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Hi everyone
We got for 2017 ES 350 few days ago .Today pumped out brake fluid from reservoir and add new (reservoir was overfilled ) after adding fluid i got braking power low light come up . Battery good ( tested ) car drives fine , brake pedal not soft not hard and brakes works fine . Not sure what else can be , need help please
Maybe you got air in the brake lines when emptying the reservoir and refilling it with fresh fluid.
How did you "pump out the fluid from the reservoir"?
You never want to empty it as that will introduce air into the brake lines.
The correct way is to use a syphon or turkey baster to remove as much fluid as you can, then fill it with fresh fluid, then open each wheel bleed screw one at a time to change the fluid. Using a vacuum pull tool pull the fluid through works very well. The old school method with a friend pumping the brake pedal is asking for trouble.
It may be time to bleed your brakes properly. Or pay a shop to bleed your brakes.
Maybe you got air in the brake lines when emptying the reservoir and refilling it with fresh fluid.
How did you "pump out the fluid from the reservoir"?
You never want to empty it as that will introduce air into the brake lines.
The correct way is to use a syphon or turkey baster to remove as much fluid as you can, then fill it with fresh fluid, then open each wheel bleed screw one at a time to change the fluid. Using a vacuum pull tool pull the fluid through works very well. The old school method with a friend pumping the brake pedal is asking for trouble.
It may be time to bleed your brakes properly. Or pay a shop to bleed your brakes.
I used pump , I will try to bleed each wheel
thank you
Only ECU codes are erased by battery disconnect - and only because it is part of OBD2 specification. All other codes stay. Get a Toyota scanner and read/reset codes properly.
Only ECU codes are erased by battery disconnect - and only because it is part of OBD2 specification. All other codes stay. Get a Toyota scanner and read/reset codes properly.
I have a Foxwell NT510 Elite bi-directional scanner, bought with General Motors software already on it. I bought BMW/Mini/Rolls-Royce software later, for my '01 X5, that I got soon afterwards. I've used the Foxwell for many things, using both programs, with great success (the scanner has saved me a lot of money, paid for itself many times over). When my wife bought her '14 Lexus ES350 (with 55k miles, in 2023), I also bought the Foxwell software for it, too (the NT510 Elite can accept software for five brands). I haven't used it but a few times {to check for codes and reset the oil), since the Lexus is almost perfect, but I expect to use it a lot in upcming years.
The NT510 Elite is still available, and there's a NT530 model that is also bi-directional, but if I were to buy another Fowxwell, it'd be the NT710, which is much advanced, has online downloads and updates, and has a faster processor inside. I've absolutely no experience with Launch, but I can recommend the Foxwell brand, enthusiastically (it's a favorite on the Xoutpost.com site).
Borrowed Autel scanner from neighbor, scanned for codes nothing come up . Decided to bleed using scanner and after test it’s saying front right line air bleeding , proceed bleed and still same so repeat two more time with no luck . Don’t want to take to steallership but maybe have no choice
Last edited by aledavidov; Aug 8, 2025 at 07:47 PM.
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Braking Power Low
