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

[Tarekith]

Same, two months in and not a peep since they did the TSB.

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[gtr022001]

Same, two months in and not a peep since they did the TSB.

Pulled out of my garage and heard the cringey screech
I’m not far from my first oil change, do I just mention the tsb to my stealership and the will honor the fix ?

 

[FoozGrind]

Tell the stealership your brakes sound like fucking garbage in reverse. Print the tsb keep it in your pocket and see if they offer to fix it. If they say there isnt a fix, grab that paper so they can feel stupid

 

[Tarekith]

Pulled out of my garage and heard the cringey screech
I’m not far from my first oil change, do I just mention the tsb to my stealership and the will honor the fix ?

Most dealerships are going to want to hear it for themselves, and that’s all you need to do. Mentioning the TSB if they can‘t verify the issue doesn’t mean anything I’m afraid, it’s not like a safety recall.

 

[gtr022001]

Most dealerships are going to want to hear it for themselves, and that’s all you need to do. Mentioning the TSB if they can‘t verify the issue doesn’t mean anything I’m afraid, it’s not like a safety recall.

this is what I’m worried about bc it only seems to happen when the car is in the garage and I reverse out.
When it’s on my drive way I’ve not heard the screech.

 

[Tarekith]

My dealer asked me to drop the 4Runner off with them for the day so it could be parked for a few hours before they tried to observe the noise. Somebody may have squirted water all over the calipers and pads with a water bottle before they dropped it off at the dealership. Just to simulate overnight conditions.

 

[Todd_Limited]

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.

My dealership just told me the TSB is expired. This of course after they scheduled me for the work the day prior.

 

[FoozGrind]

That’s a lie unless they’re looking at an older tsb. There are about 5 of them listed for brakes. I’d complain to Toyota brand tell them the dealer said it expired after they got you scheduled. Watch how fast they call you back to schedule it.

 

[Todd_Limited]

Mine is being completed August 13 part already at dealership!

Did it work?

 

[Todd_Limited]

That’s a lie unless they’re looking at an older tsb. There are about 5 of them listed for brakes. I’d complain to Toyota brand tell them the dealer said it expired after they got you scheduled. Watch how fast they call you back to schedule it.

What's your source for the TSB's? I can see the current one (T-SB-0046-25) via the NHTSA site. Was just wondering what you were seeing?

 

[FoozGrind]

Same site your at. There are two for Feb one says it’s no good use the other.




Front Brake Squeal Noise

Service

Category Brake

Section Brake (front) Market USA

Applicability

YEAR(S) MODEL(S) ADDITIONAL INFORMATION

2025 - 2026 4Runner, 4Runner HV

2024 - 2026 Land Cruiser

OBSOLETE NOTICE

February 12, 2026: This bulletin is now obsolete. Please see T-SB-0006-26.

 

[Todd_Limited]

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 CODEDESCRIPTIONTIMEOFPT1T2BR2503R & R Front LH & RH Shim Kit, and Brake Pad Kit0.904945-601009199


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 NUMBERNEW PART NUMBERPART NAMEQTY04465-6038004465-34040Pad Kit Disc Brake, Front104945-6010004945-0C060Shim Kit, Anti Squeal, Front (Grease Included)104947-6015004947-0C030Fitting Kit, Disc Brake Front (Anti-rattle Spring)108887-80609Brake Caliper Grease1


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 NUMBERQTYDisc Brake Piston Spreader Wide09719-77020 / 09719-770501


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



Original Document:

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 CODEDESCRIPTIONTIMEOFPT1T2BR2503R & R Front LH & RH Shim Kit, and Brake Pad Kit0.904945-601009199


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 NUMBERNEW PART NUMBERPART NAMEQTY04465-6038004465-34040Pad Kit Disc Brake, Front104945-6010004945-0C060Shim Kit, Anti Squeal, Front (Grease Included)104947-6015004947-0C030Fitting Kit, Disc Brake Front (Anti-rattle Spring)108887-80609Brake Caliper Grease1


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 NUMBERQTYDisc Brake Piston Spreader Wide09719-77020 / 09719-770501


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



Original Document:

Just got off the phone with Toyota's Brand Engagement Center and this has been superseeded by T-SB-0046-26. She was supposed to send me a copy and instead sent the T-SB-0046-25 version.

 

[Van Solo]

Did it work?

Sorry mentioned elsewhere it took shaving the pads like the old dirty trick on trucks back in the day ! So ya experienced mechanics know this !

 

[morsk]

Just finished reading this thread (and another similar one)

Just curious: I know the TSB has been extended to the 2026 4Runners, but have any 2026 model owners actually experienced this issue? I don't think I've seen any '26 owners bringing this up (yet)

 

[OG6G]

I‘ve got a 2026 and have about 1300 miles and constantly put it in reverse over 10 times a day as I use it for my work vehicle as a sales rep. Also , the truck lives outside in rainy Seattle. I intentionally turned off the music to listen for strange noises for the first 1k miles and so far I haven’t heard anything. Hope I didn’t just jinx myself lol.

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