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Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

bloomberg.com

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Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#71

Post by rcxdude »

lotsofpulp wrote: post #68
Aloha wrote: post #59

Earlier quoted context omitted.

Component availability mostly, the entire automotive world is designed for 12v systems.

I would not have expected many shared components between electric and ICE cars. Especially Teslas.

Tesla have done a lot of vertical integration, but for other manufacturers there's a lot of common electronic components. Stuff like headlamps (even if it's a different plastic housing the board will be the same basic design), door locks, infotainment, dashboard displays where there's little reason to significantly reengineer them for an EV.

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#72

Post by Reason077 »

bryanlarsen wrote: post #21
avianlyric wrote: post #15

Earlier quoted context omitted.

EV don’t use vacuum break booster systems anymore. There are much better and more efficient fully electric break booster systems out there which make a lot more sense. Vacuum break boosters only make sense for ICE vehicles where you already have an existing air pump (the actual engine) providing free “vacuum”, they don’t make sense in EVs where you need to an extra dedicated motor to produce vacuum, to power a vacuum…

That's not reassuring. This recall is the exception. The low voltage 12V battery has been far more unreliable in EV's from all brands than the high voltage battery has been. Is an EV like an ICE in that the 12V bus has power while the car is running even if the 12V battery is dead? In an ICE the alternator puts 13.5 volts onto the 12V bus so a dead battery will prevent a car from starting but it will stay running on…

> "The low voltage 12V battery has been far more unreliable in EV's from all brands than the high voltage battery has been."

Some EV makers, including Tesla, have switched to Li-ion (often LFP) low-voltage batteries. These tend to be better suited to EV duty cycles than lead-acid, and improve reliability and longevity, as well as saving space and weight.

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#73

Post by mrguyorama »

bouncing_bolete wrote: post #53

Interesting timing on this considering the earnings call coming up

I don't think a defect with 13k cars is a significant event to a stock that currently is valued based on magic and dreams and possibly geopolitics.

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#75

Post by pinkmuffinere »

discordance wrote: post #17

"The recall population includes certain Model Year (“MY”) 2025 Model 3 vehicles manufactured between March 8, 2025, and August 12, 2025, and MY 2026 Model Y vehicles manufactured between March 15, 2025, and August 15, 2025, that are equipped with a battery pack contactor manufactured with InTiCa solenoid." https://electrek.co/2025/10/22/tesla-recalls-recent-model-3-...

I don't know much about battery packs -- what's the significance of this particular quote?

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#76

Post by mrguyorama »

lotsofpulp wrote: post #68
Aloha wrote: post #59

Earlier quoted context omitted.

Component availability mostly, the entire automotive world is designed for 12v systems.

I would not have expected many shared components between electric and ICE cars. Especially Teslas.

Not only is the majority of an EV the exact same components as an ICE car, but the electric car industry has been using off the shelf components for decades.

Tesla buys plenty of products from them, including things like electric steering assist.

Bosch wants to stay relevant for longer than ICE cars after all, and a lot of these components were developed for ICE cars anyway.

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#77

Post by Sohcahtoa82 »

grayfaced wrote: post #35
vel0city wrote: post #25

Earlier quoted context omitted.

In a lot of EVs, when the car is "on" there is a DC/DC converter powering the 12V system from the HV battery. So if the car was "on" and experienced a loss of the 12V battery it could continue operating for some period of time.

I think the implication is that people could be driving with a dead 12V as if nothing is wrong. Then when they experience the HV failure in the recall, they would have no power whatsoever for safety systems.

I don't know about other EVs, but in a Tesla, a failing 12V battery will be detected and the car presents a warning on your screen about it.

Mine failed after ~5 years. Replacement was inexpensive ($128) and Tesla service drove to my house to install it.

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#78

Post by Rover222 »

thesuitonym wrote: post #10
nomel wrote: post #8

Earlier quoted context omitted.

I wonder how they compare to the rest of the auto manufacturers, in this regard.

According to cars.com, the cybertruck has had 8 safety recalls, while the 2024 Ford F-150 Lightning has had 2.

But how many of those Tesla “recalls” were OTA software updates?

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#79

Post by bilsbie »

bob1029 wrote: post #6

What happens in the edge case of losing HV during heavy braking on the freeway? Does the brake booster still function independently of the HV system, or is the driver going to have to push the pedal a lot harder?

Steer by wire terrifies me. I guess they have thought through every failure mode?

Re: Tesla Recalls Almost 13,000 EVs over Risk of Battery Power Loss

#80

Post by mildconcern »

gamblor956 wrote: post #74

For comparison, the level of seriousness compared to an ICE vehicle: this would be like if the fuel tank stopped working.

Who else thought this post referred to border patrol vehicles?

I try to avoid political news but am apparently failing at some level.

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