2001 Toyota Prius — Known Issues & Recalls

While exiting the freeway at 40 mph, your car suddenly turned sharply to the left on its own. When you tried to steer it back straight, the steering wheel resisted your efforts with excessive force, making it impossible to correct. Your car hit a concrete barrier, spun 360 degrees, and hit the barrier again with the rear bumper. This steering malfunction caused a crash and may involve replacing or repairing the steering column, power steering pump, or related steering components.

While driving onto a freeway, your steering wheel shook violently and warning lights appeared on your dashboard. After shutting the vehicle off, the warning cleared temporarily, but the violent shaking returned when you drove to the dealer. You discovered online that a recall exists for a faulty power steering sensor causing this exact problem, but your vehicle's VIN falls outside the recall range, so the dealer won't cover the $4,000 repair under warranty. The fix will likely involve replacing the faulty power assist steering sensor and possibly the entire power steering control unit.

Your car has an open steering recall, but when you contacted Toyota about getting it fixed, they told you they couldn't perform the repair. According to Toyota's records online, the recall should be valid for 10 years from the original recall date.

While driving at 65 mph, your steering wheel suddenly shook violently without any warning. The problem occurred at 143,000 miles and was not repaired or reported to Toyota. Violent steering wheel shake at highway speeds typically requires inspection of wheel balance, suspension components, or steering system parts.

Your power steering warning light is illuminated on the dashboard, and your car won't start. The vehicle is currently parked in your driveway. This could indicate an electrical or power steering system problem that's preventing the engine from starting.

Your steering wheel became stiff while turning left, and your power steering warning light came on. This happened at about 13,620 miles and hasn't been diagnosed or repaired yet. The issue likely involves the power steering system and may need inspection of the pump, fluid, or related components.

Your car's steering wheel shakes and the power steering cuts out intermittently, making steering difficult. The dealer says the entire rack and pinion assembly needs replacement, and they may also recommend replacing the torque sensor. The steering system may need a complete overhaul or sensor replacement to resolve the loss of power steering.

You received a recall notice for your 2001 Toyota Prius regarding the electric power steering system. After contacting an authorized Toyota dealer, you were told they would need to inspect your vehicle first before deciding if repairs are necessary—even though the recall notice suggested the dealer should repair it if your car is affected. Toyota offered no additional help with the situation.

Your brakes completely failed while driving. A shop diagnosed the problem as a faulty turbo brake booster. The brake booster is what helps amplify your foot pressure on the brake pedal, so when it fails, your brakes won't work properly. Replacing the brake booster should restore normal braking function.

Your brake pedal went all the way to the floor while someone was driving your car, and the ABS, traction control, and brake warning lights came on. The brakes had very little stopping power left, even when pumping the pedal, though the driver was able to slowly bring the car to a stop. The issue likely involves inspecting and possibly replacing brake fluid, brake pads, or the brake master cylinder.

While backing up slowly in a parking lot, your car suddenly accelerated on its own in reverse and hit a wall, deploying the airbags. The car then shifted itself into drive and accelerated again into another wall, deploying airbags a second time and injuring the driver. This unintended acceleration issue appears to be a recurring problem with this model.

Your accelerator pedal is experiencing intermittent resistance that suddenly makes your car slow down dramatically, requiring you to press much harder to maintain speed. In one instance, the pedal stopped responding entirely while you were on the highway and the car wouldn't accelerate no matter how hard you pressed. Despite replacing the accelerator pedal twice, the problem persists and occurs randomly without warning, creating a serious safety concern since you can lose acceleration at any time. The issue may involve the electronic throttle control system or sensor rather than just the pedal itself, which is why replacing the pedal alone hasn't resolved it.

While driving at 20 mph, your car suddenly lost all engine power and brake function without any warning, causing you to cross the median and crash into a pole. The airbags deployed and a police report was filed, though no one was injured. The issue likely involves the electrical system failing to supply power to the engine and brakes simultaneously, and diagnosis will require a full electrical system inspection and engine diagnostics at a Toyota dealer.

While driving on the freeway at 65+ mph, your car suddenly lost all power without warning and the check hybrid warning light came on, making it dangerously unresponsive. The problem is caused by a faulty accelerator pedal position sensor that tells the hybrid system how much throttle you're requesting—when this sensor fails, both the gas and electric engines shut down. The fix involves replacing the accelerator pedal position sensor assembly.

While driving at 50 mph, your brakes suddenly failed without warning — the brake pedal sank to the floor with no stopping power. You crashed into another vehicle, but the airbag did not deploy during the collision. The vehicle was towed for inspection after the incident. Addressing this will require a complete brake system inspection and likely replacement of brake components, plus an airbag system diagnostic.

Your car caught fire while parked in your garage for about 6 hours. The headlights were on when you discovered it, and opening the door caused the smoldering fire to suddenly flare up, melting the dashboard and cracking the windshield from the heat. The fire department extinguished it, but the exact cause of the fire remains unknown, though it may have been related to an electrical short that activated the headlights. An inspection of the electrical system and wiring would be needed to identify what triggered the fire.

Your car suddenly accelerated on its own without you pressing the gas pedal and wouldn't slow down until you hit the brakes. A Toyota dealer replaced the gas pedal for over $600, but the same problem happened again within a year. You believe this was a defect, but Toyota claimed it was caused by floor mats and denied your claim. The fix involved replacing the gas pedal assembly, though the root cause of the recurring acceleration issue may need further diagnosis.

Your power steering system is acting up intermittently—when you're driving, the steering wheel shakes and an error message appears saying there's a power steering problem, but then it clears and says it's fixed. This happens off and on, sometimes lasting longer than other times. You're concerned because the previous owner may have had a recall service done on the power steering unit, but the problem is still occurring. You'll likely need a dealer or mechanic to diagnose the power steering system and determine if the previous recall repair is failing or if a new issue has developed.

Your Prius engine sometimes won't start on the first try, and when this happens, the computer gives up trying and leaves you running only on battery power — which is dangerous in traffic or on highway ramps. The problem is caused by a dirty air intake flap that sticks, preventing the engine from starting. You can temporarily fix it by pulling over, turning off the car, and restarting it. The air intake flap should be cleaned during regular maintenance to prevent this issue.

Both of your rear wheel hub assemblies failed and had to be replaced before your car reached 90,000 miles. When these hubs fail, you can't just replace the bearings—you have to replace the entire hub assembly, which includes the ABS sensor attached to it. You're now worried the same thing might happen to your 2002 Prius. The repair involves replacing the complete rear axle hub assembly with a new one.