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SiriusXM may be responsible for transmitting the OS update for their hardware stack over the satellite, but the chances are vanishingly small that SiriusXM is r

SiriusXM may be responsible for transmitting the OS update for their hardware stack over the satellite, but the chances are vanishingly small that SiriusXM is responsible for designing, testing, and queuing for delivery OS updates to a car manufacturer's hardware stack. Blaming SiriusXM for the issue masks that, but they can be called to question more accurately as a result by the press: * Did Fiat-Chrysler negotiate phased-deployment and day-of-week criteria with SiriusXM, or was SiriusXM alone responsible for those choices? * Can SiriusXM release OTA firmware updates for the hardware stack in these vehicles without the cooperation and signoff of Fiat? * Why did the firmware's watchdog process fail to detect the crash-reboot loop (or is no watchdog present), and do they intend to correct that failing in the future so that such crashes result in an automatic firmware rollback in the future?

t1o5 9y ago
FCA ISOs are bundled from various vendors. The QNX OS from Harman, some of the uconnect apps and the data connectivity is from Sprint. * FCA is an automotive company, I presume their s/w release management dont follow best practices. * SiriusXM cannot push OTA updates. It has to be provisioned from FCA and pushed through their uconnect DRM process to the headunit. * There is a watchdog in FCA UConnect but for the apps. Im not sure they have it for the OS. I know for sure that the watchdog restarts daemon apps when they crash.
- bonestamp2 9y ago
  > The QNX OS from Harman Is it true that Panasonic makes some head units for FCA? Are all UConnect head units Harman?
  - t1o5 9y ago
    I think the 6.5” screensizes and MY13 or older ones were from Panasonic. Harman took over with the new touch enabled screen models. The consumer facing apps run on J2ME LWUIT on top of JamaicaVM in QNX.
  - luma 9y ago
    Mitsubishi made a handful of UConnect head units (specifically the RHB and RBZ models) in the early 2010s as well.

t1o5 9y ago

FCA ISOs are bundled from various vendors. The QNX OS from Harman, some of the uconnect apps and the data connectivity is from Sprint. * FCA is an automotive company, I presume their s/w release management dont follow best practices. * SiriusXM cannot push OTA updates. It has to be provisioned from FCA and pushed through their uconnect DRM process to the headunit. * There is a watchdog in FCA UConnect but for the apps. Im not sure they have it for the OS. I know for sure that the watchdog restarts daemon apps when they crash.

bonestamp2 9y ago
> The QNX OS from Harman Is it true that Panasonic makes some head units for FCA? Are all UConnect head units Harman?
- t1o5 9y ago
  I think the 6.5” screensizes and MY13 or older ones were from Panasonic. Harman took over with the new touch enabled screen models. The consumer facing apps run on J2ME LWUIT on top of JamaicaVM in QNX.
- luma 9y ago
  Mitsubishi made a handful of UConnect head units (specifically the RHB and RBZ models) in the early 2010s as well.