Top Gear’s James May uncovers hidden Tesla battery glitch – ‘The doors won’t unlock’

Bill Gates says Tesla are moving 'fast' through electric cars

When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time.

The issue stems from the smaller car battery which controls the car’s computer, electronics and unlocking the vehicle. According to Mr May, the smaller battery does not charge if the main battery is fully topped up which could lead to issues.

He said this will eventually “go flat” which will leave drivers unable to get back into their car.

Tesla told Mr May there is a workaround fix but this would include dismantling much of the machine.

Speaking to Drivetribe, he said: “The Tesla has two batteries, it’s got its great big battery under the floor which powers the car.

“It also has on the front trunk a conventional 12V car battery which keeps all the systems alive and the memory and computer and all that usual rubbish. It makes the car unlock.

“That, because I hadn’t used the car for a while, had gone flat.

“You might think ‘well why does that battery go flat when it a great big battery and its permanently plugged into the charger in my garage even though it’s not being used because of lockdown’. Very good question.

“But what Tesla has explained to me is yes, the car charges conventionally through the cable.

“That charger also via the electronics keeps the [little] battery charged.

Car tax changes are the ‘biggest reason’ behind electric car demand [INSIGHT]
Government should ‘take responsibility’ to boost electric car sales [COMMENT]
Classic cars converted to electric power in ‘world first’ [ANALYSIS]

“But when the big battery is fully charged the charging system turns off and it doesn’t keep topping that [little] one up.

“That one eventually – because it’s running the computer and so on in the background – goes flat.

“I couldn’t get into the car because the batteries flat. So the doors won’t unlock and the handles won’t come out.”

According to Mr May, Tesla said drivers can still access their car by pulling two emergency release handles.

However, these are located behind the wheel arches which requires drivers to remove parts of the bodywork.

When inside, drivers will then need to remove two car panels and a piece of the front bodywork to get access to the battery.

Mr May added: “Just in case this happens to other people it needs a permanent charging port attached.

“I put these on all my motorcycles for exactly this reason.

“If they are parked up and I’m not using them I can plug a trickle charger in and maintain the battery condition.

“That is wired up to the battery and that but just sticking out there in a convenient place making a little hole.

“That’s what it needs because otherwise to charge the battery you will need to dismantle the car.”

Tesla confirmed the cars 12v battery “can fail or run flat” especially if it has been left for a long period of time

They said: “Tesla charge the 12v battery from the main battery pack, but Tesla also take the view they must protect the main battery pack as much as possible and if it is running low may put the battery into a deep sleep/low energy mode.

“This minimises any drain on the battery preserving its life, but this equally prevents it topping up the 12v battery and effectively paralysing the car.

“The 12v battery can run falt within 24 hours once the main battery pack has stopped supporting it.”

Tesla said they can get their car going by gaining access to the 12v battery and attempting to trickle charge it.

Drivers should charge the battery to a modest state of charge and then continue to top up the car through their usual method.

Source: Read Full Article