Tesla is rolling out an over-the-air software program replace that might enable the corporate to handle a windshield defrosting difficulty current in automobiles which are geared up with a warmth pump. A complete of 26,681 automobiles are affected by the problem, based on the Nationwide Freeway Site visitors Security Administration’s (NHTSA) Security Recall Report.
Automobiles which are a part of the “recall” embody 2021-2022 Tesla Mannequin S, 2020-2022 Tesla Mannequin Y, 2021-2022 Tesla Mannequin 3, and 2021-2022 Tesla Mannequin X. The US regulator famous in its Security Recall Report {that a} software program error within the affected automobiles might trigger a valve on the vehicles’ warmth pumps to open unintentionally, leading to refrigerant being trapped contained in the evaporator. This might adversely have an effect on a automobile’s defrosting efficiency.
Whereas the problem is kind of notable, Tesla notes that it isn’t conscious of any crashes, accidents, or fatalities associated to the affected automobiles’ warmth pump difficulty.
A chronology of the warmth pump difficulty was outlined within the NHTSA’s Security Recall Report. As per the doc, Tesla started rolling out firmware launch 2021.44 and subsequent releases by means of firmware launch 2021.44.30.6 to affected automobiles on or about December 10, 2021. Later that month, the corporate began receiving complaints from clients concerning the lack of heating efficiency in excessive climate circumstances.
An investigation to seek out the basis reason for the problem was commenced then. By January 11, 2022, it was decided that the dearth of software program command to shut the Digital Growth Valve (EXV) after communication interruptions in firmware launch 2021.44 by means of 2021.44.30.6 was a possible reason for the issue. Software program replace 2021.44.30.7 and later releases, which reintroduced a software program command to shut the EXV, was rolled out on January 15, 2022, as a precautionary measure.
Tesla Mannequin 3, Mannequin Y HVAC investigation in Canada nonetheless ongoing after 171 client complaints
Following discussions with the NHTSA’s Workplace of Automobile Security Compliance and Transport Canada about client complaints, Tesla performed exams to evaluate the compliance of recent automobiles delivered with the software program command present in firmware launch 2021.44 by means of 2021.44.30.6. Sadly, the outcomes of those exams revealed that new automobiles delivered with firmware launch 2021.44 by means of 2021.44.30.6 should current points in worst-case situations.
After confirming the basis reason for the problem, a recall dedication was made for the affected automobiles on January 26, 2022, the ultimate day of the compliance exams. The affected automobile inhabitants for the recall was then expanded out of an abundance of warning on February 7, 2022, to include automobiles which are at the moment operating firmware launch 2021.44 by means of 2021.44.30.6, however are but to put in firmware launch 2021.44.30.7 or later.
The treatment for the problem was outlined within the NHTSA’s Security Recall Discover. As per the doc, the repair for the problem could be rolled out by means of firmware launch 2021.44.30.7. The replace, just like Tesla’s different key patches for its automobiles, could be launched over-the-air and utterly freed from cost.
“Firmware launch 2021.44.30.7 and later releases treatment the situation by reintroducing a software program command to shut the EXV, thereby stopping refrigerant from getting into the evaporator. No additional motion is important from homeowners whose automobiles are geared up with firmware launch 2021.44.30.7 or a later launch.
“Tesla doesn’t plan to incorporate a press release within the Half 577 proprietor notification about reimbursement for pre-notice repairs to homeowners since the entire affected automobiles stay lined beneath the brand new automobile guarantee, and homeowners will obtain the treatment freed from cost with an OTA firmware launch.”
The NHTSA’s Security Recall Report for Tesla’s warmth pump difficulty could be considered under.
RCLRPT-22V050-2023 by Simon Alvarez on Scribd
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