Hyundai bulletin 23-01-067H-1
What it saysThis updated Vehicle Control Unit (VCU) software package includes the following: ⢠Brake light logic update for regenerative braking. ⢠i-Pedal mode operation logic update. ⢠12V battery saver logic update allows… NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service bulletin dated Oct 9, 2023, received Nov 7, 2023, about the parking brake — 2 documents under this number. It names 3 model years (2022–2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
This updated Vehicle Control Unit (VCU) software package includes the following: ⢠Brake light logic update for regenerative braking. ⢠i-Pedal mode operation logic update. ⢠12V battery saver logic update allows charging from EV Battery as low as 10% SOC when parked. The Ioniq 5 update includes these earlier items that Ioniq 6 had included from start of production: ⢠EPB (Electronic Parking Brake) auto engagement when shift into Park/auto disengagement shift out of Park when shifting to D or R while brake pedal is engaged. ⢠DTE (Distance to Empty) strategy. ⢠Snow road surface performance. ⢠Air conditioning performance during AC slow charging. ⢠Enhance charging sequence.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-01-067H-1 | Service bulletin | Oct 9, 2023 | 10244987 | PDF, 298 KB |
| 23-01-067H-1 | Service bulletin | Oct 9, 2023 | 10244986 | PDF, 506 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 3 model years this bulletin names have filed 851 complaints with NHTSA since 2015. 165 of them name Power Train — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
The ioniq 5 has a one pedal driving mode, where the car will come to a complete stop without needing to press the brake pedal, similar to other EV's. In this mode, the gas pedal operates differently then in a conventional car - pressing the pedal approximately 1/3 of the way down represents neutral, where the car coasts.
2022 Hyundai Ioniq 5 · Service Brakes · filed with NHTSA Mar 2, 2023 · ODI 11509793
Heard a "pop" sound and the car shortly after said "Check EV system." A few minutes later the car beeped loudly said "Stop vehicle and check power supply." A ODB scanner reported a P1A9096 code. This issue makes the vehicle inoperable with little warning
2022 Hyundai Ioniq 5 · Power Train · filed with NHTSA Mar 1, 2023 · ODI 11509776
brake lights do not come on when the car is in regenerative braking or driving mode and the driver is touching the gas pedal. Drivers following the car are not aware the car is actually braking not coasting. This is causing a rearending hazard.
2023 Hyundai Ioniq 5 · Service Brakes · filed with NHTSA May 29, 2023 · ODI 11524271
In depth: 2023 Hyundai Ioniq 5 transmission and drivetrain problems → · 2022 Hyundai Ioniq 5 transmission and drivetrain problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the parking brake
Source: same model, same component group1 other manufacturer communication filed against these Hyundai models under the same component group (parking brake), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 23-01-039H | Service bulletin | Jun 27, 2023 | This bulletin applies the following continuous improvements from a Vehicle Control Unit (VCU) Software Update. An “Owner’s Manual Supplement… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Hyundai, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai 23-01-067H-1 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 23-01-067H-1 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Hyundai warranty extension on file lists the ones Hyundai has filed.
Which vehicles does 23-01-067H-1 cover?
The manufacturer filed it against 3 model years: 2023 Hyundai Ioniq 5, 2022 Hyundai Ioniq 5, 2023 Hyundai Ioniq 6. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built 4 Oct 2021 – 19 Jul 2023; built 14 Dec 2022 – 21 Aug 2023 — the build date is on the certification label in the driver’s door jamb.