This Problem Across All Years
On June 20, 2025, my 2023 Toyota Tacoma (VIN [XXX] ed a sudden loss of effective braking during normal driving conditions (dry roadway, clear weather). The vehicle was being driven by my adult son. While slowing for a turn, the instrument cluster displayed a Pre-Collision System (PCS) malfunction warning and a Vehicle Stability Control (VSC) warning. The Driver applied the brake pedal continuously, but the vehicle did no decelerate as expected. ABS did not activate, and braking effectiveness was insufficient. During braking, the driver experienced reduced steering responsiveness. In order to avoid entering a busy roadway without adequate braking capability, the driver applied maximum steering input, fully loading the left side of the steering wheel with as much force as possible in an attempt to redirect the vehicle. Any reduction in speed occurred primarily due to the change in direction and tire to road friction, not effective braking. The vehicle was towed to a Toyota dealership. Dealer intake records document a PCS warning and no brakes upon arrival. Event Data Recorder (EDR/CDR) data shows continuous brake pedal application for approximately 5 seconds prior to the event, accelerator at 0%, and brake system hydraulic pressure reaching approximately 12.14 MPa (maximum recorded). Despite this, the vehicle did not stop as expected. No frontal crash pulse recorded. Toyota Motor North America later denied responsibility, asserting incorrect vehicle speed and stating that a CARFAX report indicated prior front-end damage. The CARFAX vehicle history report, dealer purchase disclosures, and service records show no reported accidents or damage. Toyota declined to provide brake system ECU logs (ABS/VSC/brake control modules). This incident raises concerns regarding a potential safety defect involving electronically controlled braking and its interaction with PCS stability control systems. Supporting documentation available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5
On June 20, 2025, my 2023 Toyota Tacoma (VIN [XXX] ed a sudden loss of effective braking during normal driving conditions (dry roadway, clear weather). The vehicle was being driven by my adult son. While slowing for a turn, the instrument cluster displayed a Pre-Collision System (PCS) malfunction warning and a Vehicle Stability Control (VSC) warning. The Driver applied the brake pedal continuously, but the vehicle did no decelerate as expected. ABS did not activate, and braking effectiveness was insufficient. During braking, the driver experienced reduced steering responsiveness. In order to avoid entering a busy roadway without adequate braking capability, the driver applied maximum steering input, fully loading the left side of the steering wheel with as much force as possible in an attempt to redirect the vehicle. Any reduction in speed occurred primarily due to the change in direction and tire to road friction, not effective braking. The vehicle was towed to a Toyota dealership. Dealer intake records document a PCS warning and no brakes upon arrival. Event Data Recorder (EDR/CDR) data shows continuous brake pedal application for approximately 5 seconds prior to the event, accelerator at 0%, and brake system hydraulic pressure reaching approximately 12.14 MPa (maximum recorded). Despite this, the vehicle did not stop as expected. No frontal crash pulse recorded. Toyota Motor North America later denied responsibility, asserting incorrect vehicle speed and stating that a CARFAX report indicated prior front-end damage. The CARFAX vehicle history report, dealer purchase disclosures, and service records show no reported accidents or damage. Toyota declined to provide brake system ECU logs (ABS/VSC/brake control modules). This incident raises concerns regarding a potential safety defect involving electronically controlled braking and its interaction with PCS stability control systems. Supporting documentation available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5
The contact owns a 2023 Toyota Tacoma. The contact stated that while the vehicle was being serviced, the contact was informed that the rack and pinion needed to be replaced due to an oil leak. The vehicle was repaired. The contact stated that on a separate occasion, while driving at an undisclosed speed, the speedometer gauge failed to function as intended. The vehicle was taken back to the dealer, and the contact was informed that the instrument panel had a factory defect. The vehicle was repaired. In addition, the contact was informed that the rear axle needed to be replaced. The vehicle was repaired. The contact stated that the rack and pinion recently failed. The contact stated that the vehicle veered to the right and the left independently while driving with an abnormal sound coming from the vehicle. The vehicle was not diagnosed or repaired after the most recent failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.
The contact owns a 2023 Toyota Tacoma. The contact stated that while the vehicle was being serviced, the contact was informed that the rack and pinion needed to be replaced due to an oil leak. The vehicle was repaired. The contact stated that on a separate occasion, while driving at an undisclosed speed, the speedometer gauge failed to function as intended. The vehicle was taken back to the dealer, and the contact was informed that the instrument panel had a factory defect. The vehicle was repaired. In addition, the contact was informed that the rear axle needed to be replaced. The vehicle was repaired. The contact stated that the rack and pinion recently failed. The contact stated that the vehicle veered to the right and the left independently while driving with an abnormal sound coming from the vehicle. The vehicle was not diagnosed or repaired after the most recent failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,000.
The contact owns a 2023 Toyota Tacoma. The contact stated that while the vehicle was receiving maintenance by a local dealer, the technician became aware of a leak coming from the steering wheel. The technician stated that he needed to verify the vehicle a second time to confirm if the failure was a manufacturer’s defect. The vehicle was not repaired and remained with the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 35,000.
The contact owns a 2023 Toyota Tacoma. The contact stated that while the vehicle was receiving maintenance by a local dealer, the technician became aware of a leak coming from the steering wheel. The technician stated that he needed to verify the vehicle a second time to confirm if the failure was a manufacturer’s defect. The vehicle was not repaired and remained with the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 35,000.
The contact owns a 2023 Toyota Tacoma. The contact stated that while reversing, the RPM and engine surged while turning the steering wheel. There were no warning lights illuminated. The vehicle was taken to the local dealer, who informed the contact that there was no coverage for the failure of the vehicle. The vehicle was not diagnosed or repaired. The contact related the failure to TSB: 0125-18. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 300.
The contact owns a 2023 Toyota Tacoma. The contact stated that while reversing, the RPM and engine surged while turning the steering wheel. There were no warning lights illuminated. The vehicle was taken to the local dealer, who informed the contact that there was no coverage for the failure of the vehicle. The vehicle was not diagnosed or repaired. The contact related the failure to TSB: 0125-18. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 300.
When starting the truck and warming up a minute or so and then putting in reverse to back out or forward to pull into a carport, idling in gear with your foot only on the brake, the engines surges/revs up with just the slight turn of the steering wheel causing an unintended speed increase. I believe that this could cause a minor accident. It does not appear to be caused by the engine having a fast idle when cold as the idle drops when you shift into a gear. What appears to be happening is the ECU over compensates for the slight strain caused by the power steering pump when you turn the wheel. My carport is narrow and does not align exactly with the driveway, you have to jog left a foot or two and then right to pull in or back out. At the second service visit on 12/12/23 the dealer then checked and observed this behavior and reported "This is normal operation and directly related to power steering pump activation when wheel is turned in any direction" The vehicle was purchased new last May and currently has 3,995 miles on it. I think it probably had this problem from new but I had mostly just pulled straight in and out of the driveway until the fall when it was mostly parked in the carport as it was not being driven as regularly. I don't think it does it as bad when fully warmed up which takes quite a while for this engine.
When starting the truck and warming up a minute or so and then putting in reverse to back out or forward to pull into a carport, idling in gear with your foot only on the brake, the engines surges/revs up with just the slight turn of the steering wheel causing an unintended speed increase. I believe that this could cause a minor accident. It does not appear to be caused by the engine having a fast idle when cold as the idle drops when you shift into a gear. What appears to be happening is the ECU over compensates for the slight strain caused by the power steering pump when you turn the wheel. My carport is narrow and does not align exactly with the driveway, you have to jog left a foot or two and then right to pull in or back out. At the second service visit on 12/12/23 the dealer then checked and observed this behavior and reported "This is normal operation and directly related to power steering pump activation when wheel is turned in any direction" The vehicle was purchased new last May and currently has 3,995 miles on it. I think it probably had this problem from new but I had mostly just pulled straight in and out of the driveway until the fall when it was mostly parked in the carport as it was not being driven as regularly. I don't think it does it as bad when fully warmed up which takes quite a while for this engine.
The contact owns a 2023 Toyota Tacoma. The contact received notification of NHTSA Campaign Number: 23V480000 (Steering) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
The contact owns a 2023 Toyota Tacoma. The contact received notification of NHTSA Campaign Number: 23V480000 (Steering) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Experience steering wheel vibrations between speeds of 60 mph and 80 mph - have taken vehicle to dealership and they have confirmed problem but said it was a characteristic condition of the suspension on vehicle. It is highly distracting when operating a motor vehicle at freeway speeds and with out warning the steering wheel starts shaking back and forth. Dealership has rebalanced and rotated tires 5 times and performed vehicle alignment - recently they changed the tire and loading information decal which changed the air pressure from 36psi down to 29 psi (did not tell me about that) vehicle rides better but steering wheel vibration still happens unannounced at speeds between 60 mph & 80 mph.
Experience steering wheel vibrations between speeds of 60 mph and 80 mph - have taken vehicle to dealership and they have confirmed problem but said it was a characteristic condition of the suspension on vehicle. It is highly distracting when operating a motor vehicle at freeway speeds and with out warning the steering wheel starts shaking back and forth. Dealership has rebalanced and rotated tires 5 times and performed vehicle alignment - recently they changed the tire and loading information decal which changed the air pressure from 36psi down to 29 psi (did not tell me about that) vehicle rides better but steering wheel vibration still happens unannounced at speeds between 60 mph & 80 mph.