Subaru BRZ wheel hub bolts may loosen and risk wheel detachment on Subaru BRZ

Some Subaru BRZ owners report experiencing issues with wheel hub bolts loosening over time, which poses a risk of wheel detachment while driving. If these bolts are under-torqued or deformed, they may break during operation, leading to excessive load on the remaining bolts and a potential partial loss of vehicle control. Additionally, the new GR86/BRZ model employs a different wheel attachment system compared to the bZ4X/Solterra, which could create confusion regarding maintenance. Owners also report risks associated with lug nuts, particularly if they are not tightened properly or are unevenly tightened, especially if the mating surface of the wheel rim becomes deformed. To mitigate these risks, it is crucial for owners to ensure that wheel hub bolts are properly torqued and regularly inspected for signs of loosening or damage. If issues arise, it is advisable to have the bolts checked and replaced by authorized dealers to maintain vehicle safety and integrity. Furthermore, replacing wheel studs may require removing the entire knuckle and pressing out the hub, which could damage the wheel bearing and necessitate its replacement. Maintaining the proper torque and condition of wheel hub bolts is essential for preventing wheel detachment and ensuring safe vehicle operation.