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Tesla Identifies Cause for Model S Fire in Norway

After an exhaustive investigation, Tesla Motors has determined that the fire in a Model S in Norway last January was caused by a short circuit inside the electrical distribution box. A software upgrade is planned shortly.

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After an exhaustive inquiry, Tesla Motors has determined the cause for the fire that engulfed a Tesla Model S while it was charging at a Supercharger station in Norway. The culprit – a short circuit in the electrical distribution box inside the vehicle according to Norwegian news site VG.

Tesla Communication Manager in Norway, Even Sandvold Roland, tells VG via e-mail, “In January, it was an isolated incident where a Model S caught fire while it used a Supercharger. The cause was a short circuit in the distribution box in the car. Superchargers were turned off immediately when the short circuit was discovered. No one was injured in the fire. Our investigation confirmed that this was an isolated incident, but due to the damage to the car, we could not definitely identify the exact cause of the short circuit.”.

Jan 1, 2016 – Tesla Model S burns to the ground while fast-charging at the Sundebru Supercharger in Gjerstad, Norway. [Source: VG]

Tesla pointed out that its vehicles have used Tesla Supercharger stations safely more than 2.5 million times. In addition, more than 35 million charging sessions have been completed safely and successfully using either home or destination chargers. Nevertheless, the company says it will update the software package in the Model S to provide extra security during charging. It tells VG the update will include a diagnostic solution to prevent charging if a potential short circuit is detected.

The cause of the fire could not be pinpointed further due to the extensive damage to the car. Norwegian firefighters, concerned for their own safety during their first encounter with a burning electric car, allowed the fire to burn itself out while protecting surrounding buildings with fire retardant foam.

The Norwegian Directorate for Civil Protection and Emergency Planning (DSB) was involved in the investigation of the fire. It had several meetings with Tesla representatives and is convinced this was an isolated incident. There is no reason to over-dramatize the event, they concluded.

DSB chief engineer Jostein Ween Dig told VG, “We are confident that this is a special event. A car fire is often spectacular, but there is no reason to believe that electric cars burn more often than other cars. Statistics actually indicate that incidence of fires is lower for electric cars, he said.

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Actually, the fire was a “kinder” event than a fossil fuel fire, Dig said. “The owner had time to run back, unplug the charger connector and remove his possessions from the car. It took several minutes before the car was ablaze. Normally an electric vehicle fire is not as explosive as it can be in a petrol car. The flames you see in the picture and video were mostly from plastic in the interior that caught fire.” He emphasized that the battery did not explode.

Norwegian officials seem satisfied that Tesla automobiles and Supercharger stations pose no unusual risks of fire. The Supercharger location is now back in full operation and doing business as usual.

Special thanks to Leif Hansen in Norway for alerting us to the VB news story. 

Photo Credit: VB News

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Tesla Semi catches fire in California: what we know

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Credit: KTVU

A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.

The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.

There were no injuries reported.

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The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.

However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.

At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.

The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.

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The truck’s driver said that the Semi caught fire, but he did not have an explanation.

An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.

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Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world

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Credit: Tesla

Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.

A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.

“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”

Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.

Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.

Tesla constitutes the following situations as reasonable justifications for activating the feature:

  • You face an immediate threat to your life or personal safety.
  • You must leave the area immediately.
  • Exiting the vehicle is unsafe.
  • Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.

After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.

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Tesla’s Cybercab battery design could make robotaxis even cheaper

Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.

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Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.

Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.

The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.

Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.

The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”

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That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.

The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.

Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.

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