2017-2026 Tesla Model 3 & Model Y Control Arms: Decoding Squeaks, Clunks, and Recalls

Symptoms of a Failing Control Arm

Failures in the Tesla Model 3 and Model Y control arms typically manifest as distinct noises and handling issues. Identifying the specific sound can help pinpoint which component is failing.

Creaking or Squeaking When Turning (aka the "Duck Call")

A loud creaking, squeaking, or groaning noise, often compared to a duck call, is the most notorious symptom of a failing front upper control arm. This noise is most prominent at low speeds, such as when navigating a parking lot or turning the steering wheel while stationary. The sound is caused by water and debris penetrating the ball joint seal, which washes out the grease and leads to corrosion and metal-on-metal contact. This issue is especially common in colder weather.

Clunking or Crunching Over Bumps or During Braking

A clunking, popping, or crunching sound often points to worn-out bushings in the lower control arms. You may hear a clunk when going over bumps, or a crunching noise during acceleration and braking as the worn bushing allows for excess movement. If the front lower control arm (also called the lateral link) fasteners are loose, you may also hear a persistent clunking as the arm moves around.

Sloppy or Vibrating Steering

Worn control arm bushings or ball joints can lead to a loose, imprecise, or wandering steering feel. You might feel vibrations through the steering wheel, especially as speed increases. The vehicle may also pull to one side, requiring constant steering correction to drive in a straight line. This indicates that the wheel alignment has been compromised due to the failing component.

Uneven Tire Wear

A failing control arm will disrupt the vehicle's wheel alignment, leading to premature and uneven tire wear. If you notice the inside or outside edge of your front tires wearing down much faster than the rest of the tread, it's a strong sign that a suspension component, like a control arm, needs to be inspected immediately.

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

Control arm issues are well-documented for the 2017-2023 Model 3 and 2020-2023 Model Y. Tesla has issued both a TSB for the noise issue and a recall for a more serious safety concern.

TSB for Squeaky Front Upper Control Arms (SB-20-31-006)

In response to widespread complaints about the creaking noise from the front upper control arms, Tesla issued Technical Service Bulletin SB-20-31-006. The bulletin acknowledges that water can get into the ball joints, causing corrosion and noise. The official fix is not to replace the arm, but to reseal the area around the ball joints with urethane to prevent further water intrusion. While Tesla states this is only a noise, vibration, and harshness (NVH) issue and not a safety failure, many owners opt to replace the arms entirely.

Recall for Loose Lateral Link Fasteners (NHTSA 21V-835)

In October 2021, Tesla recalled 2,791 vehicles, including 2019-2021 Model 3 and 2020-2021 Model Ys, for improperly tightened front suspension lateral link fasteners (NHTSA Campaign Number 21V835000; Tesla Recall SB-21-31-003). The recall states that the two fasteners connecting the front lower control arm (lateral link) to the subframe may not have been torqued to the correct specification at the factory. Over time, these bolts can loosen, potentially allowing the arm to separate from the subframe. This can cause a sudden shift in wheel alignment and instability, increasing the risk of a crash. The remedy is for Tesla Service to inspect and tighten the fasteners to the correct specification, free of charge.

Vehicle & Part Compatibility: 2017-2023 vs. 2024+ 'Highland'

The 2017-2023 Tesla Model 3 and 2020-2023 Tesla Model Y are built on the same platform and share their primary suspension components. The most commonly replaced parts are the front upper control arms.

Buying a Used Suspension Control Arm

Purchasing a used OEM control arm can be a cost-effective solution, especially given the high failure rate of these parts. A low-mileage used original part is often superior to a new, cheap aftermarket alternative, which may use lower-quality bushings and ball joints.

• Inspect the Ball Joint Boot: For upper control arms, the most critical inspection point is the rubber boot around the ball joint. It should be pliable, with no cracks, tears, or signs of leaking grease. A compromised boot is the primary cause of failure.
• Check the Bushings: Examine the rubber bushings where the arm mounts to the subframe. Look for any cracks, tearing, or separation of the rubber from the metal sleeve. Torn bushings are the main failure mode for the lower control arms.
• Verify Mileage: Failures typically begin to appear around 40,000 miles and are common by 70,000 miles. A part from a low-mileage vehicle (under 40k) is ideal and likely has significant life remaining.
• Confirm Part Numbers: Tesla frequently revises parts. While newer revisions are generally better, ensure the part number you are buying is compatible with your vehicle's year and model.

Replacement Information

Replacing a control arm is a moderately difficult job that a skilled DIY mechanic can perform. However, it requires proper tools, including a torque wrench and jack stands, and a wheel alignment is highly recommended after the repair.

Torque Specifications

Using a calibrated torque wrench is critical for safety. The recall for loose fasteners highlights the importance of proper torque. These specs are for the front upper control arm on the pre-Highland Model 3 and Y.

Note: Always consult the latest official service manual for your specific vehicle, as procedures and torque specs can change.

Cost to Replace Control Arms

The cost for control arm replacement on a Model 3 or Y can vary. Interestingly, many owners report that the official Tesla Service Center is often the most affordable option, as the company sometimes covers the labor cost as a goodwill gesture even for out-of-warranty vehicles, leaving the owner to pay only for the parts.

Frequently Asked Questions (FAQ)