Upper Control Arm Failure
ModerateSuspension & ChassisSharing its front suspension with the Model 3, the Model Y is also prone to squeaking upper control arms as water ingress degrades the ball joint grease.
The 2023 Model Y benefited from the "Comfort Suspension" introduced from February 2023, which significantly improved the ride quality by softening spring rates and increasing top support stiffness. Boot water ingress was reduced on later builds, and the January 2023 price drop made these excellent value.
Sharing its front suspension with the Model 3, the Model Y is also prone to squeaking upper control arms as water ingress degrades the ball joint grease.
Water can enter the rear trunk through the liftgate assembly or tail light seals due to inadequate sealant application during manufacturing.
Some owners report a low-frequency pressure or booming noise when driving, often traced to the rear hatch vibrating or not being seated correctly on its stops.
Moisture ingress into the rear tail light units is common, particularly in the UK's damp climate, which can eventually damage internal circuitry.