I am reporting a safety concern involving BMW and Toyota vehicles equipped with the B58 Technical Update (B58TU) engine, commonly found in 2019–2021 models. These engines use a variable displacement oil pump with an internal thermoplastic adjusting component that regulates oil pressure. Field reports show this component can fracture, causing sudden loss or instability of oil pressure—most often during cold starts in low temperatures. When the part fails, oil pressure regulation becomes erratic or disappears entirely, often with little or no useful warning before engine damage or vehicle disablement. Reported early signs include failed electronic oil level readings, abnormal pressure behavior, or sudden drivetrain malfunction messages. Failures can quickly escalate to engine shutdown or severe mechanical damage from oil starvation. A loss of lubrication may disable the vehicle without warning while driving or shortly after startup, creating a safety hazard—especially in winter conditions when failures are most frequent and occupants may be exposed to freezing temperatures. Repairing the issue requires major disassembly, and oil pump replacement alone typically costs $6,000–$8,000 if the engine has not been harmed. Owners cannot reliably determine whether their cars contain the original plastic based pump or a later metal component revision because VIN based parts data now shows updated components even when no replacement occurred, and BMW has removed the original plastic pump part number from dealer systems. Failures have been reported across multiple production years, and the exact population of affected vehicles remains unclear. Because this defect can cause sudden, warning free vehicle disablement—particularly in cold weather—I believe it warrants investigation as a potential safety related issue. One of the main indicators of this issue is the inability to determine oil level, my car has never been able to determine oil level. Thank you.

Source: NHTSA complaint ODI #11725612 · view all complaints for this vehicle at nhtsa.gov

There is currently an ongoing recall for the GR Supra over the starter. I currently drive a 2020 and have had periodic starter malfunctions. This is when I go to start the car it states starter system malfunction then lets me still turn it on after clearing the error message. I have brought this up to my dealership and due to the intermittent nature of the issue they said they could not diagnose and that continuity was good so they would not replace it and if they did it would not be covered. I fear that my car is a fire risk based on the recall notices for all the other model years and that when it happens I will be left holding the bag. The date listed below (7/17/2026) is just the last time it happened. I have had it happen close to 20 times or more it feels like.

Source: NHTSA complaint ODI #11752727 · view all complaints for this vehicle at nhtsa.gov

I PURCHASED A 2020 TOYOTA SUPRA ON NOVEMBER 11, 2019. ON DECEMBER 2,2019. THIS VEHICLE SERIOUSLY AND VERY DANGEROUSLY MALFUNCTIONED. I WAS PULLING OUT OF MY RESIDENTIAL AREA AFTER STOPPING AT A STOP SIGN, PROCEEDED TO MAKE A LEFT ONTO GREENSPRING AVE. , HEADING TOWARDS THE BELTWAY, AND THIS VEHICLE, INSTEAD OF ALLOWING ME TO TURN LEFT, TOOK OVER AND THE STEERING WENT TO THE RIGHT, TAKING ME UP A CURB AND INTO A TREE. THE CAR LITERALLY TOOK COMPLETE CONTROL WITHOUT ALLOWING ME TO CONTROL THE STEERING. THERE ARE MANY POSSIBLE REASONS THAT COULD HAVE CAUSED THIS TO HAPPEN. IT COULD BE THE A LANE SENSOR FAILURE, STEERING FAILURE, SENSORS FAILURE, SOFTWARE FAILURE, SOFTWARE MISCOMMUNICATION ETC. WHAT'S WORSE IS TOYOTA THEMSELVES ARE SELLING A HIGHLY TECHNICAL VEHICLE, WHICH AFTER DEALING WITH THEM, IT IS MORE THAN OBVIOUS THEY THEMSELVES EVEN SUPPOSEDLY THEIR TOP ENGINEER, HAS HAD ABSOLUTELY NO EXPERIENCE WITH THIS VEHICLE OR MUCH LESS A BMW WHICH IS THE ENGINE MAKER IN THIS VEHICLE, HE NEVER WORKED WITH THEM EITHER. THROUGH THIS EXPERIENCE WHICH HAS BEEN A COMPLETE NIGHTMARE, TOYOTA COULDN'T EVEN GET THE EDR BOX TO DOWNLOAD ANY DATA. I AM PETRIFIED THAT THIS VEHICLE COULD HAVE HURT OR EVEN KILL SOMEONE OR MYSELF AND TOYOTA HAS BEEN CLEARLY AT A LOSS WITH ANY ANSWERS JUST COMPLETE SNEAKINESS. PLEASE GET THIS VEHICLE OFF THE ROAD UNTIL THIS VEHICLE IS BETTER UNDERSTOOD BY TOYOTA BEFORE SOMEONE GETS KILLED. THEIR ARE MANY PARTS ON THE VEHICLE THAT ARE DAMAGED INCLUDING BUT NOT LIMITED TO THE WHEEL, TIRE, SUSPENSION, HOOD, SIDE OF THE VEHICLE, PASSENGER SIDE MIRROR ECT.

Source: NHTSA complaint ODI #11290586 · view all complaints for this vehicle at nhtsa.gov

Rear hatch will not open electrically and/or from the interior manual release handle. If someone gets stuck in the trunk or a pet, won't be able to come out. I had items I bought and if they included battery or dangerous item, my safety would be at risk. There is no rear realse hatch button from the outside the car. NO other problems or accidents. Is there any additional weight mounted on the rear hatch (e.g. a spoiler)? No Does the latch release electrically? No 4. When attempting to release electrically, does the latch make a noise? No, but you can hear a light click in the wiring when you press the trunk electronic button 5. Does the latch release from the interior manual release? (NOTICE: Only attempt to release using light force. If excessive force is applied, additional damage may occur.) No 6. Does the interior manual release cable feel stiff when pulled gently, or does it extend and rebound freely? Manual release cable feels stiff when pulled genlty

Source: NHTSA complaint ODI #11510758 · view all complaints for this vehicle at nhtsa.gov