Year: 500,000
Defect Rate: Less than 0.1%
Lead Time: 4 weeks

Service Information for 10l80 transmission Service

Maintenance and service requirements specific to this component

7,500
6
  • Inspect transmission fluid level
  • Check for leaks
  • Monitor shift performance
  • Inspect external seals

Use only specified transmission fluids.

45,000
36
  • Replace transmission fluid
  • Inspect internal components
  • Check clutch wear
  • Perform diagnostic scan

Requires specialized equipment for fluid replacement.

100,000
84
  • Complete transmission inspection
  • Replace seals and gaskets
  • Check torque converter
  • Perform full system test

Major service may require transmission removal.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 10L80 transmission compatible with other models besides the 2021-Present GMC Yukon?

The 10L80 transmission is specifically designed for the 2021-Present GMC Yukon and its sibling models like the Chevrolet Tahoe and Suburban. It is not compatible with older models or vehicles outside the GM full-size SUV lineup. Always verify compatibility using the vehicle’s VIN and consult with a GM-certified technician before attempting any cross-model installation.

Q2

What are the maintenance requirements for the 10L80 transmission?

The 10L80 transmission requires regular maintenance, including fluid changes every 45,000 to 60,000 miles, depending on driving conditions. Inspect for leaks, ensure proper fluid levels, and check for software updates via GM’s diagnostic tools. Avoid towing beyond the vehicle’s rated capacity to prevent premature wear. Follow the owner’s manual for detailed intervals and procedures.

Q3

How do I install or replace the 10L80 transmission in my GMC Yukon?

Replacing the 10L80 transmission involves disconnecting the battery, removing the driveshaft, exhaust components, and transmission crossmember. Use a transmission jack to safely lower and remove the old unit. Install the new transmission by reversing the process, ensuring proper alignment and torque specifications. Refill with the recommended transmission fluid and perform a system calibration using GM diagnostic software.

Q4

What should I do if my 10L80 transmission is not shifting smoothly?

If your 10L80 transmission is not shifting smoothly, first check the fluid level and condition. Low or contaminated fluid can cause issues. Scan for diagnostic trouble codes using GM’s diagnostic tools. Common solutions include updating the transmission control module (TCM) software, replacing worn components, or addressing electrical issues. Consult a certified technician for advanced diagnostics.

Q5

How can I optimize the performance of my 10L80 transmission?

To optimize the 10L80 transmission’s performance, use the recommended Dexron VI transmission fluid and ensure regular maintenance. Avoid aggressive driving, especially when the transmission is cold. Consider upgrading the transmission cooler for heavy towing or high-performance use. Regularly update the TCM software to benefit from GM’s latest performance enhancements and fixes.

Factory Service Resources

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

10L80 Transmission Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the 10L80 transmission, including disassembly, reassembly, and troubleshooting procedures.

10L80 Transmission Technical Bulletin

Coming Soon

This bulletin outlines common issues, software updates, and recommended fixes for the 10L80 transmission to ensure optimal performance and reliability.

10L80 Parts and Accessories Catalog

Coming Soon

This catalog lists all OEM parts and accessories for the 10L80 transmission, including part numbers, descriptions, and compatibility details.

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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
ASE

Alan Montanye

Automotive Technical Specialist

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