Low brake power light, RX not starting?
Thread Starter
Driver School Candidate
Joined: Jan 2016
Posts: 17
Likes: 1
From: Ky
Low brake power light, RX not starting?
Has anyone else had issues with their brakes? In December shortly after purchasing my car it began throwing a "low brake power" light in the mornings. I would get in and the brake wouldn't go down to allow me to start the car. I was able to override by holding the start button and after the car was driven it wasn't an issue until the next morning. I took it in and they replaced some tube that was leaking. 4 months later I'm having the same issue. I get in the car and the brake refuses to go down to allow me to start the car. Back to the dealer I go..........
Racer
Joined: Apr 2016
Posts: 1,387
Likes: 349
From: ON
No problems so far, but my 3RX would not let me start the car from time to time. It was like the brake pedal was frozen. You could not push down on the brake. No warning lights. Had to push very hard on the brake to get it to start
Driver
Joined: Jun 2013
Posts: 163
Likes: 22
From: Ga
Lexus Master Tech here,
Lexus is aware of the issue, and a new brake booster will need to be installed. The vacuum reserve is losing vacuum overnight. The ABS/VSC computer picks up on this, and thows the code.
Lexus is aware of the issue, and a new brake booster will need to be installed. The vacuum reserve is losing vacuum overnight. The ABS/VSC computer picks up on this, and thows the code.
Thread Starter
Driver School Candidate
Joined: Jan 2016
Posts: 17
Likes: 1
From: Ky
Driver
Joined: Jun 2013
Posts: 163
Likes: 22
From: Ga
Thread Starter
Driver School Candidate
Joined: Jan 2016
Posts: 17
Likes: 1
From: Ky
Driver School Candidate
Joined: Sep 2015
Posts: 41
Likes: 4
From: FLORIDA
I had this problem as well. Dealer replaced the brake booster about a month ago and no issue so far. Dealer told me it may become a recall at some point.
Has anyone else had issues with their brakes? In December shortly after purchasing my car it began throwing a "low brake power" light in the mornings. I would get in and the brake wouldn't go down to allow me to start the car. I was able to override by holding the start button and after the car was driven it wasn't an issue until the next morning. I took it in and they replaced some tube that was leaking. 4 months later I'm having the same issue. I get in the car and the brake refuses to go down to allow me to start the car. Back to the dealer I go..........
Trending Topics
Pit Crew
Joined: Feb 2016
Posts: 123
Likes: 130
From: Ontario
We had this happen twice I think. If they don't have a permanent fix yet, I don't see a point of replacing parts for it to come back yet again. More times they tinker with car, more chances dealer messes up something.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler
Michael S. Palmer
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)
Joe Kucinski
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!
Brett Foote
Driver School Candidate
Joined: Jan 2016
Posts: 6
Likes: 0
From: CA
Driver
Joined: Feb 2016
Posts: 176
Likes: 22
From: WA
Driver School Candidate
Joined: May 2016
Posts: 3
Likes: 0
From: TX
Had the same problem with brake power low in the morning and it would not allow the car to start. The dealer said it was a leak in the brake booster, they replaced that and no recurrence of issue yet, so far 45 days since repaired. This happened after only 4 months and less than 3,000 miles on new car.
Driver School Candidate
Joined: May 2016
Posts: 23
Likes: 3
From: CA
Just got the "Low Brake Power" message this morning for the first time. I drove the car cautiously around our neighborhood testing it and it seemed fine. I have restarted the car 2 times and driven it since this morning with no message showing up, debating if I should schedule an appointment or not. Right now I'm leaning to the wait it out and if it occurs a 2nd time bring it in to the dealership. For those interested, we have a RX 350 AWD F-sport purchased early June and originally assembled in May with about 1200 miles so far.