Automatic Transmission Control Module Problems of Land Rover Range Rover

Subject: urgent: global safety defect report – Jaguar Land Rover (jlr) powertrain control module (pcm) and fuel pump driver module (fpdm) failure. Description of defect: I am writing to formally report a critical safety defect affecting Jaguar Land Rover (jlr) vehicles involving the powertrain control module (pcm) and the fuel pump driver module (fpdm). These modules are experiencing spontaneous "reset" or "reboot" events during vehicle operation, leading to a sudden and total loss of propulsion. Safety hazard: affected vehicles are experiencing power loss at highway speeds, often resulting in the vehicle stopping abruptly in live lanes of traffic. This defect has directly led to near-misses and reported accidents. The loss of power frequently occurs without warning, rendering the vehicle a "sitting duck" on high-speed roads, creating an extreme risk of rear-end collisions and multi-vehicle pileups. Manufacturer inaction: despite internal technical bulletins (e. G. , NHTSA TSB mc-10218879-0001) and mounting consumer complaints, jlr has failed to issue a global safety recall or provide a permanent hardware/software resolution. While the chinese state administration for market regulation (samr) has reportedly summoned jlr officials regarding these stalling issues, the manufacturer has yet to implement a verified fix or acknowledge the systemic nature of the failure. Demand for action: we request that your agency launch an immediate investigation into the frequency and severity of these stalling events to compel Jaguar Land Rover to initiate a safety recall and protect the motoring public.

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Subject: urgent: investigation request – systemic loss of propulsion in Jaguar Land Rover (jlr) vehicles (2017–2026). 1. Description of defect I am formally reporting a critical, life-threatening safety defect involving the powertrain control module (pcm) and the fuel pump driver module (fpdm) in Jaguar Land Rover (jlr) vehicles. These modules suffer from spontaneous software "resets" or "reboot" loops during operation. When the pcm resets, it severs communication with the fuel system, causing an immediate and total loss of propulsion (motive power). 2. Safety hazard and real-world impact this defect triggers without warning at highway speeds, resulting in vehicles stopping abruptly in high-speed lanes. This creates a "sitting duck" scenario, rendering the vehicle unable to move to a shoulder and significantly increasing the risk of catastrophic rear-end collisions and multi-vehicle pileups. Reported incidents include near-misses and accidents directly attributed to this sudden stalling. 3. Timeline of manufacturer awareness (2017 – present) jlr has been aware of this specific pcm/fpdm communication failure since at least 2017. Internal documentation, such as NHTSA technical bulletin sb-10095121-1020, identified short circuits in the pcm/fpdm line for 2017 f-pace and xe models. Subsequent bulletins, including mc-10218879-0001, admit that software "flashing" is ineffective and that fpdm hardware replacement is often required. Despite nearly a decade of internal knowledge, jlr has failed to initiate a comprehensive global safety recall for all affected vins, opting instead for localized "service actions" that do not permanently resolve the hardware instability. 4. International context and manufacturer inaction the chinese state administration for market regulation (samr) has already summoned jlr officials regarding these stalling failures. However, jlr has not provided a verified, permanent solution. 5. Demand for action we demand an immediate, multi-agency.

“gearbox fault” error popped on dash. Vehicle stopped changing gears while driving. Went into limp mode. Toward to Land Rover dealership. Technician states that there is a fault inside the tcm module within the transmission. Which caused the transmission to fail.

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Tl- the contact owns a 2020 Land Rover Range Rover. The contact stated that when they attempt to come to a rolling stop, the vehicle would jerk and the rpms would revv up without the accelerator pedal being pressed. The contact stated that while idle at a stop sign, with the break pedal pressed, the vehicle suddenly revved up and jerked forward without warning. Also, while in park position, the vehicle would revv up without warning. The vehicle's main computer that controls many electrical system within the vehicle had frozen as well, causing the backup camera and sensors to intermittently fail. Dealership (Land Rover ventura located at 3190 perkin Ave, CA 93003 phone number 855-222-3243)) who rebooted a certain system within the vehicle (system unknown) and updated the software, however, the failure remained. The vehicle was returned another dealership (Jaguar mission viejo located at 28701 marguerite pkwy, mission viejo, CA 92692 phone number 949-392-7300) who diagnosed transmission control module needed to be replaced. The vehicle's gear shift module was replaced. The manufacturer was made aware of the issue and opened a case regarding the matter. The approximate failure mileage was 900. Gl.

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I purchased my new veh in may of 2014. From that time until November, my veh drove/shifted smooth. I took my veh in for its 1st service on Nov. 25th, 2014 and at that time they performed a tcm software update. Since leaving with my veh, I noticed it drove completely different. It shifted hard, clunked into gear & no longer drives like a premium, new vehicle. I advised my service advisor scott a few days later. At that time he scheduled an apt to bring in & check it out. I arrived for my apt on Dec 16th, had the service advisor drive with me so I could show him what I was experiencing. The next day I received a phone call that my veh was "ready to be picked up". I asked "does that mean it is fixed?" he replied, "at this time, we & Land Rover are aware of your concern, but unfortunately, there is no remedy/fix at this time. " they told me they would contact me when there was a known fix/repair. I picked my veh up, & since then, it drives even worse. I explained to the service dept that even though they say it is "safe to drive", that I do no feel safe driving it. In the mornings, the shifts are so violent that I feel like I am doing further damage to my drivetrain/suspension components. I have reached out to Land Rover north America (rep: matt: 800. 452. 4827 ext. 1309020) several times, he states the same thing, "Land Rover is aware of the transmission problem, but there is no known fix at this time". In my opinion, this vehicle is classified as a "lemon" because I cannot operate it with my children in the car & feel safe, & the dealership/car manufacturer does not have a remedy/fix nor can they tell me when it will be available. (I have been dealing with this issue now for almost 2 months & think the time frame I have been patiently waiting for is more than reasonable, which is why I am proceeding now with further action). Thank you for your time!.

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