2026 Lexus Rz

Went to my car on Saturday @630p to put items in my car for church the next morning. I couldn't get into my car and my car wasn't responding to my key fobs. I called the Lexus service and was closed. I got on my app and called roadside service. As I was walking (pacing) in my garage, I noticed my rear passenger tire was flat! I asked the AAA rep about my tire. He said no replacement was in my car and the tire isn't inflated with air, but foam. Additionally, he noted me not driving the car may have drained my battery. Which was about 73% last I drove it. When he looked at my car and jumped it, he noted my 2nd battery was drained. He didn't know why. He had me leave the car running for an hour after he left. I did and the car turned off automatically after 1 hour. I called both the service department at your location and AAA on Monday morning. On Monday 8/10/2026, I got the car towed and called Gabb6 at the service center. Upon further review, the SOS button is malfunctioning and is killing my battery. Tuesday 8/11/2026, tire will be replaced but there is no solution for the malfunction other than disconnecting the SOS feature, which is a safety hazard in case anything happens. I understand there are multiple vehicles at this moment at the dealership with this issue. This should be recalled as if families with small children or citizens have an issue and connect get to their phones, the SOS feature should be functional.

NHTSA ID

11756176

Incident

Aug 8, 2026

Incident one: I was locked out of my car and needed to call Lexus roadside assistance for help. The technician struggled with the mechanical override to open the car, but was able to force it eventually. He explained the 12V battery was dead. There was nothing left on that would have drained the battery. Incident two: The following week, I was able to enter the vehicle and turn it partially on but was not able to drive the car and after I turned off the power, I was trapped in the vehicle. Lexus roadside assistance came again and jump-started the 12V battery. I left it at the dealership behind another brand new Lexus RZ with the same issue!

NHTSA ID

11756071

Incident

Aug 10, 2026

This a new 2026 electric car with an~80% charge in the traction battery. Unfortunately the 12 V battery failed after I got into the car and closed the car door. Nothing on the car worked including the door locks leaving me trapped. Fortunately I had my phone with me so I could call for assistance. I shudder to think if I had not or if my grand kids had been playing in the car while we weren’t around. . In talking to Lexus roadside assistance something similar had occurred in south Florida that required a 911 call to save the guy inside. This is a serious problem.

NHTSA ID

11755442

Incident

Aug 4, 2026

The Component Affected: Electrical System / Drivetrain Propulsion. The Core Hazard: Systemic software/hardware defect causing a total failure of the 12V auxiliary system, resulting in immediate vehicle blackouts and leaving the vehicle stranded without warning. The Safety Risk: The vehicle leaves passengers and young children completely stranded in high-traffic or unsafe environments. Note that this platform is heavily affected by the active June 18, 2026 electrical system shutdown recall (NHTSA Campaign Number: 26V393), and the unresolved 12V parasitic battery loops present an ongoing safety risk of sudden power loss. The Timeline: State that the vehicle has suffered three consecutive electrical dropouts in less than 2,147 miles, with the first failure documented by a dealer battery replacement at just 12 miles.

NHTSA ID

11748880

Incident

Jul 1, 2026

State of Health (SOH): An estimate of battery health that is updated as the vehicle learns from operating and charging conditions over time. Distance Since Last Update: Indicates the distance accumulated since the last SOH calculation. A default mileage value of 40,727 at SOH 100% may be displayed until sufficient vehicle learning is completed. Once SOH value updates from 100%, the Distance Since Last Update value will re-set to 0 miles. Both SOH and Distance Since Last Update values will continue to update as the vehicle continues to learn.

Some 2026 model year RZ 350e, RZ 450e, and RZ 550e vehicles may exhibit the Diagnostic Trouble Code (DTC) U255221F associated with the level 3 DC fast charging. Under certain conditions, charging may either operate normally or experience failure, with a charging malfunction message displayed on the Multi-Information Display (MID). This condition is attributed to a control logic issue and potential voltage drop affecting Plug-In Charge Control Computer Assembly functionality. The control logic has been modified to reduce the possibility of this condition.

OBSOLETE NOTICE Month ##, 2026: This bulletin is now obsolete. Please see L-SB-0018-26

During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinished before vehicle delivery, it is important that the tires remain on the vehicle in the same location and in the same direction of rotation.

A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain, and battery load. Because of these factors, battery inspection and maintenance are required in order to ensure proper operation and optimal battery life.

OBSOLETE NOTICE June 18, 2026: This bulletin is now obsolete. Please see L-SB-0017-26.