GMC Terrain 2010-2017 Body & Frame Bolt Torque Specifications
Comprehensive torque specifications for body bolts on the 2010-2017 GMC Terrain, crucial for proper vehicle maintenance and repair.
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
Suspension
Bolts that secure the suspension components to the vehicle's body, ensuring proper suspension alignment and stability.
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5Torque Value
2 Control Arm Bolts
M14 x 1.5
Control Arm Bolts
M14 x 1.5Torque Value
Steering
Bolts that secure the steering components to the vehicle's body, ensuring proper steering alignment and responsiveness.
1 Steering Gear/Rack Bolts
M12 x 1.25
Steering Gear/Rack Bolts
M12 x 1.25Torque Value
2 Tie Rod End Nut
M16 x 1.5
Tie Rod End Nut
M16 x 1.5Torque Value
3 Ball Joint Nut
M14 x 1.5
Ball Joint Nut
M14 x 1.5Torque Value
Body
Bolts that secure the vehicle's body to the frame, ensuring proper body alignment and stability.
1 Body Mount Bolts
M12 x 1.25
Body Mount Bolts
M12 x 1.25Torque Value
Important Notes
Doors and hinges
Bolts that secure the door and hood hinges to the vehicle's body, ensuring proper alignment and smooth operation.
1 Door Hinge Bolts
M10 x 1.25
Door Hinge Bolts
M10 x 1.25Torque Value
Important Notes
2 Hood Hinge Bolts
M10 x 1.25
Hood Hinge Bolts
M10 x 1.25Torque Value
Important Notes
3 Trunk Lid Hinge Bolts
M10 x 1.25
Trunk Lid Hinge Bolts
M10 x 1.25Torque Value
Important Notes
Bumper
Bolts that secure the bumper to the vehicle's body, ensuring proper alignment and stability.
1 Bumper Mounting Bolts
M12 x 1.25
Bumper Mounting Bolts
M12 x 1.25Torque 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 torque specifications important for body bolts?
Why are torque specifications important for body bolts?
Proper torque ensures secure attachment of body panels. Insufficient torque can lead to panel movement, rattles, and potential leaks (e.g., sunroof, windows). Over-torquing can damage threads, leading to future failure points and potentially requiring replacement of components.
Q2 What if I don't have the correct torque wrench?
What if I don't have the correct torque wrench?
Using a torque wrench is crucial. Improper tools can damage the fastener (bolt or nut) or the threaded hole in the component. If you don't have a torque wrench, seek professional assistance. A good approximation can be made if you have a comparable torque wrench, but using an incorrect tool may not meet the safety standards.
Q3 How do I know which torque specification to use if there are multiple values listed?
How do I know which torque specification to use if there are multiple values listed?
Refer to the specific body component location diagram. Different body panels and fasteners will have different torque specifications. The correct value will be listed in the table alongside the part number and location. Always consult the official repair manual for accurate and complete guidance.
Q4 What happens if a body bolt breaks?
What happens if a body bolt breaks?
A broken body bolt can lead to the panel becoming detached, potentially causing damage to the vehicle's structure and other components. It can also create safety hazards, such as loose panels obstructing the driver's view or impeding the proper function of the vehicle's systems. Immediate repair is necessary.
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
A torque wrench is essential for ensuring accurate torque application on fasteners.
- Accurate torque measurement
- Adjustable torque settings
- Durable construction
Socket Set
A socket set with various sizes for different fastener types is necessary for loosening and tightening bolts.
- Wide range of socket sizes
- Impact resistant material
- Different socket styles (e.g., standard, deep well)
Ratchet
A ratchet allows for efficient and controlled turning of fasteners.
- Adjustable ratchet head
- Different ratchet styles for various needs
Gloves
Protective gloves to prevent hand injuries.
- Slip-resistant material
- Comfortable fit
Jack Stands
For safely lifting the vehicle during body repairs.
- Adjustable height
- Durable construction
Wheel Chocks
Used to prevent the vehicle from rolling during body repairs.
- Durable material
- Stable design
Service Procedures
Replacing a Damaged Fender
Procedure for replacing a damaged fender on a 2010-2017 GMC Terrain.
- Inspect the damage and identify all fasteners needing replacement.
- Using the correct torque wrench, tighten all fasteners to the specified torque values from the repair manual.
Replacing a Body Panel
Procedure for replacing a damaged body panel on a 2010-2017 GMC Terrain. This includes removing the panel, replacing it with a new one, and reattaching it correctly.
- Remove the old panel, following necessary steps to disconnect electrical components and other connections.
- Carefully install the new panel and ensure it aligns properly.
- Tighten all fasteners to the specified torque values using the correct torque wrench.
Technical Service Bulletins
Body Panel Misalignment Issues
2015-03-15Addresses issues with body panel misalignment observed in certain 2010-2017 GMC Terrain models.
Resolution: Inspect for improper torque application on all body panel fasteners. If necessary, re-torque all fasteners to the correct specifications. Ensure proper alignment of the panel.
Fender Bolt Failure
2012-10-24Reports of fender bolt failure in certain 2010-2017 GMC Terrain models due to incorrect torque settings.
Resolution: Ensure proper torque specifications are applied to all fender bolts. Check for damaged or corroded bolts and replace as needed.
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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.