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What Causes the Rear Wheels to Lock Up When the Handbrake Is Released?

3 Answers
VonClaire
08/29/25 3:08am
1. Reasons for the rear wheels being locked: (1) The handbrake was engaged during car washing, causing water to enter the rear wheels and the brake pads to stick to the brake drums. (2) The handbrake cable is frozen or the brake friction pads are frozen. (3) The brake caliper is damaged or the handbrake cable is rusted and stuck. (4) The brake pads and brake drums are rusted together. 2. Additional tips to prevent freezing, rusting, or damage: (1) In extremely cold weather, avoid using the handbrake; for manual transmission vehicles, engage first gear, and for automatic transmission vehicles, use P (Park) mode. (2) After driving in rainy weather or after washing the car, press the brakes several times to generate heat and evaporate any moisture. (3) Regularly maintain and service your vehicle, as technicians will inspect the braking system for any issues.
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LawsonDella
09/10/25 7:49am
I've found that a common reason for wheels locking up after releasing the handbrake is mechanical component seizure or rust issues. For example, prolonged use without lubrication can cause internal corrosion in the handbrake cables, or the brake caliper pistons in the rear wheels may get stuck and fail to retract. Spring failure is another contributing factor. When encountering this problem, the car will feel difficult to start, with tires making squeaking sounds and prone to wear. My approach is to gently rock the vehicle or apply slight throttle to try releasing the lock, but if ineffective, it's essential to immediately visit a professional repair shop for tool-assisted inspection and component replacement. Otherwise, it could lead to more expensive brake system damage and increased safety risks. Regular maintenance, such as quarterly lubrication of handbrake cables, can prevent such failures.
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StLeila
10/24/25 8:41am
Hey, if the wheels are locked and won't move after releasing the handbrake, it's probably due to improper operation. For example, pulling it too tight when parking on a steep slope, or brake pads sticking to the rotors after long-term parking. Humid weather increases the risk of rust. In this case, don't force it to drive to avoid making it worse. Try pulling the handbrake back and forth a few times to see if it loosens, or ask someone to gently push the car to help release it. Usually, pull the handbrake moderately when parking—don't overdo it. Keep driving regularly to keep the system active, which can reduce the chance of locking up. Remember to do a simple check every month to ensure everything is normal.
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