2017-2020 Tesla Model 3 Suspension: Noises, Control Arm Failures, and Recalls

The 'Active Suspension' Misconception

A common point of confusion for owners is whether the 2017-2020 Tesla Model 3 has an adjustable or 'active' suspension. These models do not have an active or air suspension system from the factory. They are all equipped with a standard, fixed-height coil spring and shock absorber system. Features like adjustable ride height or selectable damping modes (Comfort, Sport) were not introduced on the Model 3 until the 'Highland' refresh for Performance models in 2024. Therefore, there is no 'Active Suspension Control Module' to replace on a 2017-2020 Model 3.

If you are searching for this part, you are likely experiencing a suspension-related issue, such as a noise or a warning message on the touchscreen. This guide covers the actual common failures and what to do about them.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

While the suspension system is generally robust, some common issues and factory communications apply to these model years.

Recall: Front Suspension Lateral Link Fasteners

NHTSA Recall #: 21V835000 (later expanded by 23V-235)
Vehicles Affected: Certain 2018-2021 Tesla Model 3 vehicles.

This recall addresses an issue where the two fasteners securing the front suspension lateral link to the sub-frame could loosen over time. A loose lateral link can cause the wheel alignment to shift, leading to instability, abnormal noises, and an increased risk of a collision. Tesla Service will inspect the fasteners and tighten or replace them as needed, free of charge. A key warning sign you can detect is an abnormal noise coming from the front suspension.

TSB: Suspension/Alignment Warning Message

Bulletin #: SB-25-31-004

Tesla introduced a diagnostic feature via a firmware update that continuously monitors for changes in wheel alignment. If the system detects drift that could indicate worn bushings, loose ball joints, or other suspension problems, it will display a 'Service Required' message on the touchscreen. This warning is preventative and can be triggered even if you don't feel a problem while driving. It is designed to catch issues early before they cause significant tire wear or handling problems. If you see this alert, a physical inspection of the suspension components is required.

Common Failure: Control Arms

The most widely reported suspension issue on the 2017-2020 Model 3 is the premature failure of control arm bushings and ball joints, particularly the front upper control arms. The vehicle's heavy weight and instant torque from the electric motor put significant stress on these components.

Symptoms of Failing Control Arms

Diagnosing a failing control arm usually starts with listening for specific noises.

• Squeaking or Creaking: A noise often described as a creak, squeak, or even a 'duck call' when turning the steering wheel at low speeds or going over bumps is a classic sign of a failing front upper control arm ball joint. This is often caused by moisture getting past the seal, contaminating the grease, and causing corrosion.
• Clunking or Knocking: A clunking or crunching sound, especially during acceleration or braking, often points to failed front lower control arm bushings. When the rubber bushing tears, it allows for metal-on-metal contact between the arm and the subframe.
• Sloppy or Vague Steering: If the steering feels loose, wanders at highway speeds, or requires constant small corrections, it's a strong indicator of worn bushings that can no longer hold the wheel in proper alignment.
• Uneven Tire Wear: A visual sign of a bad control arm or bushing is accelerated wear on the inner edge of the front tires. This happens because the worn components can no longer maintain the correct alignment settings.

Buying a Used Suspension Component

Since the primary failures are mechanical, buying a used OEM suspension component like a control arm, knuckle, or shock assembly can be a cost-effective solution. However, these are high-wear items, so careful inspection is critical.

• Inspect Bushings and Ball Joints: This is the most important step. For a control arm, check the rubber bushings for any cracks, tearing, separation from the metal sleeve, or signs of leaking fluid. The ball joint boot should be intact with no rips or leaks. The joint itself should be firm with no excessive play.
• Check for Damage: Inspect the component for any signs of bending, cracking, or heavy corrosion, which could indicate it came from a vehicle involved in a collision. Do not buy a bent control arm.
• Verify Part Numbers: Tesla has released several revised versions of the front upper control arms to address the squeaking issue. When possible, try to get the latest revision. Common part numbers for the front upper right control arm include 1044326-00-H, 1044326-00-J, and 1188326-10-A. Always verify compatibility with the specific vehicle's VIN.
• Mileage Considerations: Failures are commonly reported starting around 40,000 miles. A used part from a low-mileage vehicle is a much safer bet than one from a car with 80,000+ miles, as it will likely have more remaining service life.

Cost to Repair Tesla Model 3 Suspension Issues

Frequently Asked Questions (FAQ)