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NHTSA Investigates Failing MCUs
- Thread starter 2101Guy
- Start date
Based on the other thread, they are replacing the failing part with new-old stock of the same board with the same part. Typical Tesla.
Also, there is an extensive thread by the Danish guy who did an electron microscope breakdown on the failing eMMC chip and it's not related to logging, just general usage of the memory. So we can expect this Tesla fix to break in a few years.
Also, there is an extensive thread by the Danish guy who did an electron microscope breakdown on the failing eMMC chip and it's not related to logging, just general usage of the memory. So we can expect this Tesla fix to break in a few years.
whitex
Well-Known Member
whitex
Well-Known Member
Ha, ha, sounds like a trick straight out of the 80's car sales manual. So much for Elon's direct sales and service model - no haggling, everyone pays clearly posted prices. Oh wait, I know what happen, that model is still "coming soon".
Looks like in some way I saved you $270! Yeah! Go me))
Nice so looks like the repair is somewhere between $120-700, There was a report of Diagnosis charge also, Price of Tegra replacement by Tesla is very YMMV.
secobarbital
Member
I was quoted a diagnosis charge when I made the appointment, but it came out as goodwill. I think they don’t charge it if it turns out to really be a problem.
ALL COST SIGNIFICANT MONEY FOR NO REASON OTHER THAN TESLAS DESIRE TO GATHER DATA AT THE CUSTOMERS EXPENSE
Newscutter
Member
Perhaps a pertinent data point-- Ford just recalled 700,000 vehicles SOLELY for wonky backup cams, the ostensible reason for which NHTSA is investigating Tesla's MCU failures:
Ford recalls over 700K vehicles; backup cameras can go dark
Ford recalls over 700K vehicles; backup cameras can go dark
The main difference is that those vehicles were produced after a backup camera was required on all vehicles. Teslas that came with MCU1 were produced before that requirement was in force.
Interesting.
I wonder how wonky is wonky enough to interest NHTSA. MCU2 units have a recognised issue effecting upgrade and original fitment cars with backup camera being very dark in moderate to low light levels.
Backup Cam doesnt adjust exp. for night?
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I don't know what the requirements are, other than I have seen that if they offer you adjustments to change brightness/contrast that it is required to go back to the default settings every time the backup camera is activated. (You aren't allowed to save your brightness/contrast settings.)
If you think it being dark is a safety issue you should report it to Tesla, and possibly NHTSA.
If MCU1 dies under warranty (within 4 years), do they give new daughter board? Any one get a reduction for an MCU2 upgrade instead?
NHTSA it still going down their normal path and have upgraded from a PE, preliminary evaluation, to an EA, engineering analysis, investigation: U.S. upgrades safety probe into nearly 159,000 Tesla vehicles
Interesting that overall it only appears to be a ~9% failure rate so far. (Though they say that the failure rate is over 30 percent in certain build months.)
It sounds like Tesla has made software changes to try to avoid a recall. If it detects it is near the end of life the MCU goes into limited functionality mode that displays only the rear view camera, sets HVAC to auto, so defrost works, and has changed how the turn signals work so that they should continue to operate. (Though that might require a recall to make sure everyone is on the software version that supports the limited functionality mode.)
Interesting that overall it only appears to be a ~9% failure rate so far. (Though they say that the failure rate is over 30 percent in certain build months.)
It sounds like Tesla has made software changes to try to avoid a recall. If it detects it is near the end of life the MCU goes into limited functionality mode that displays only the rear view camera, sets HVAC to auto, so defrost works, and has changed how the turn signals work so that they should continue to operate. (Though that might require a recall to make sure everyone is on the software version that supports the limited functionality mode.)
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I am currently upgrading to MCU2 because I have had a lot of MCU1 problems and more recently it has been crashing and black screening for a long time. Bug reports don't even work or understand me sometimes so I gave up. S/C doesn't say much either. I'm paying out of pocket so I hope that this would all be reimbursed but we will find out Feb 2021.
The FAQ clearly states that unless Tesla has diagnosed the eMMC failure that a MCU2 upgrade would not be reimbursed. (And it would only be reimbursed at the rate that the eMMC repair would be done at that time. Which right now, assuming you aren't out of the extended warranty period, is $0. Or ~$500 if you are out of the extended warranty period.)
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