Buick Verano 2012-2017 Brake System Bolt Torque Specifications
This page provides detailed torque specifications for brake components on the 2012-2017 Buick Verano, including caliper bracket bolts, caliper guide pins, and other related hardware.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
Search Specifications
Search by component name, bolt size, or description
Torque Calculator
Convert between different torque units
Front Brakes
Torque specifications for components of the front brake system, including calipers, brackets, hoses, and rotors. These components are critical for safe braking performance.
1 Front Caliper Guide Pin Bolts
M10 x 1.25
Front Caliper Guide Pin Bolts
M10 x 1.25Torque Value
Important Notes
2 Front Caliper Bracket Bolts
M12 x 1.75
Front Caliper Bracket Bolts
M12 x 1.75Torque Value
Important Notes
3 Front Brake Hose Banjo Bolt
M10 x 1.0
Front Brake Hose Banjo Bolt
M10 x 1.0Torque Value
Important Notes
4 Front Brake Rotor Retaining Bolt
M6 x 1.0
Front Brake Rotor Retaining Bolt
M6 x 1.0Torque Value
Important Notes
Rear Disc Brakes
Torque specifications for rear disc brake components, including calipers, brackets, hoses, and rotors. These components are crucial for balanced braking performance.
1 Rear Caliper Guide Pin Bolts (Disc)
M10 x 1.25
Rear Caliper Guide Pin Bolts (Disc)
M10 x 1.25Torque Value
Important Notes
2 Rear Caliper Bracket Bolts (Disc)
M12 x 1.75
Rear Caliper Bracket Bolts (Disc)
M12 x 1.75Torque Value
Important Notes
3 Rear Brake Hose Banjo Bolt (Disc)
M10 x 1.0
Rear Brake Hose Banjo Bolt (Disc)
M10 x 1.0Torque Value
Important Notes
4 Rear Rotor Retaining Bolt (Disc)
M6 x 1.0
Rear Rotor Retaining Bolt (Disc)
M6 x 1.0Torque Value
Important Notes
Rear Drum Brakes
Torque specifications for rear drum brake components, including wheel cylinders and backing plates. These components are crucial for effective rear braking when drums are equipped.
1 Rear Wheel Cylinder Bolts (Drum)
M8 x 1.25
Rear Wheel Cylinder Bolts (Drum)
M8 x 1.25Torque Value
Important Notes
2 Brake Shoe Retaining Spring Pins
N/A
Brake Shoe Retaining Spring Pins
N/ATorque Value
Important Notes
3 Backing Plate bolts
M10 x 1.5
Backing Plate bolts
M10 x 1.5Torque Value
Important Notes
Master Cylinder And Booster
Torque specifications for the brake master cylinder and booster mounting. Correct torque is critical for safe brake function and proper pedal feel.
1 Brake Master Cylinder Mounting Bolts
M8 x 1.25
Brake Master Cylinder Mounting Bolts
M8 x 1.25Torque Value
Important Notes
2 Brake Booster Mounting Bolts
M10 x 1.5
Brake Booster Mounting Bolts
M10 x 1.5Torque Value
Important Notes
Abs System
Torque specifications for components of the Anti-lock Braking System (ABS), specifically the wheel speed sensor. Proper torque is important for accurate sensor readings.
1 Wheel Speed Sensor Bolt
M6 x 1.0
Wheel Speed Sensor Bolt
M6 x 1.0Torque Value
Important Notes
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Why are correct torque specifications important for brake bolts?
Why are correct torque specifications important for brake bolts?
Correct torque is crucial for brake system safety and performance. Over-tightening can damage bolts, threads, and brake components, leading to potential failure. Under-tightening can cause components to loosen during driving, resulting in brake malfunction or loss of control. Using a calibrated torque wrench is essential to achieve the specified torque.
Q2 What happens if I over-tighten brake caliper bolts?
What happens if I over-tighten brake caliper bolts?
Over-tightening can stretch or shear the bolts, damage the caliper threads, and even crack the caliper itself. This can lead to premature wear or failure of the bolt, requiring repair and potentially creating unsafe driving conditions. It can also make future disassembly difficult.
Q3 What happens if I under-tighten brake caliper bolts?
What happens if I under-tighten brake caliper bolts?
Under-tightened caliper bolts can loosen over time due to vibration and thermal cycling. This can cause the caliper to shift or move, leading to uneven brake pad wear, brake noise, and potentially a complete loss of braking ability. The bolts could even fall out.
Q4 Should I use new bolts when replacing brake components?
Should I use new bolts when replacing brake components?
It's generally recommended to use new bolts when replacing brake components, especially for critical parts like caliper brackets. Bolts can stretch or weaken over time and through cycles of tightening/loosening. Using new bolts ensures proper clamping force and reduces the risk of failure.
Q5 How often should I check my brake components?
How often should I check my brake components?
It's best to inspect your brake system during regular maintenance. Check the condition of brake pads, rotors, and calipers and look for any leaks. You should also check the tightness of the brake bolts, especially after brake work, after a few miles or as indicated by your service manual
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Torque Wrench (1/2" Drive)
A calibrated torque wrench is essential for achieving accurate bolt torque. A 1/2" drive is recommended for most brake system bolts.
- Adjustable torque settings
- Clear torque scale
- Ratchet mechanism
Torque Wrench (3/8" Drive)
A smaller 3/8" drive torque wrench is useful for some of the smaller brake component bolts, like those on the caliper or speed sensor.
- Adjustable torque settings
- Clear torque scale
- Ratchet mechanism
Socket Set (Metric)
A comprehensive set of metric sockets is necessary to fit the various bolt heads on the brake components.
- Variety of sizes (typically 8mm-19mm)
- 6-point sockets for better grip
- Chrome vanadium construction
Wrench Set (Metric)
A metric wrench set is helpful for accessing areas a socket and ratchet might not. It also provides a secondary method for holding bolts/nuts.
- Variety of sizes
- Open and closed end options
- Chrome vanadium construction
Brake Caliper Tool/Hanger
A brake caliper hanger prevents strain on the brake line and damage when removing the caliper during pad or rotor service.
- Prevents brake line damage
- Holds caliper out of the way
- Easy to use
Service Procedures
Front Caliper Bracket Bolt Torque
Procedure for torquing the front caliper bracket mounting bolts on a 2012-2017 Buick Verano.
- Locate the front caliper bracket bolts.
- Using a 1/2" drive torque wrench and appropriate socket, tighten the bolts to the specified torque (129 lb-ft or 175 Nm).
- Double-check all bolt torque values with the torque wrench.
Rear Caliper Bracket Bolt Torque
Procedure for torquing the rear caliper bracket mounting bolts on a 2012-2017 Buick Verano.
- Locate the rear caliper bracket bolts.
- Using a 1/2" drive torque wrench and appropriate socket, tighten the bolts to the specified torque (74 lb-ft or 100 Nm).
- Double-check all bolt torque values with the torque wrench.
Front Caliper Guide Pin Bolt Torque
Procedure for torquing the front caliper guide pin bolts on a 2012-2017 Buick Verano.
- Locate the front caliper guide pin bolts.
- Using a 3/8" drive torque wrench and appropriate socket, tighten the bolts to the specified torque (26 lb-ft or 35 Nm).
- Double-check all bolt torque values with the torque wrench.
Rear Caliper Guide Pin Bolt Torque
Procedure for torquing the rear caliper guide pin bolts on a 2012-2017 Buick Verano.
- Locate the rear caliper guide pin bolts.
- Using a 3/8" drive torque wrench and appropriate socket, tighten the bolts to the specified torque (26 lb-ft or 35 Nm).
- Double-check all bolt torque values with the torque wrench.
Wheel Lug Nut Torque
Procedure for torquing the wheel lug nuts on a 2012-2017 Buick Verano.
- Ensure the wheel is properly seated.
- Using a torque wrench and appropriate socket, tighten the wheel lug nuts in a star pattern to the specified torque (100 lb-ft or 140 Nm).
- Double-check all lug nut torque values.
Technical Service Bulletins
Brake Noise After Pad Replacement
2014-06-15Some vehicles may experience brake noise after brake pad replacement. This can be attributed to improper torque of the caliper bolts or the use of aftermarket pads. Inspect all torque values and components per guidelines
Resolution: Verify all caliper bracket and guide pin bolt torque specifications. Use OEM or specified aftermarket brake pads.
Caliper Bolt Corrosion
2016-01-20Some vehicles in regions with high road salt exposure may experience corrosion of the caliper bolts. Check brake bolt and pin threads for corrosion. Clean or replace corroded bolts.
Resolution: Inspect all caliper bolts for corrosion during brake service. Replace corroded bolts. Apply anti-seize compound during reassembly.
Steering Wheel Vibration During Braking
2017-03-02Some vehicles may experience steering wheel vibration during braking. This can be due to warped rotors and or unevenly torqued lug nuts. Inspect lug nut torque and rotor condition. Replace warped rotors and ensure correct torque on all lug nuts.
Resolution: Check wheel lug nut torque and ensure they are evenly tightened to spec. Inspect brake rotors for runout. Replace warped rotors as needed and recheck.
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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.