Lexus HS 2010-2012 Drivetrain Specifications
Lexus HS 2010-2012

Lexus HS 2010-2012 Drivetrain Specifications

Explore the comprehensive drivetrain specifications for the 2010-2012 Lexus HS, including engine, transmission, and differential details. Ideal for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the drivetrain of the 2010-2012 Lexus HS. It is designed to help users understand the key components, performance metrics, and maintenance considerations of the vehicle's drivetrain. Use the search and navigation instructions to quickly find relevant information or explore the sections for a comprehensive understanding.

How to Use

Use the search bar to enter keywords related to the drivetrain, such as 'transmission' or 'engine type'. Results will highlight relevant sections and subsections for quick access.

Scroll through the sections to explore major topics. Click on subsection titles to expand and view detailed technical points. Use the quick reference table for key specifications.

Key Specifications

Engine Type

2.4L inline-4 hybrid

Horsepower

187 hp (combined)

Transmission

ECVT

Fuel Economy

35 mpg combined

Battery Warranty

8 years/100,000 miles

Available Specifications

Engine and Transmission

This section covers the engine specifications and transmission system of the 2010-2012 Lexus HS. It includes details about the engine type, power output, and transmission configuration, as well as how these components work together to deliver performance.

Engine Specifications
  • 2.4L inline-4 Atkinson cycle engine
  • 147 horsepower at 6,000 rpm
  • 140 lb-ft of torque at 4,400 rpm
  • Dual Variable Valve Timing with intelligence (VVT-i)
  • Hybrid Synergy Drive system
  • Combined output of 187 horsepower
Transmission System
  • Electronically Controlled Continuously Variable Transmission (ECVT)
  • Front-wheel drive configuration
  • Smooth and efficient power delivery
  • Regenerative braking system for energy recovery

Hybrid System

This section focuses on the hybrid drivetrain components, including the electric motor, battery system, and energy management. It explains how the hybrid system enhances fuel efficiency and reduces emissions.

Electric Motor
  • Permanent magnet synchronous motor
  • 40 horsepower output
  • 153 lb-ft of torque
  • Seamless integration with gasoline engine
Battery System
  • Nickel-metal hydride (NiMH) battery pack
  • Located under the rear seat for optimal weight distribution
  • Air-cooled system for temperature management
  • 8-year/100,000-mile warranty

Performance and Efficiency

This section highlights the performance metrics and fuel efficiency of the Lexus HS drivetrain. It includes acceleration, top speed, and EPA-estimated fuel economy figures.

Performance Metrics
  • 0-60 mph in 8.4 seconds
  • Top speed of 112 mph
  • Smooth and quiet operation
  • Eco and Power driving modes
Fuel Efficiency
  • EPA-estimated 35 mpg city
  • EPA-estimated 34 mpg highway
  • Combined fuel economy of 35 mpg
  • Low emissions for reduced environmental impact

Component Specifications

Overview

Type
Front-wheel drive
Configuration
Transverse engine layout
Platform
Toyota MC platform
Material
Aluminum and steel composite
Location
Front-mounted

Dimensions

Transmission Length
22.8 in (579 mm)
Axle Width
60.2 in (1529 mm)
Drive Shaft Diameter
2.5 in (63.5 mm)
Differential Gear Ratio
3.73:1
Engine Mount Spacing
18.9 in (480 mm)
Transmission Mount Spacing
14.2 in (361 mm)
Drive Shaft Length
42.7 in (1085 mm)

Materials

Transmission Case
Aluminum alloy
Drive Shaft
High-strength steel
Differential Housing
Cast iron
Axles
Forged steel
Engine Mounts
Rubber and steel composite

Features

Transmission
  • Electronically controlled continuously variable transmission (CVT)
  • 7-speed manual shift mode
  • Sport mode with paddle shifters
  • Eco mode for fuel efficiency
Differential
  • Open differential
  • Limited-slip functionality
  • Sealed lubrication system
Engine Integration
  • Direct engine-to-transmission mounting
  • Integrated torque converter
  • Electronic throttle control
Cooling
  • Transmission fluid cooler
  • Integrated heat exchanger
  • Air-cooled differential
Control Systems
  • Electronic stability control (ESC)
  • Traction control system (TCS)
  • Anti-lock braking system (ABS) integration

Safety Features

Structural
  • Reinforced transmission tunnel
  • Crash-resistant drive shaft
Electronic
  • Hill-start assist
  • Downhill assist control
Mechanical
  • Shear-pin drive shaft safety feature
  • Overheat protection system

Comfort Features

Noise Reduction
  • Acoustic dampening materials
  • Precision-balanced drive shaft
Vibration Control
  • Hydraulic engine mounts
  • Dual-mass flywheel
Shift Quality
  • Smooth CVT operation
  • Adaptive shift programming

Accessories

Performance
  • Sport-tuned suspension
  • Upgraded transmission cooler
  • High-performance axle shafts
Protection
  • Transmission skid plate
  • Drive shaft loop
  • Differential guard
Maintenance
  • Transmission fluid dipstick
  • Differential drain plug
  • Service access panels

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Transmission fluid change
  • Differential oil replacement
  • Drive shaft inspection
  • CV joint lubrication
  • Mount inspection and replacement
Notes
Use only Lexus-approved fluids and lubricants

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and labor
Powertrain
Miles: 70,000
Years: 6
Coverage: Major drivetrain components
Corrosion
Miles: Unlimited
Years: 6
Coverage: Perforation from corrosion
Emissions
Miles: 80,000
Years: 8
Coverage: Emission-related components

Production Details

Manufacturer
Aisin Seiki Co., Ltd.
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Laser alignment
Quality Control
Testing: Durability testing, Vibration analysis, Thermal cycling
inspection: X-ray inspection, Ultrasonic testing, Dimensional verification
Sustainability
  • Recycled aluminum usage
  • Closed-loop lubrication system
  • Low-emission manufacturing
Production Metrics
Units Per Day: 1200
Defect Rate: 0.02%
Energy Usage: 15 kWh per unit

Service Information for drivetrain Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect transmission fluid level
  • Check drive shaft boots for damage
  • Lubricate CV joints
  • Inspect differential seals
  • Check engine and transmission mounts

Use only Lexus-approved transmission fluid

60,000
48
  • Replace transmission fluid
  • Change differential oil
  • Inspect drive shaft balance
  • Check axle alignment
  • Test electronic control systems

Requires special tools for fluid replacement

90,000
72
  • Complete drivetrain inspection
  • Replace transmission filter
  • Check torque converter operation
  • Inspect all seals and gaskets
  • Perform vibration analysis

Recommended dealer service for major inspection

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the drivetrain specifications for the 2010-2012 Lexus HS?

The 2010-2012 Lexus HS features a front-wheel-drive (FWD) system powered by a 2.4L inline-4 engine paired with an electronically controlled continuously variable transmission (ECVT). The drivetrain is designed for optimal fuel efficiency, delivering 147 horsepower and 138 lb-ft of torque. It is compatible with standard Lexus HS models and hybrid variants, ensuring smooth performance and reliability.

Q2

What maintenance is required for the Lexus HS drivetrain?

Regular maintenance for the Lexus HS drivetrain includes checking and replacing transmission fluid every 60,000 miles, inspecting CV joints and axles for wear, and ensuring proper alignment. Hybrid models require additional attention to the electric motor and battery cooling systems. Follow the manufacturer's maintenance schedule for optimal performance and longevity.

Q3

How do I replace the drivetrain components on a Lexus HS?

To replace drivetrain components, first, lift the vehicle securely and remove the undercarriage covers. Disconnect the driveshaft, CV axles, and transmission linkages. Use appropriate tools to remove and install new components, ensuring proper torque specifications. Reassemble and test the system for leaks or irregularities. Always refer to the service manual for detailed instructions.

Q4

What are common drivetrain issues in the Lexus HS?

Common issues include transmission fluid leaks, CV joint wear, and unusual noises during acceleration. Diagnose by inspecting fluid levels, checking for damaged boots, and listening for grinding or clicking sounds. Replace worn components and ensure proper lubrication to resolve these issues.

Q5

How can I optimize the performance of my Lexus HS drivetrain?

Optimize performance by using high-quality transmission fluid, maintaining proper tire pressure, and ensuring regular alignment checks. For hybrid models, keep the battery cooling system clean and monitor the electric motor's performance. Avoid aggressive driving to reduce wear on drivetrain components.

Factory Service Resources

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

Lexus HS 2010-2012 Service Manual

Coming Soon

Comprehensive guide covering drivetrain maintenance, repair procedures, and technical specifications for the Lexus HS.

Technical Service Bulletin: Drivetrain Updates

Coming Soon

Latest updates and fixes for drivetrain-related issues in the 2010-2012 Lexus HS models.

Lexus HS Drivetrain Parts Catalog

Coming Soon

Detailed catalog of OEM drivetrain parts and accessories for the 2010-2012 Lexus HS.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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