Tesla Model Y suspension faces issues in both the US and China

In the US, the number affected is small, but the consequences are serious

The US National Highway Traffic Safety Administration (NHTSA) has registered campaign 26V558000, affecting just 19 2026 model-year Model Ys. The cars were built between 26 July and 4 August 2026. The issue concerns the fasteners for the front suspension lower lateral link, whose bolts may not have been tightened to specification.

If a fastener loosens in service, the lateral link could detach from the subframe. This would sharply alter the wheel alignment, impair handling and could result in a loss of control. So while a recall covering 19 vehicles is not statistically large, the potential consequence of the fault is anything but cosmetic.

Tesla will inspect the vehicles at service centres, tighten or replace the fasteners, and check wheel alignment. If necessary, the manufacturer will also replace components damaged by the fault. Tesla will cover the cost of the repair.

The root cause appears to point to the production process rather than a design weakness in the Model Y suspension. This is precisely why it should be distinguished from a separate, much larger US investigation.

NHTSA is already investigating 1.2 million older Teslas

At the end of July, NHTSA opened a preliminary investigation into approximately 1.2 million Teslas. It focuses on the front suspension lower lateral link in 2018-2020 Model 3s and 2021-2023 Model Ys. The agency had received 156 complaints involving the component detaching from the vehicle.

Most drivers received no warning before the failure, although some heard suspension noise beforehand. According to NHTSA, no crashes, injuries or fatalities had been linked to the issue when the investigation was opened. The preliminary investigation is intended to establish the cause, scope and severity of the fault, and could ultimately lead to a recall.

Tesla has recalled vehicles over a similar component before. One 2021 campaign covered around 2,800 Model 3s, while another in 2023 involved 422 Model 3s. However, NHTSA stresses that the cases now under investigation extend beyond the earlier campaigns and do not appear to stem from the same manufacturing defect.

This distinction is important. The fresh recall of 19 new Model Ys and the investigation into 1.2 million older vehicles both concern the front suspension, but based on the information currently available, there is no basis to claim they share the same root cause.

China's Model Y L sags at the rear

In China, the issue is entirely different. Owners of the Model Y L, launched there in August 2025, are reporting rear suspension sagging. The six-seat Model Y L is a larger and heavier family vehicle than the standard Model Y, measuring 4,976 mm long with a 3,040 mm wheelbase and a kerb weight of around 2,088 kg. Its gross vehicle weight reaches 2,651 kg.

Load is what makes the owners' accounts particularly interesting. CarNewsChina compiled cases from Chinese owners in which the gap between the rear tyres and wheel arches decreased noticeably after longer journeys or use with heavier loads. One owner described the issue after only around 9,000 km, with four adults, a child and luggage in the car. Another noticed severe sagging after approximately 30,000 km.

A reduction in rear suspension height is not merely an appearance issue. Owners associate it with changes in wheel alignment, abnormal wear on the inner edges of the tyres, greater body roll and the risk of the underbody striking the ground. In some cases, Tesla has replaced rear springs under warranty.

Tesla China has not yet issued a public technical explanation of the issue. According to owners, service centres use 784 ± 20 mm as the reference when checking rear suspension height, with springs replaced if the measurement falls below 764 mm. Some owners nevertheless claim that the issue returned even after the springs were replaced.

It would therefore be premature to describe the Chinese cases as a proven design defect. Publicly available evidence consists of owner complaints and spring replacements carried out by service centres, but there is no official recall and Tesla has not disclosed the root cause.

The Model Y L places a greater load on its suspension than the standard version

Technically, the Model Y L is not simply a standard Model Y with a third row of seats. Its wheelbase is 3,040 mm, compared with 2,890 mm for the standard Chinese Model Y. The Model Y L has a kerb weight of around 2,088 kg, compared with approximately 1,992 kg for a comparable all-wheel-drive Model Y. In addition, the six-seat vehicle must accommodate a greater passenger and luggage load.

The Model Y L uses independent double-wishbone front suspension and independent multi-link rear suspension. Tesla's own service manual specifies a 428 mm measurement between the wheel hub centre and a body reference point when checking the rear suspension ride height, confirming that the correct ride height is an important parameter for suspension geometry.

If a spring permanently loses height, the result is not limited to a smaller wheel-arch gap. The suspension's static operating position changes, and wheel camber and toe may change with it. This would provide a technically plausible explanation for the tyre wear described by owners. Whether this is what is happening on the Chinese vehicles still requires confirmation from Tesla or a regulator.

European Model Y owners currently have no reason to apply these cases to their own cars

From a European perspective, three things must be kept strictly separate.

The US recall involving 19 vehicles concerns 2026 model-year cars built during a specific period. NHTSA's investigation into 1.2 million vehicles concerns older Model 3 and Model Y vehicles for the US market. The Chinese Model Y L rear suspension cases concern the extended six-seat version, rather than the Model Y commonly sold in Europe.

There is therefore currently no evidence to support a claim that the European Model Y range has the same rear suspension issue described in China.

The story is nevertheless awkward for Tesla because of the broader perception of quality. NHTSA's current investigation into 1.2 million vehicles shows that the question of suspension components detaching is no longer an isolated warranty case for the regulator. Reuters published an extensive investigation in 2023 according to which Tesla had tracked steering and suspension component failures for years.

The Model Y is too important globally for such cases to be dismissed as a minor matter. At the same time, it would be equally misleading to declare the entire Model Y suspension defective based on the information currently available. In the US, there is one very small and specifically defined new recall, one much larger investigation into older cars, and in China a separate dispute involving Model Y L owners. These are three different matters.