Cadillac XTS 2013-2019 Brake System Bolt Torque Specifications & Fastener Values
Cadillac XTS 2013-2019

Cadillac XTS 2013-2019 Brake System Bolt Torque Specifications

Detailed torque specifications for brake components on the 2013-2019 Cadillac XTS, including caliper bolts, bracket bolts, and rotor retaining screws.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

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.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

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.

Prevention:

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.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

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

Brake Calipers

Torque specifications for components directly related to the brake calipers, ensuring proper clamping force and safe operation.

1

Caliper Mounting Bolts

M12 x 1.75
Torque Value
74 ft-lbs (100 N·m)
Important Notes
These bolts secure the caliper to the mounting bracket. Torque evenly to ensure proper clamping.
2

Caliper Bleeder Screw

M10 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Torque to a low value to avoid damage to the hollow screw and ensure a proper seal.
3

Electronic Parking Brake Actuator Mounting Bolts

M8 x 1.25
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Ensures the electronic parking brake actuator is firmly mounted to the caliper. Estimated value.

Caliper Brackets

Specifications for the bolts that secure the caliper mounting brackets to the vehicle's knuckle or spindle.

1

Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Value
129 ft-lbs (175 N·m)
Important Notes
These bolts are critical for securing the bracket to the vehicle; use a calibrated torque wrench.

Brake Rotors

Torque specifications related to the brake rotors, ensuring proper mounting and preventing vibrations.

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Value
13 ft-lbs (18 N·m)
Important Notes
These bolts secure the rotor to the hub and should be torqued evenly; they may not be present on all vehicles, verify before install. Estimated value.
2

Brake Rotor Set Screw

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
If applicable, use this low torque value for the small set screw that may hold the rotor. Estimated value.

Wheel Components

Torque specifications for components related to mounting the wheels, crucial for maintaining the integrity of the brake system.

1

Wheel Lug Nuts

M14 x 1.5
Torque Value
100 ft-lbs (136 N·m)
Important Notes
Torque lug nuts in a star pattern for even wheel mounting and to prevent rotor warping or vibrations.

Hydraulic Components

Torque values for the various components within the hydraulic brake system.

1

Brake Line Fittings

M10 x 1.0
Torque Value
13 ft-lbs (18 N·m)
Important Notes
Use a flare nut wrench to avoid damaging the fitting. Over-tightening can cause leaks. Estimated value.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the master cylinder to the firewall or brake booster. Estimated value.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the booster to the firewall. Ensure proper torque for secure mounting. Estimated value.

Abs Components

Torque specifications for mounting the ABS module.

1

ABS Module Mounting Bolts

M6 x 1.0
Torque Value
10 ft-lbs (14 N·m)
Important Notes
These bolts secure the ABS module to the vehicle frame or body. Estimated value.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

1

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
2

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
3

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

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 proper torque specifications important for brake bolts?

Correct torque ensures the brake components are securely fastened without being over-tightened, which could damage threads or warp parts. Under-torquing can lead to loose components, potential brake failure, and unsafe driving conditions. Using a torque wrench is essential for precise fastening.

Q2

What happens if I overtighten brake caliper bolts?

Overtightening can stretch or break the bolts, damage threads in the caliper or mounting bracket, and even cause the caliper to bind or crack. This can lead to uneven braking, premature wear, and potentially catastrophic failure. Damaged components will require replacement.

Q3

How often should I check the torque on my brake bolts?

It's a good practice to check the torque on brake bolts after any brake service, such as pad or rotor replacement. It's advisable to re-check them after the first 50-100 miles of driving after maintenance to ensure they are still within specification. Periodically checking during regular inspections can also prevent issues.

Q4

Can I use threadlocker on brake bolts?

Yes, it is acceptable to use a threadlocker (such as Loctite 242, a medium strength, blue threadlocker) on brake bolts, particularly on bolts that are prone to loosening due to vibration. Make sure the threads are clean before application. This should not replace torquing bolts to the proper spec.

Q5

What tools do I need to torque brake bolts properly?

You will need a torque wrench calibrated in foot-pounds (ft-lbs) or Newton-meters (Nm), the correct size sockets for your specific bolts, and potentially an extension for the torque wrench to reach recessed bolts. Some specifications are very specific so it may be wise to acquire a high-quality torque wrench in the range of 20-150 ft-lbs.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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

A calibrated tool for applying precise torque to fasteners.

  • Measures torque in foot-pounds (ft-lbs) or Newton-meters (Nm)
  • Click-type or digital display for accurate readings
Learn more

Socket Set (Metric)

A set of metric sockets of various sizes to fit the fasteners on the brake system.

  • Various sizes to fit different nuts and bolts
  • 6-point sockets for better grip
Learn more

Wrench Set (Metric)

A set of metric wrenches of various sizes to fit the fasteners on the brake system.

  • Various sizes to fit different nuts and bolts
  • Open-end and box-end options
Learn more

Brake Caliper Wind Back Tool (if applicable)

Tool used to retract the piston into the brake caliper for pad replacement on some rear calipers.

  • Specific adapters for various caliper types
  • Prevents damage to caliper piston
Learn more
Service Procedures

Front Brake Caliper Bolt Torque

Procedure for correctly torquing the front brake caliper mounting bolts.

  • Locate the front brake caliper mounting bolts.
  • Using the appropriate metric socket and torque wrench, tighten the upper caliper guide pin bolt to 30 ft-lbs (41 Nm).
  • Using the appropriate metric socket and torque wrench, tighten the lower caliper guide pin bolt to 30 ft-lbs (41 Nm).
  • Ensure both bolts are tightened to the specified torque.
  • Re-check torque after operating vehicle for the day
View full procedure

Rear Brake Caliper Bolt Torque

Procedure for correctly torquing the rear brake caliper mounting bolts.

  • Locate the rear brake caliper mounting bolts.
  • Using the appropriate metric socket and torque wrench, tighten the upper caliper guide pin bolt to 25 ft-lbs (34 Nm).
  • Using the appropriate metric socket and torque wrench, tighten the lower caliper guide pin bolt to 25 ft-lbs (34 Nm).
  • Ensure both bolts are tightened to the specified torque.
  • Re-check torque after operating vehicle for the day
View full procedure

Brake Caliper Bracket Bolt Torque

Procedure for correctly torquing the brake caliper bracket bolts.

  • Locate the brake caliper bracket mounting bolts.
  • Using the appropriate metric socket and torque wrench, tighten the caliper bracket bolts to 125 ft-lbs (170 Nm) for the front brakes and 105 ft-lbs (142 Nm) for the rear brakes.
  • Ensure all bolts are tightened to the specified torque.
  • Re-check torque after operating vehicle for the day
View full procedure
Technical Service Bulletins

Brake Caliper Bolt Loosening

2017-03-15

Some vehicles may experience brake caliper bolt loosening after extended use. This can lead to reduced braking performance.

2013-2017 Cadillac XTS

Resolution: Inspect caliper bolts for proper torque. Apply thread locker and re-torque to specifications. Regularly inspect brake components

Brake System Squeal Diagnosis

2018-11-20

Describes the diagnostic process for identifying the cause of brake system squeal including proper torque of components.

2013-2019 Cadillac XTS

Resolution: Inspect brake pads for wear, inspect rotors for runout, and ensure proper torque on all brake components

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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