Buick LaCrosse 2005-2009 Brakes Specifications
Explore detailed brake specifications for the 2005-2009 Buick LaCrosse, including rotor sizes, pad dimensions, and caliper details. Essential for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and instructions for the braking system of the 2005-2009 Buick LaCrosse. It is designed to assist users in understanding the components, maintenance, and key features of the brakes. Whether you are a car enthusiast, mechanic, or owner, this guide will help you navigate the technical details and ensure optimal performance of your vehicle's braking system.
How to Use
Use the search functionality to quickly locate specific brake components or specifications. Enter keywords such as 'brake pads' or 'rotor diameter' to find relevant information.
Navigate through the document by scrolling or using the table of contents. Each section is clearly labeled to help you find information on brake types, maintenance tips, and key specifications.
Key Specifications
Front Rotor Diameter
11.7 inches
Rear Rotor Diameter
11.5 inches
Brake Fluid Type
DOT 3/DOT 4
Stopping Distance (60-0 mph)
125 feet
Brake Pad Material (Front)
Semi-metallic
Available Specifications
Brake Types and Components
This section covers the different types of brakes and their components used in the 2005-2009 Buick LaCrosse. Learn about the front and rear brake systems, including disc and drum brakes, and their respective parts.
Brake Types and Components
This section covers the different types of brakes and their components used in the 2005-2009 Buick LaCrosse. Learn about the front and rear brake systems, including disc and drum brakes, and their respective parts.
Front Brake System
- Equipped with ventilated disc brakes
- Brake rotor diameter: 11.7 inches
- Single-piston floating calipers
- Brake pad material: semi-metallic
- Includes wear sensors for pad monitoring
Rear Brake System
- Equipped with solid disc brakes
- Brake rotor diameter: 11.5 inches
- Single-piston floating calipers
- Brake pad material: ceramic
- Integrated parking brake mechanism
Brake Maintenance
This section provides essential tips and procedures for maintaining the braking system of the Buick LaCrosse. Learn how to inspect, replace, and service brake components to ensure safety and longevity.
Brake Maintenance
This section provides essential tips and procedures for maintaining the braking system of the Buick LaCrosse. Learn how to inspect, replace, and service brake components to ensure safety and longevity.
Brake Pad Replacement
- Recommended replacement interval: 30,000-50,000 miles
- Check for uneven wear or thickness below 3mm
- Use OEM or equivalent replacement pads
- Reset brake wear sensors after replacement
- Lubricate caliper slides during installation
Brake Fluid Maintenance
- Use DOT 3 or DOT 4 brake fluid
- Replace fluid every 2 years or 30,000 miles
- Check fluid level monthly
- Bleed brake system after fluid replacement
- Inspect for leaks in brake lines and master cylinder
Brake Performance
This section highlights the performance characteristics of the Buick LaCrosse's braking system. Understand stopping distances, pedal feel, and advanced features that enhance safety.
Brake Performance
This section highlights the performance characteristics of the Buick LaCrosse's braking system. Understand stopping distances, pedal feel, and advanced features that enhance safety.
Stopping Distance
- 60-0 mph stopping distance: 125 feet
- Brake assist system for emergency braking
- ABS prevents wheel lockup during hard stops
- Electronic brake force distribution (EBD)
- Stable braking in wet and dry conditions
Pedal Feel and Response
- Firm and responsive brake pedal
- Minimal pedal travel required
- Low noise and vibration during braking
- Smooth engagement of ABS
- Consistent performance across temperatures
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Brakes Specifications
Overview
- Type
- Hydraulic Disc/Drum
- Configuration
- Front Disc/Rear Drum
- Platform
- Epsilon
- Material
- Cast Iron
- Location
- Front and Rear Axles
Dimensions
- Rotor Diameter Front
- 11.8 inches (299.7 mm)
- Rotor Thickness Front
- 1.02 inches (25.9 mm)
- Drum Diameter Rear
- 9.5 inches (241.3 mm)
- Drum Width Rear
- 1.89 inches (48 mm)
- Pad Length Front
- 5.12 inches (130 mm)
- Pad Height Front
- 2.36 inches (60 mm)
- Shoe Length Rear
- 6.3 inches (160 mm)
- Shoe Height Rear
- 1.77 inches (45 mm)
Materials
- Rotor
- Cast Iron with Anti-Corrosion Coating
- Drum
- Cast Iron with Machined Surface
- Brake Pads
- Semi-Metallic Friction Material
- Brake Shoes
- Non-Asbestos Organic Friction Material
- Brake Fluid
- DOT 3 Hydraulic Fluid
Features
- Performance
-
- High-Friction Brake Pads
- Vented Front Rotors
- Self-Adjusting Rear Drums
- Durability
-
- Rust-Resistant Rotors
- Heat-Treated Drums
- Reinforced Brake Lines
- Technology
-
- ABS (Anti-Lock Braking System)
- Electronic Brake Force Distribution
- Brake Assist
- Maintenance
-
- Wear Sensors on Front Pads
- Easy-Access Caliper Design
- Replaceable Drum Components
- Safety
-
- Dual-Circuit Hydraulic System
- Emergency Brake Backup
- Integrated Warning Lights
Safety Features
- Anti Lock
-
- 4-Channel ABS
- Wheel Speed Sensors
- Hydraulic Control Unit
- Emergency
-
- Mechanical Parking Brake
- Redundant Hydraulic Circuits
- Automatic Brake Assist
- Monitoring
-
- Brake Pad Wear Indicator
- Fluid Level Sensor
- System Diagnostic Alerts
Comfort Features
- Noise Reduction
-
- Chamfered Brake Pads
- Anti-Squeal Shims
- Drum Silencing Springs
- Pedal Feel
-
- Optimized Brake Booster
- Proportional Valve Tuning
- Smooth Engagement
- Maintenance Ease
-
- Tool-Free Pad Replacement
- Accessible Bleeder Valves
- Clear Inspection Points
Accessories
- Upgrades
-
- Performance Rotors
- Ceramic Brake Pads
- Stainless Steel Brake Lines
- Tools
-
- Caliper Compression Tool
- Drum Brake Spring Tool
- Brake Bleeder Kit
- Protection
-
- Rust Inhibitor Spray
- Brake Dust Shields
- Caliper Covers
Maintenance
- Service interval
- Every 12,000 miles or 12 months
- Service Items
-
- Inspect Brake Pads and Shoes
- Check Rotor and Drum Surfaces
- Test Brake Fluid Quality
- Lubricate Caliper Slides
- Adjust Parking Brake
- Notes
- Replace brake fluid every 30,000 miles or 2 years.
Warranty
- Parts
- Miles: 36,000Years: 3Coverage: Brake Pads, Shoes, Rotors, Drums
- Labor
- Miles: 12,000Years: 1Coverage: Installation and Adjustment
- Fluid
- Miles: 30,000Years: 2Coverage: Brake Fluid Replacement
- Accessories
- Miles: 12,000Years: 1Coverage: Upgrade Parts
Production Details
- Manufacturer
- Delphi Automotive
- Manufacturing Process
-
- Casting
- Machining
- Heat Treatment
- Coating
- Quality Control
- Testing: Dimensional Inspection, Material Hardness Testing, Performance BenchmarksCertifications: ISO 9001, ISO/TS 16949, OEM Standards
- Sustainability
-
- Recycled Cast Iron
- Water-Based Coatings
- Energy-Efficient Production
- Production Metrics
- Units Per Day: 5000Defect Rate: 0.02%Lead Time: 2 weeks
Service Information for brakes Service
Maintenance and service requirements specific to brakes
- Inspect brake pads and shoes for wear
- Check rotor and drum surfaces for damage
- Test brake fluid for contamination
- Lubricate caliper slides
- Adjust parking brake
Ensure proper torque on all fasteners.
- Replace brake fluid
- Inspect brake lines for leaks
- Check ABS sensors
- Clean and adjust rear drum brakes
- Verify brake pedal feel
Use DOT 3 or DOT 4 brake fluid only.
- Replace front brake pads and rotors
- Replace rear brake shoes and drums
- Inspect and replace brake hoses if necessary
- Test ABS system functionality
- Perform full system bleed
Replace components in axle pairs only.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications for the brakes on a 2005-2009 Buick LaCrosse?
What are the technical specifications for the brakes on a 2005-2009 Buick LaCrosse?
The 2005-2009 Buick LaCrosse features a front disc brake system with 12.7-inch vented rotors and dual-piston calipers, while the rear uses 12.0-inch solid rotors with single-piston calipers. The system is compatible with DOT 3 brake fluid and requires pads with a minimum friction rating of mu=0.35. Ensure all components meet or exceed OEM specifications for optimal performance and safety.
Q2 What maintenance is required for the brakes on a 2005-2009 Buick LaCrosse?
What maintenance is required for the brakes on a 2005-2009 Buick LaCrosse?
Regular brake maintenance includes inspecting pads and rotors every 12,000 miles, replacing pads when worn below 1/8 inch, and resurfacing or replacing rotors if excessive warping or scoring is present. Brake fluid should be flushed and replaced every 30,000 miles, and the entire system should be inspected annually for leaks or damage.
Q3 How do I replace the brake pads on a 2005-2009 Buick LaCrosse?
How do I replace the brake pads on a 2005-2009 Buick LaCrosse?
Jack the vehicle and remove the wheels. Remove the caliper bolts and slide the caliper off the rotor. Remove the old pads and install the new ones, ensuring proper alignment. Reinstall the caliper and tighten the bolts to 35 ft-lbs. Bleed the brakes if necessary, and test the system by driving carefully at low speeds.
Q4 How do I troubleshoot common brake issues on a 2005-2009 Buick LaCrosse?
How do I troubleshoot common brake issues on a 2005-2009 Buick LaCrosse?
Check for spongy brakes by inspecting the master cylinder and hoses for leaks. Address grinding noises by inspecting pads and rotors for wear. If the brake light is on, use a scan tool to check for ABS module codes. Perform a thorough inspection of all components and test drive the vehicle to replicate symptoms.
Q5 How can I optimize brake performance on a 2005-2009 Buick LaCrosse?
How can I optimize brake performance on a 2005-2009 Buick LaCrosse?
Upgrade to high-friction brake pads (mu=0.40 or higher) for improved stopping power. Install slotted or drilled rotors to enhance heat dissipation and reduce fade. Ensure proper brake fluid levels and use a high-performance DOT 4 fluid. Maintain proper tire pressure and alignment to optimize braking efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2005-2009 Buick LaCrosse Service Manual
Coming SoonComprehensive guide covering brake system maintenance, repair, and diagnostics.
Technical Service Bulletin: Brake System Updates
Coming SoonOfficial GM updates and bulletins for brake system improvements and recalls.
Buick LaCrosse Brake Parts Catalog
Coming SoonDetailed listing of OEM and aftermarket brake components with part numbers.
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Technical Information
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