Complaints & Recalls
Consumer Complaints
3 ComplaintsToyota Motor Corporation
Defect Description:
ELECTRICAL SYSTEM
Potential Consequences:
My 2023 Lexus RZ450e experienced a sudden failure of the 12-volt battery, which completely disabled the vehicle and prevented it from starting. The battery failed while the car was plugged into a Level 2 home charger, but not in ‘Ready’ mode. There were no warning signs or alerts, and I had to call roadside assistance to jump-start the car. After the incident, I brought the vehicle to the dealership. They tested the 12V battery and said it was “fine.” However, during the 100,000-mile maintenance, I specifically requested a battery re-check—and this time, the battery failed the test. This raises serious concerns about the reliability and longevity of the 12V battery in this vehicle, as well as the inconsistent diagnostics at the dealership. If the vehicle had failed to start while I was away from home, I could have been stranded in unsafe conditions. Safety Concerns: The 12-volt battery powers essential systems, including door locks, ignition, and electronic control units. Its failure disables the entire vehicle. The fact that this happened while the car was plugged in, but not in “Ready” mode, suggests a potential design flaw or charging system issue. I’ve also seen reports from other RZ450e owners experiencing similar 12V problems, which may point to a broader systemic issue. Requested Action: Please investigate potential defects in the 12-volt battery system and whether the Lexus RZ450e’s charging system fails to maintain battery health during regular use.
Corrective Action:
My 2023 Lexus RZ450e experienced a sudden failure of the 12-volt battery, which completely disabled the vehicle and prevented it from starting. The battery failed while the car was plugged into a Level 2 home charger, but not in ‘Ready’ mode. There were no warning signs or alerts, and I had to call roadside assistance to jump-start the car. After the incident, I brought the vehicle to the dealership. They tested the 12V battery and said it was “fine.” However, during the 100,000-mile maintenance, I specifically requested a battery re-check—and this time, the battery failed the test. This raises serious concerns about the reliability and longevity of the 12V battery in this vehicle, as well as the inconsistent diagnostics at the dealership. If the vehicle had failed to start while I was away from home, I could have been stranded in unsafe conditions. Safety Concerns: The 12-volt battery powers essential systems, including door locks, ignition, and electronic control units. Its failure disables the entire vehicle. The fact that this happened while the car was plugged in, but not in “Ready” mode, suggests a potential design flaw or charging system issue. I’ve also seen reports from other RZ450e owners experiencing similar 12V problems, which may point to a broader systemic issue. Requested Action: Please investigate potential defects in the 12-volt battery system and whether the Lexus RZ450e’s charging system fails to maintain battery health during regular use.
Additional Notes:
My 2023 Lexus RZ450e experienced a sudden failure of the 12-volt battery, which completely disabled the vehicle and prevented it from starting. The battery failed while the car was plugged into a Level 2 home charger, but not in ‘Ready’ mode. There were no warning signs or alerts, and I had to call roadside assistance to jump-start the car. After the incident, I brought the vehicle to the dealership. They tested the 12V battery and said it was “fine.” However, during the 100,000-mile maintenance, I specifically requested a battery re-check—and this time, the battery failed the test. This raises serious concerns about the reliability and longevity of the 12V battery in this vehicle, as well as the inconsistent diagnostics at the dealership. If the vehicle had failed to start while I was away from home, I could have been stranded in unsafe conditions. Safety Concerns: The 12-volt battery powers essential systems, including door locks, ignition, and electronic control units. Its failure disables the entire vehicle. The fact that this happened while the car was plugged in, but not in “Ready” mode, suggests a potential design flaw or charging system issue. I’ve also seen reports from other RZ450e owners experiencing similar 12V problems, which may point to a broader systemic issue. Requested Action: Please investigate potential defects in the 12-volt battery system and whether the Lexus RZ450e’s charging system fails to maintain battery health during regular use.
Mfg Campaign: 11660591
Recall Date: May 13, 2025
Toyota Motor Corporation
Defect Description:
ELECTRICAL SYSTEM
Potential Consequences:
The contact owns a 2024 Lexus RZ 300E. The contact stated that while the vehicle was parked and charging, the heater was activated and failed to function and provide heat as needed. The contact stated that the charging system intermittently failed to charge as needed. The contact stated that there was an hour-and-a-half delay for a full charge. The vehicle was taken to the dealer but was not diagnosed or repaired. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 35,620.
Corrective Action:
The contact owns a 2024 Lexus RZ 300E. The contact stated that while the vehicle was parked and charging, the heater was activated and failed to function and provide heat as needed. The contact stated that the charging system intermittently failed to charge as needed. The contact stated that there was an hour-and-a-half delay for a full charge. The vehicle was taken to the dealer but was not diagnosed or repaired. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 35,620.
Additional Notes:
The contact owns a 2024 Lexus RZ 300E. The contact stated that while the vehicle was parked and charging, the heater was activated and failed to function and provide heat as needed. The contact stated that the charging system intermittently failed to charge as needed. The contact stated that there was an hour-and-a-half delay for a full charge. The vehicle was taken to the dealer but was not diagnosed or repaired. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 35,620.
Mfg Campaign: 11640583
Recall Date: Feb 4, 2025
Toyota Motor Corporation
Defect Description:
SEAT BELTS
Potential Consequences:
This evening upon driving home my 2.5 year old son began crying. When I investigated, he was crying because his car seat had turned over on its side. When we arrived home I tested the rear seat belts and none remain locked; therefore his seat was not secured. Please advise how this can be fixed as soon as possible as it is not safe for us to use the vehicle until this is addressed.
Corrective Action:
This evening upon driving home my 2.5 year old son began crying. When I investigated, he was crying because his car seat had turned over on its side. When we arrived home I tested the rear seat belts and none remain locked; therefore his seat was not secured. Please advise how this can be fixed as soon as possible as it is not safe for us to use the vehicle until this is addressed.
Additional Notes:
This evening upon driving home my 2.5 year old son began crying. When I investigated, he was crying because his car seat had turned over on its side. When we arrived home I tested the rear seat belts and none remain locked; therefore his seat was not secured. Please advise how this can be fixed as soon as possible as it is not safe for us to use the vehicle until this is addressed.
Mfg Campaign: 11628087
Recall Date: Nov 30, 2024
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