Several Toyota and Lexus models have come under scrutiny after owners have reported major battery flaws, with some people getting trapped inside their vehicles in the worst cases. Research conducted by Which?, an independent consumer rights organization in the United Kingdom, shows that hundreds of owners are affected by the battery problem. We managed to find a few consumer complaints in the United States, too, so the problem isn’t confined to the UK.
12V Battery Faults Hit Several Toyota and Lexus Models
In the Which? report, the organization found that 12V batteries in certain models can drain prematurely. When these batteries fail, they can prevent an occupant from opening the car door. That’s because the internal/external handles don’t open the door directly. Rather, they engage an electric motor which does the job; this is known as an e-Latch. If the motor can’t draw power from a dead battery, the door can’t be opened.
Mary Mitchell, one owner of a Lexus LBX (a small crossover sold in other markets), found herself in a situation where her grandchildren were trapped inside the vehicle. The retracting external door handles didn’t operate and the kids inside were unable to operate the manual override function inside the car. The key fob includes a mechanical key, but it was inside the vehicle at the time.
“The children were panicking and it was extremely stressful,” said Mitchell. “We eventually managed to get a window open and get the children out.”
In another case, the owner of a Lexus NX had to break a window on his vehicle after two adults and two dogs became trapped inside. Nobody was aware of the manual door release. Another owner of a Lexus RX had six 12V battery problems in the first year.
The NX, RZ and RX were named as being among the affected models. From Toyota, the C-HR, Corolla, Yaris, and Yaris Cross received the most battery-related complaints, based on a survey of 63,334 respondents.
U.S.-Spec Lexus Models Also Affected
Although the door handle issues don’t appear to be as widespread in the U.S. market, we uncovered a few instances where customers here have run into exactly the same problem. As recently as July 9, the owner of a 2025 Lexus NX said the door’s electronic hatch will occasionally malfunction. If that happens, the only way to open the door is to “pull very hard on the door to close it again or get someone to push on the outside of the door.”
That’s not always a viable solution, as a weaker or older driver may not have the strength to pull hard enough to close the door. Interestingly, this customer did not directly mention a battery fault.
Another owner of a 2025 Lexus NX in California did directly mention the 12V battery. In this case, which was published on the NHTSA site, the owner was trapped inside the vehicle for 45 minutes. Without his phone, he only got out by using the horn to alert his wife. Even then, the couple still had to call Lexus Roadside Assistance. The Lexus dealer only said the car should be “driven more often to keep the 12V battery charged.”
We found a Reddit thread that was started by a Toyota master diagnostic technician, who said "Toyota is aware of the [12V issue] and is trying to investigate." Many customers responded with experiences of 12V battery failures.
Related: Toyota May Have Found A Better Way To Do Flush Door Handles
Toyota and Lexus Respond
Manual door mechanism in a Lexus
Lexus
In the UK, Toyota and Lexus both acknowledged that a 12V battery could prevent smart entry and other electrical systems from working as they should. This month, both brands published an advisory on what customers should do if the vehicle can’t be unlocked. It includes the location and operation of manual door releases, but these mechanisms vary from model to model. In the case of select Lexus models, a mechanical door lever must be pulled towards you twice.
“We are particularly concerned by reports of customers feeling distressed or vulnerable as a result of a depleted battery, including incidents where occupants have experienced difficulty operating electronic door-release systems,” said Toyota/Lexus. “Customer safety remains our highest priority, and we recognize the importance of ensuring customers are familiar with the manual override features fitted to these vehicles.”
Autoblog’s Take
2026 Toyota C-HR
Cole Attisha
These Toyota and Lexus reports again raise concerns around needlessly complex technologies. Electronic door handles—and particularly flush door handles—have already been banned in China as of 2027, with clear rules around making manual door releases visible.
The Toyota/Lexus issue is slightly different, as it relates specifically to failing 12V batteries. However, in an emergency where exiting the vehicle as quickly as possible could save your life, the dangers are no less apparent. If you ask us, there is not a single e-Latch benefit for the consumer that justifies the safety risk.
For owners of Lexus or Toyota vehicles equipped with these technologies, we’d recommend familiarizing yourself and your family with your vehicle’s specific manual override door levers. We also recommend regularly checking the health of your 12V battery, especially if your vehicle mainly drives short distances or stands for an extended period of time.
Related: China Has Officially Banned Tesla-Style Flush Door Handles