Front Brake Squeal Noise Fix - official TSB brakes fix! (TSB-0046-25)

[photorunner]

Toyota Technical Service Bulletin – T-SB-0046-25

Date: July 24, 2025
Title: Front Brake Squeal Noise

Service Category: Brake
Section: Brake (Front)
Market: USA

Applicability

Year(s):

• 2025: 4Runner, 4Runner HV
• 2024–2025: Land Cruiser

Introduction

Some 2024–2025 model year Land Cruiser, and 2025 model year 4Runner and 4Runner Hybrid vehicles may exhibit a condition where the front brakes produce a squealing noise when driving in reverse. Follow the Repair Procedure in this bulletin to reduce the possibility of this condition.


Warranty Information

OP CODE	DESCRIPTION	TIME	OFP	T1	T2
BR2503	R & R Front LH & RH Shim Kit, and Brake Pad Kit	0.9	04945-60100	91	99

Applicable Warranty Notes:

• This repair is covered under the Toyota Basic Warranty.
• This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to the occurrence of the specified condition described in this bulletin.

Parts Information

PREVIOUS PART NUMBER	NEW PART NUMBER	PART NAME	QTY
04465-60380	04465-34040	Pad Kit Disc Brake, Front	1
04945-60100	04945-0C060	Shim Kit, Anti Squeal, Front (Grease Included)	1
04947-60150	04947-0C030	Fitting Kit, Disc Brake Front (Anti-rattle Spring)	1
	08887-80609	Brake Caliper Grease	1

Note:
Brake caliper grease is a common service consumable. Verify dealership stock before ordering. The amount of grease supplied in a single order is sufficient to repair 10 vehicles.


Required Tools & Equipment

SPECIAL SERVICE TOOLS (SST)	PART NUMBER	QTY
Disc Brake Piston Spreader Wide	09719-77020 / 09719-77050	1

Note:
Additional SSTs must be ordered by calling 1-800-933-8335 if unavailable.



Original Document:

Sponsored

 

[photorunner]

I just happened to be at the dealership today and mentioned this TSB. Unfortunately the parts are on back order, but I have an appointment later this month to hopefully address the noise.

 

[Larry-O]

I have the SR5 and my breaks squelal when revercing out of my garage. I'm glad that their may be a fix to this.

 

[SC4RunnerGal]

Just be warned the back order of parts has no estimated date for when parts will make it in. They will order them for you but won’t be able to estimate when the fix will be able to take place

 

[Larry-O]

Just be warned the back order of parts has no estimated date for when parts will make it in. They will order them for you but won’t be able to estimate when the fix will be able to take place

Good to know. I'll look into getting an oder in quickly. Hopefully my area has some.
TY

 

[papadop88]

If I were you, drive on your current ones a dn wait so you can get brand new pads right before your warranty is up.

 

[photorunner]

If I were you, drive on your current ones a dn wait so you can get brand new pads right before your warranty is up.

I’m just curious to see if this actually fixes the issue or if it happens again. If it’s the latter, I will absolutely wait 30k miles to have fresh pads put on.

 

[photorunner]

Just be warned the back order of parts has no estimated date for when parts will make it in. They will order them for you but won’t be able to estimate when the fix will be able to take place

Yup, they just estimated the time for me, if they’re not in- no biggie.

 

[RogueWarrior65]

Hmm... so I don't have this backup squeal like I've seen in videos but I do hear a very slight squeal while driving. It's not related to braking. It doesn't get worse when braking. It does seem to get a bit louder when making a right turn. These kind of noises are hard to pinpoint. Could it be dust in the brakes? Bearings? (I hope not).

 

[papadop88]

I’m just curious to see if this actually fixes the issue or if it happens again. If it’s the latter, I will absolutely wait 30k miles to have fresh pads put on.

For sure. Me Too. Personally, I think some models got the wrong shims or the batch of shims that were installed on some models were simply too long. Couple that with maybe forgetting a bit of grease, and you get the squeal. Once they put the correct shims on with a bit of grease, you won't have the problem again.

If you order the parts by yourself and replace them yourselves and properly grease them, it will cost you like $20 in shims and grease, and when the time comes down the road, go get new brakes right before you hit 3yrs or 36K.

 

[Van Solo]

Mine is being completed August 13 part already at dealership!

 

[Orquiz13]

Took mine in today to get inspected for the TSB and when I came back they said they surprisingly had all the parts in stock and were able to replace everything today! God is good!

 

[Rellims]

My dealer said minimum of 4 to 6 weeks until they get the parts. He did sound like he was just saying that to say something. Mentioned they have about 1000 they are waiting for, which I find a little hard to believe but who knows.

 

[GeoJay2020]

Mine only squeals in reverse when the vehicle is cold. Called my closest dealer and was told my VIN was not listed for the TSB repair. Huh? I didn't want to leave my daily drive there for a couple days for them to figure it out.

 

[Orquiz13]

Mine only squeals in reverse when the vehicle is cold. Called my closest dealer and was told my VIN was not listed for the TSB repair. Huh? I didn't want to leave my daily drive there for a couple days for them to figure it out.

Mine did the same thing and I explained to them the TSB states all 2025 4Runners that are having the issues of squealing in reverse had to explain to them that I had the TSB in front of me could send it to them to see and after telling them that the all of a sudden found it. They told me to take it in for inspection and replaced all parts today.

Sponsored