How To Tell If Your 2010 Prius Is Affected by the Brake Issue

A Special Service Campaign (SSC) or full-fledged recall is imminent for the 2010 Toyota Prius to update the brake ECU software in order to resolve the "brake loss" sensation that occurs when the car changes over from regenerative brakes to the friction brakes. As I reported last night, an anonymous Toyota official told me that a fix is on the way.

The ECU software for the 2010 Prius has been updated on the production line since January and so therefore it does not effect every single 2010 Prius on the road, though a vast majority do not have the software update.

How do you know if your 2010 Prius will need the software update?

All you need to do is look at the door jam of your Prius and take a look at your VIN number. The VIN number is the set of letters and numbers above the barcode in the photo above.

Update: 2/11

Here is a definitive list of US Prius VINs involved in the ABS Brake Recall:

There are approximately 133,000 Prius vehicles (2010 model year) involved in the U.S.

NOTE:
• Not all vehicles in the VIN range are affected by this Safety Recall.

Thanks to information from PriusChat member ken1784, we now know that the ECU software of following VIN Prius had been modified since late January production.

0124257 or later (Toyota Tsutsumi #1 production line)
1157314 or later (Toyota Tsutsumi #2 production line)
5118118 or later (Toyota Auto Body Fujimatsu production line)

So, if your VIN is within those numbers in the table above, or if you know your Prius was produced before January, then you will at some point receiving a notice to bring your Prius in for a software update. This most likely affects 99% of all North American 2010 Prius hybrids.