Why does my Subaru shake when I turn?

A vibration or shake when turning in a Subaru is usually caused by tires, drivetrain, or steering/suspension components. The most common culprits are worn CV joints or boots, unbalanced or uneven tires, misalignment, or worn steering parts. If the shake happens mainly during turns, start by checking tires and CV boots and then have alignment and steering components inspected.

Common causes when turning

To help you narrow down the source, the following categories cover the most frequent issues Subaru owners encounter when turning.

Tires and wheels

Uneven tire wear, out-of-round tires, or missing balance weights can create vibration that becomes noticeable as the car leans into a turn. Incorrect tire pressures across the four tires can also cause handling quirks during steering.

• Unbalanced wheels or missing/loose balance weights


• Uneven tread wear or cupping


• Damaged or bulged tires

Issues in this category are often the easiest to diagnose and fix, usually through rotation, balancing, or tire replacement.

Drivetrain and CV joints

Front-wheel and AWD Subarus rely on constant-velocity (CV) joints to transfer power to the wheels. A worn or torn outer CV joint boot can leak grease and wear down the joint, leading to vibration especially when turning and under load. You may also hear a clicking or popping sound during sharp turns if a CV joint is failing.

• Worn or damaged CV joints or axles


• Torn CV boots with grease leakage


• Inner CV joint wear in some AWD configurations

CV joint problems can worsen with steering angles and speed, and may require replacement of the boot and joint or the axle itself.

Steering and suspension

Worn steering linkage or suspension bushings can allow unwanted movement that translates into a shake when the steering wheel is turned or when weight is shifted. Tie rods, ball joints, control arms, and the steering rack are common trouble spots.

• Worn tie rods or ball joints


• Loose or worn steering rack components


• Worn control arm bushings or other suspension bushings

Because these parts affect steering precision, a diagnostic check is important if you notice play in the steering or changes in handling.

Diagnostics and steps you can take

If you want to systematically identify the cause, use these steps as a guide for a DIY check or to prepare for a professional diagnostic.

1. Inspect tires: look for uneven wear, bulges, or visible damage; measure tread depth across the circumference and check tire pressures to ensure they are equal on all four corners.


2. Check wheel balance and rims: ensure there are no missing balance weights and that rims aren’t bent or damaged.


3. Inspect CV boots and joints: look under the car at the CV boots for splits or grease; note any clicking sounds when turning.


4. Inspect steering and suspension components: check for play in tie rods and ball joints; listen for clunks or feel for looseness when bouncing the car or moving the control arms by hand (with the car safely lifted).


5. Check alignment: a toe-in/out imbalance or camber issues can cause pulling or vibrations during turns; have a shop perform a professional alignment if needed.


6. Consider drivetrain factors in AWD: if the vibration aligns with speed and steering input and the above checks are clean, a center differential or driveshaft condition could be involved; a dealer or Subaru-specialist shop can diagnose this with specific tests.

Some checks require equipment (like a wheel balancer, alignment rack, or CV joint inspection tools). If you’re unsure, schedule a diagnostic with a shop experienced with Subaru AWD systems.

When to seek professional help

Vibration during turning can indicate safety-critical issues. Have a professional inspect promptly if you notice any of the following signs.

• Grinding or clicking noises when turning, or a sudden loss of steering feel


• Persistent vibration at multiple speeds that does not disappear after tire balancing or alignment


• Visible damage to CV boots, grease around the wheel area, or wheel hub play


• Rumbling or grinding from the wheel bearings that worsens with speed


• ABS or stability-control warning lights that illuminate during turns

A qualified mechanic with Subaru AWD experience can perform a road test, lift inspection, CV joint assessment, drivetrain check, and wheel alignment to accurately diagnose and repair the issue.

Summary

Shake when turning in a Subaru is most often tied to tires, CV joints, wheel bearings, or alignment and steering components. Start with a careful tire inspection and balancing, then check CV boots and joints, and finally verify steering/suspension and alignment. In AWD Subarus, drivetrain components like the center differential can contribute to turning vibrations, so don’t overlook drivetrain diagnostics if the basic checks don’t resolve the issue. Seek professional help if the problem persists, worsens, or is accompanied by unusual noises or steering concerns.

Why does my Subaru shake when I turn completely?

One of the most common causes of steering wheel vibration in a Subaru is worn or unbalanced tires. As tires wear down or become unbalanced, they can cause vibrations that are felt through the steering wheel.

Why does my car shake when I make a turn?

A car that shakes when turning can be caused by issues with the tires, steering, or suspension system. Common culprits include unbalanced wheels, low power steering fluid, worn ball joints or CV joints, or damaged wheel bearings. A mechanic can properly diagnose and fix the problem, which is especially important to do quickly as some issues can affect steering control.
 
You can watch this video to learn about common car vibrations and their causes: 57sThe Car Care NutYouTube · Feb 14, 2024
Steering and suspension

• Low power steering fluid: Insufficient fluid can cause the system to lose pressure, leading to vibrations, especially during slow turns. 
• Failing power steering pump: A worn pump can't supply consistent pressure, which can cause shaking or stiffness when turning. 
• Worn or loose steering components: Worn ball joints, tie rod ends, or other steering parts can cause play in the steering system, resulting in shaking. 
• Worn wheel bearings: A damaged or worn wheel bearing can cause a shaking or grinding noise that may become more pronounced when turning. 
• Damaged CV joints: Worn Constant Velocity (CV) joints are a common cause of clicking and shaking when turning. 
• Worn shocks or struts: If these components are worn out, you may feel more vibrations from the road, especially when turning or driving over bumps. 

Tires and wheels

• Unbalanced wheels: If your wheels are not properly balanced, they can cause vibrations that are felt in the steering wheel, particularly during turns. 
• Misaligned wheels: Poor wheel alignment can also cause shaking and uneven tire wear. 
• Tire damage or low pressure: Damaged tires or incorrect tire pressure can lead to vibrations and unsafe driving conditions. 

This video demonstrates how to identify tire issues that cause steering wheel vibrations: 58sGerard BurkeYouTube · Mar 26, 2023
Other potential causes

• Worn brake pads or rotors: In some cases, warped or worn brake rotors can cause vibrations that you feel in the steering wheel. 
• Engine or transmission issues: Problems with the engine mounts or transmission can cause vibrations throughout the car, including when turning. 

How to tell if a Subaru CVT transmission is bad?

If you have noticed delayed acceleration, shuddering, or a high-pitched whining sound, your Subaru's CVT may need attention.

What is the most common issue with Subaru?

The most common Subaru problems include issues with head gaskets, oil consumption, and transmission problems, particularly with older EJ engines and certain first-generation CVTs. Other frequent issues involve timing belt failures, electrical faults, and suspension wear. Many of these issues are more prevalent in specific older model years, though newer models can still experience problems like transmission wear.
 
This video discusses common issues with Subaru engines and transmissions: 58sThe OCD RepairmanYouTube · Jul 7, 2025
Engine and powertrain problems 

• Head gasket leaks: This is a notorious issue, especially in older models with EJ series engines, and can lead to coolant leaks, overheating, and other engine damage. 
• Engine oil consumption: Some models consume excessive oil, often due to worn piston rings or valve seals. 
• Timing belt failures: A failing timing belt can cause severe engine damage, and replacement should be done according to the manufacturer's schedule. 
• Transmission problems: Issues like slipping gears or rough shifting have been reported, particularly in some first-generation Lineartronic CVTs and certain models with higher torque loads. 

Other common issues

• Electrical issues: Various components can have faults, including sensors, alternators, and starters. 
• Suspension problems: Suspension components can wear out over time, leading to excessive noise, vibration, and poor handling. 
• Defective airbags: Some model years have had issues with airbags. 
• Faulty fuel pumps: Problems with fuel pumps have been reported in some models. 
• Weak windshields: Some owners have complained about the durability of the windshields. 

Tips to mitigate problems

• Perform regular maintenance: Consistent oil changes, fluid checks, and other scheduled maintenance can help prevent many issues and extend engine life. 
• Replace the timing belt on schedule: Adhering to the manufacturer's recommended timing belt replacement interval is crucial to avoid catastrophic engine damage. 
• Be mindful of specific model years: Researching specific model years for known problems can help you make a more informed decision, especially when buying used.