# Service bulletin 21\-BR\-001H

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10189987
- Published by NHTSA: 2021\-04\-06
- Manufacturer's number: 21\-BR\-001H
- Manufacturer's date: 2021\-03\-10
- NHTSA component: SERVICE BRAKES; EQUIPMENT

## NHTSA's summary

This bulletin provides a front brake pad backing plate grease application procedure to address squealing during braking.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189987-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189987-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Equipment and accessories

## Vehicles listed

- 2020 to 2021 HYUNDAI KONA

## Recalls for the same vehicles and component

- [2020593](/recalls/tc/2020593.md), 2020-12-02: Brakes
- [20V748000](/recalls/nhtsa/20V748000.md), 2020-12-01: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE
- [20V022000](/recalls/nhtsa/20V022000.md), 2020-01-17: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [24\-01\-009H](/bulletins/10251276.md), 2024-03-05, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES. This bulletin provides the service procedure to: 1\) Upgrade the IBU/BCM \(Integrated Body Control Unit/Body Control Module\) to revise the OEM Hyundai burglar alarm system operation and ignition start logic and 2\) Install two anti\-theft decals for the front windows. Additional decals may also be installed in the rear windows at customer’s discretion.
- [24\-01\-009H](/bulletins/10251275.md), 2024-03-05, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES. Hyundai has launched an anti\-theft software upgrade and window decal campaign \(Campaign 993\), combined with an anti\-theft steering wheel lock campaign \(Campaign P32\), and anti\-theft ignition cylinder protector campaign \(Campaign 9A5\) in response to an increase in thefts of certain 2011\-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be upgraded with the software \(Campaign 993\), Hyundai is offering customers an anti\-theft ignition cylinder protector to be installed on their vehicle. This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock anti\-theft solutions available from HMA through Hyundai dealers.
- [23\-BE\-007H](/bulletins/10240087.md), 2023-08-02, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundai’s Navigation Updates page. The current version of Google Maps has 10 times the data transmission compared to the previous version. As a countermeasure, an update with a frame skip logic has been added to resolve the data congestion with Google Maps.
- [23\-01\-014H\-5](/bulletins/10240081.md), 2023-08-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES. Hyundai has launched an anti\-theft software upgrade and window decal campaign \(Campaign 993\), combined with an anti\-theft steering wheel lock campaign \(Campaign P32\), in response to an increase in thefts of certain 2011\-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be updated with the software \(Campaign 993\), Hyundai is offering customers steering wheel locks at the dealer \(Campaign P32\).
- [22\-AT\-007H](/bulletins/10213721.md), 2022-06-10, Service bulletin: POWER TRAIN; EQUIPMENT. Certain vehicles \(listed below\) equipped with 7\-speed Double Clutch Transmissions \(DCT\) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit \(TCU\) with revised logic, and/or replacing the Double Clutch.
- [22\-01\-043H](/bulletins/10213718.md), 2022-06-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE AND ENGINE COOLING. Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System \(CNDS\) software update. CNDS is to detect abnormal cylinder wall scuffing or noise of the engine block before potentially severe engine damage occurs. If abnormal noise is detected, the Malfunction Indicator Lamp \(MIL\) will blink continuously. In addition, DTC P1327 will be recorded in the ECM.
- [22\-01\-007H](/bulletins/10207807.md), 2022-02-08, Service bulletin: POWER TRAIN; EQUIPMENT. Certain vehicles equipped with 7\-speed Double Clutch Transmissions \(DCT\) may exhibit abnormal shifting caused by an out of specification input shaft snap ring. This bulletin outlines the procedures for inspecting for 1\-2 or 2\-1 shift shock and replacing the input shaft snap ring.
- [21\-EM\-004H](/bulletins/10190044.md), 2021-04-07, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps.
- [21\-BR\-002H](/bulletins/10190038.md), 2021-04-07, Service bulletin: SERVICE BRAKES; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides best practice recommendations when performing brake service procedures.
- [21\-01\-019H](/bulletins/10190032.md), 2021-04-07, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information related to the VCULDC\(Vehicle Control Unit \& Low DCDC Converter\) software update for KONA Electric\(OS EV\) vehicles. This update is also part of the high voltage battery monitoring logic improvement by optimizing software of each system.

JSON: [/v1/bulletins/10189987](/v1/bulletins/10189987)

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