Wired
It seems that the 2022 problem occurred in the car of Honda and its luxury car brand Acura.
The date indicated by the clock has returned about 20 years ago, and it has been pointed out that it may be a malfunction of the GPS rollover process.
The date goes back about 20 years on New Year’s Day 2022
According to Jalopnik, owners of Honda and Acura cars have reported that the date has returned by about 20 years on New Year’s Day 2022.
This issue has occurred with models with car navigation, launched in the United States, Canada and the United Kingdom between 2006 and 2014.
A Honda spokeswoman told The Verge that they were aware of the clock display issues that occurred on some older Honda and Acura cars.
We are currently investigating how to deal with it, and at this time there is no more detailed information to share.
Said.
GPS rollover processing glitches?
Jalopnik suspects this issue is due to a bug in the GPS rollover process.
Cars with car navigation set the date and time based on the information obtained from GPS, but GPS sends only weeks and seconds, not year / month / day / hour / minute / second information. ..
To display this as date and time information, it must be converted to year / month / day / hour / minute / second on the terminal side.
And the week information is represented by a 10-digit binary number, with a maximum of 1,023.
Returning to 0 after 1,023 is called “rollover”, and it is necessary to perform correction processing on the terminal side in consideration of the occurrence of this rollover.
In this case of Honda and Acura, the date is back to May 19, 2002, exactly 1,024 weeks ago, so we either neglected to implement the rollover process, or there is a problem with the rollover process. Is possible.
Microsoft Exchange also has 2022 issues
Regarding the 2022 issue, Microsoft Exchange also had a problem that the variable that stores the date overflowed and mail delivery stopped.
If you include the details, including this Honda and Acura issue, there may be more 2022 issues.
It has been pointed out that the release of Chrome 100 may cause a “new year 2000 problem” this year.
Source: Jalopnik via The Verge
(Hauser)
Source: iPhone Mania