Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
300 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Scion xB brakes problems

brakes problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2012 Scion xB:

Unsubscribe any time. We don't sell/share your email.

2012 Scion xB Owner Comments

problem #1

Jan 242013


  • 300 miles


Loss of vacuum pressure to power brake booster under deceleration at 10mph and under. My vehicle is a 2012 Scion Xb automatic. There is a sudden loss of vacuum pressure to the power brake booster during deceleration around 10mph which cause the brakes to become less responsive the moment the transmission down shifts, requiring me to press the brake pedal a little harder to continue stopping the vehicle at the rate I deem as "safe". issue is worsened when the A/C is running. This happens 1-20 times w/O A/C and 20-20 times with the A/C turned on. This issue is dangerous and causes me to nearly rear-end vehicles ahead of me if I am no paying close attention to my vehicle speed.

- Baldwin Park, CA, USA

Not what you are looking for?