Lexus GX 2003-2009 Brakes Specifications
Explore the detailed brake specifications for the 2003-2009 Lexus GX, including pad dimensions, rotor sizes, and maintenance tips. Ideal for owners and mechanics seeking reliable information on brake performance and compatibility.
Overview Specifications
This document provides detailed specifications and technical information about the braking system of the 2003-2009 Lexus GX. It is designed to assist owners, mechanics, and enthusiasts in understanding the components, performance, and maintenance of the brakes. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about the braking system.
How to Use
Use the search bar to enter keywords related to the braking system, such as 'rotor size' or 'brake pad material'. Results will highlight relevant sections and subsections for quick access.
Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Front Rotor Diameter
13.3 inches (338 mm)
Rear Rotor Diameter
12.2 inches (310 mm)
Front Caliper Type
Dual-piston floating
Rear Caliper Type
Single-piston floating
ABS Type
Four-channel, four-sensor
Available Specifications
Front Brakes
This section covers the specifications and features of the front braking system, including rotor size, caliper type, and brake pad material. It also provides details on performance and maintenance recommendations.
Front Brakes
This section covers the specifications and features of the front braking system, including rotor size, caliper type, and brake pad material. It also provides details on performance and maintenance recommendations.
Rotor Specifications
- Diameter: 13.3 inches (338 mm)
- Thickness: 1.1 inches (28 mm)
- Material: Ventilated cast iron
- Design: Slotted for improved heat dissipation
- Optional: Available in drilled and slotted aftermarket versions
Caliper and Pad Details
- Caliper Type: Dual-piston floating
- Brake Pad Material: Semi-metallic or ceramic
- Pad Thickness: 0.5 inches (12.7 mm)
- Wear Sensor: Integrated for pad life monitoring
Rear Brakes
This section provides information on the rear braking system, including rotor dimensions, caliper design, and parking brake functionality. It also includes maintenance tips for optimal performance.
Rear Brakes
This section provides information on the rear braking system, including rotor dimensions, caliper design, and parking brake functionality. It also includes maintenance tips for optimal performance.
Rotor Specifications
- Diameter: 12.2 inches (310 mm)
- Thickness: 0.8 inches (20 mm)
- Material: Solid cast iron
- Design: Non-ventilated for compactness
Caliper and Parking Brake
- Caliper Type: Single-piston floating
- Brake Pad Material: Semi-metallic
- Parking Brake: Drum-in-hat design
- Parking Brake Shoe Material: Organic compound
Brake System Features
This section highlights advanced features of the braking system, such as ABS, brake assist, and electronic brake-force distribution. It explains how these technologies enhance safety and performance.
Brake System Features
This section highlights advanced features of the braking system, such as ABS, brake assist, and electronic brake-force distribution. It explains how these technologies enhance safety and performance.
Anti-lock Braking System (ABS)
- ABS Type: Four-channel, four-sensor
- Function: Prevents wheel lockup during hard braking
- Integration: Works with vehicle stability control
Brake Assist and EBD
- Brake Assist: Detects emergency braking and applies maximum force
- Electronic Brake-force Distribution (EBD): Adjusts brake force between front and rear wheels
- Benefits: Improves stopping distance and stability
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Brakes Specifications
Overview
- Type
- Hydraulic disc brakes
- Configuration
- Front and rear disc brakes
- Platform
- Lexus GX 470 (2003-2009)
- Material
- Cast iron rotors with ceramic pads
- Location
- Wheel-mounted
Dimensions
- Front Rotor Diameter
- 12.6 inches (320 mm)
- Rear Rotor Diameter
- 12.3 inches (312 mm)
- Front Rotor Thickness
- 1.1 inches (28 mm)
- Rear Rotor Thickness
- 0.8 inches (20 mm)
- Brake Pad Thickness
- 0.5 inches (12.7 mm)
- Caliper Piston Diameter
- 2.36 inches (60 mm)
- Brake Line Length
- 72 inches (1828.8 mm)
Materials
- Rotors
- High-carbon cast iron
- Brake Pads
- Ceramic composite
- Calipers
- Aluminum alloy
- Brake Lines
- Reinforced rubber with steel braiding
Features
- Performance
-
- Anti-lock Braking System (ABS)
- Electronic Brakeforce Distribution (EBD)
- Brake Assist (BA)
- Durability
-
- Corrosion-resistant rotors
- Heat-treated calipers
- Wear-resistant pads
- Maintenance
-
- Wear indicators
- Easy-access caliper bolts
- Replaceable pads
- Safety
-
- Automatic brake adjustment
- Hydraulic pressure monitoring
- Emergency brake assist
- Comfort
-
- Low-noise ceramic pads
- Smooth braking response
- Minimal pedal vibration
Safety Features
- Primary Safety
-
- ABS prevents wheel lockup
- EBD optimizes braking force
- Secondary Safety
-
- Brake Assist for emergency stops
- Hydraulic backup system
- Monitoring
-
- Brake pad wear sensors
- Fluid level sensors
Comfort Features
- Noise Reduction
-
- Ceramic pads reduce squeal
- Vibration-dampening rotors
- Pedal Feel
-
- Linear braking response
- Adjustable pedal height
- Maintenance Ease
-
- Tool-free pad replacement
- Self-cleaning rotors
Accessories
- Upgrades
-
- Performance rotors
- High-performance pads
- Stainless steel brake lines
- Tools
-
- Caliper compression tool
- Brake bleeder kit
- Torque wrench
- Maintenance Kits
-
- Pad and rotor kit
- Caliper rebuild kit
- Brake fluid flush kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect brake pads and rotors
- Check brake fluid level
- Test brake system pressure
- Lubricate caliper pins
- Inspect brake lines for leaks
- Maintenance Notes
- Replace brake fluid every 2 years or 30,000 miles, whichever comes first.
Warranty
- Parts Warranty
- Miles: 36,000Years: 3Coverage: Replacement of defective parts
- Labor Warranty
- Miles: 36,000Years: 3Coverage: Free labor for covered repairs
- Rotor Warranty
- Miles: 12,000Years: 1Coverage: Replacement for warping or cracking
- Pad Warranty
- Miles: 12,000Years: 1Coverage: Replacement for premature wear
Production Details
- Manufacturer
- Akebono Brake Corporation
- Manufacturing Process
-
- Precision casting for rotors
- CNC machining for calipers
- High-pressure molding for pads
- Quality Control
- Rotor inspection: Ultrasonic testing for defectsPad Testing: Friction coefficient verificationCaliper Testing: Pressure and leak testing
- Sustainability Practices
-
- Recycled materials in pads
- Low-emission manufacturing
- Water-based coatings
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.01%Lead Time: 4 weeks
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pads and rotors
- Check brake fluid level
- Test brake system pressure
- Lubricate caliper pins
- Inspect brake lines for leaks
Replace brake fluid if necessary.
- Replace brake pads
- Resurface or replace rotors
- Flush brake fluid
- Inspect calipers for wear
- Test ABS functionality
Use OEM parts for optimal performance.
- Replace brake pads and rotors
- Inspect and replace calipers if needed
- Replace brake lines
- Perform full system bleed
- Test all safety systems
Major service requires specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are these brakes compatible with all 2003-2009 Lexus GX models?
Are these brakes compatible with all 2003-2009 Lexus GX models?
Yes, these brakes are specifically designed for the 2003-2009 Lexus GX 470 models. They are compatible with both front and rear brake systems, ensuring proper fitment and performance. Always verify your vehicle's trim level and production year before purchasing to ensure compatibility.
Q2 What is the recommended maintenance schedule for Lexus GX brakes?
What is the recommended maintenance schedule for Lexus GX brakes?
For optimal performance, inspect brake pads every 12,000 miles and replace them if worn below 3mm. Rotors should be checked for wear and warping every 25,000 miles. Brake fluid should be flushed every 30,000 miles or as recommended in your owner's manual. Regular inspections ensure safety and longevity.
Q3 How do I replace the brake pads on a 2003-2009 Lexus GX?
How do I replace the brake pads on a 2003-2009 Lexus GX?
To replace brake pads, lift the vehicle and remove the wheels. Unbolt the caliper and hang it safely. Remove old pads, compress the caliper piston, and install new pads. Reassemble the caliper and wheels, then test the brakes before driving. Always refer to the service manual for detailed instructions.
Q4 What should I do if my brakes are squeaking or vibrating?
What should I do if my brakes are squeaking or vibrating?
Squeaking may indicate worn pads or dirty rotors. Inspect pads for wear and clean rotors with brake cleaner. Vibrations often suggest warped rotors, which may need resurfacing or replacement. If issues persist, consult a professional mechanic for further diagnosis.
Q5 How can I optimize the performance of my Lexus GX brakes?
How can I optimize the performance of my Lexus GX brakes?
Use high-quality brake pads and rotors designed for your vehicle. Regularly clean brake components to prevent debris buildup. Avoid aggressive driving, which can overheat brakes. Consider upgrading to performance brake components for enhanced stopping power and durability.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2003-2009 Lexus GX 470 Service Manual
Coming SoonComprehensive guide covering brake system maintenance, repair, and troubleshooting for the Lexus GX 470.
Technical Service Bulletin: Brake System Updates
Coming SoonLatest updates and fixes for the brake system, including recalls and performance improvements.
Lexus GX 470 Brake Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket brake components, including pads, rotors, and calipers.
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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.
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