Kia bulletin PS750
What it saysPITSTOP: AWD SYSTEM CONCERN DUE TO TIRE CIRCUMFERENCE - This Pitstop provides information regarding potential concerns with the All-Wheel-Drive (AWD) system due to tire sizes of differing circumference. NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Sep 25, 2023, received Oct 1, 2023, about the suspension. It names 39 model years (2016–2024). 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 communicationPITSTOP: AWD SYSTEM CONCERN DUE TO TIRE CIRCUMFERENCE - This Pitstop provides information regarding potential concerns with the All-Wheel-Drive (AWD) system due to tire sizes of differing circumference. Some customers may complain of a chatter sensation felt in the drivetrain of the vehicle and/or the failure of drivetrain component(s). A difference in tire size (width, aspect ratio, construction, rim diameter etc.) may be the cause.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| PS750 | Service bulletin | Sep 25, 2023 | 10242913 | PDF, 95 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 39 model years this bulletin names have filed 8,464 complaints with NHTSA since 2015. 1,135 of them name Power Train, Steering — 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.
On the 2016 Kia Sorento, the 42 owners who gave an odometer reading for Power Train reported it at a median of 75,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owns a 2016 Kia Sorento. The contact stated that the vehicle could be shut off while it was engaged in any gear. On several occasions, the contact shut off the vehicle without it being parked and the vehicle rolled away. The last time the failure occurred, the contact fell to the ground while attempting to get in the vehicle.
2016 Kia Sorento · Power Train · filed with NHTSA Feb 10, 2016
On 05/03/21 approx. 2:40 PM ct I was excelling to enter highway mopac north; austin, tx; when my car became sluggish; I pulled over, to shoulder, ironically tx roadside assitance pulled in behind me - we couldn't determine the issue - I was exiting the next exit driving to jiffy lube on anderson/spicewood; dialogue screen stating issue…
2021 Kia Seltos · Power Train · filed with NHTSA May 13, 2021
The drive train and motor slow to a near stop in traffic when trying to clear a lane and makes it very dangerouos for other traffic to have to wait for me to clear a lane. There is something wrong and we complained about this before the warranty ran out, but they could not find anything. The car stops in traffic unexpectedly.
2022 Kia Sorento · Power Train · filed with NHTSA Mar 11, 2026
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 suspension
Source: same model, same component group6 other manufacturer communications filed against these Kia models under the same component group (suspension), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| WTY047 | Warranty extension | Sep 11, 2026 | WARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM (WTY047) - This document is a Reimbursement Request form that was mailed with the customer l… |
| TSB_CHA127V | Service bulletin | Mar 5, 2025 | TECHNICAL SERVICE BULLETIN: REAR SHOCK ABSORBER REPLACEMENT - This bulletin provides information to address vehicles that may be exhibiting… |
| WTY040 | Warranty extension | Sep 21, 2024 | TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: SELF-LEVELING REAR SHOCK ABSORBER INSPECTION/REPLACEMENT (WTY040) - This bulletin h… |
| TSB | Service bulletin | Sep 21, 2024 | TECHNICAL SERVICE BULLETIN: FRONT STRUT BEARING & SPRING PAD REPLACEMENT - This bulletin has been revised to include additional information.… |
| TSB_CHA121_R1 | Service bulletin | Jul 26, 2024 | TECHNICAL SERVICE BULLETIN: FRONT STRUT BEARING & SPRING PAD REPLACEMENT - This bulletin has been revised to include additional information.… |
| TSB_CHA113_R1 | Service bulletin | Jul 25, 2023 | TECHNICAL SERVICE BULLETIN: REAR SHOCK ABSORBER ASSEMBLY NOISE - This bulletin has been revised to include additional information. New/revis… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kia, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia PS750 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 PS750 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.
Which vehicles does PS750 cover?
The manufacturer filed it against 39 model years: 2024 Kia EV6, 2023 Kia EV6, 2022 Kia EV6, 2024 Kia K5, 2023 Kia K5, 2022 Kia K5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.