TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).
full bulletin at NHTSA ↗2024 Kia EV9 electrical problems
moderate 94 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
94
Recalls
0
Avg fix
$850
When does it fail?
Of the 94 electrical complaints filed for the 2024 Kia EV9, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Electrical accounts for 46% of every owner complaint on file for this vehicle — the dominant problem area across 9 categories tracked.
Owners have filed 94 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing USB for installation on applicable Kia vehicles. The software downloads and USB preparation process is similar across all supported platforms; however, in‑vehicle installation procedures vary by head unit type.
full bulletin at NHTSA ↗VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC360) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV9 vehicles to reposition an electrical connector in the driver's footwell to prevent accidental disconnection by the driver's foot.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: EF31 CONNECTOR BRACKET REPLACEMENT (SC360) - This bulletin provides information on repositioning the EF31 electrical connector by replacing the bracket with an improved one for certain 2024MY-2026MY EV9 (MV, MVa) vehicles within the production ranges listed in the table of this bulletin. The EF31 electrical connector, located near the top of the driver’s footrest, may become disconnected due to interference from the driver’s foot. If this electrical connector becomes disconnected, the 12V battery may discharge, which can cause the service warning light and/or “check electric vehicle system” message to illuminate. If the vehicle continue
full bulletin at NHTSA ↗VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (SC360) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign on certain 2024-2026 MY EV9 vehicles manufactured from September 25, 2023 through April 29, 2025 to reposition an electrical connector in the driver’s footwell to prevent accidental disconnection by the driver’s foot.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2024 Kia EV9 electrical system shows widespread problems across battery management, instrument cluster display, and charging architecture. The most frequent complaint is the instrument cluster display going completely blank during normal driving, eliminating speedometer, turn signal feedback, blind spot warnings, and all critical gauge information. Owners report this happens randomly at low mileage (500 miles and up) and persists even after Kia's recall software update (24V757000). The only consistent workaround is turning the vehicle off for 30 minutes to several hours.
The Battery Management System (BMS) is triggering sudden power cutoffs and "turtle mode" activation (severe speed reduction to 30–40 MPH from highway speeds) without warning, even when the dash shows 15–82% charge remaining. Owners report complete battery pack failures requiring replacement; one vehicle sat at a dealership for 49 days awaiting a new battery. Charging failures are documented—vehicles charging only 3–4% overnight, stopping at partial capacity (69–80%), and refusing to connect to DC fast chargers. A few complaints describe unintended acceleration from adaptive cruise control malfunction and loss of power braking. The 12-volt auxiliary battery can deplete unexpectedly, leaving the vehicle unable to shift into park or engage the electronic parking brake if power is lost during driving. Long repair waits (23+ days, sometimes over a month) and unavailable loaner vehicles compound owner frustration.
Failure modes owners describe
Instrument Cluster Display Going Blank
The digital instrument cluster display that shows speed, range, gear selection, and other critical driving information goes completely blank or partially blank (showing only gear indicator and parking brake icon). The heads-up display also becomes non-functional. Turn signals do not display or sound audible alerts. The issue typically resolves after the vehicle is turned off and left for 30 minutes to several hours.
When: Occurs randomly, sometimes within first few weeks to months of ownership; has happened at less than 900 miles, around 500 miles, and up to 7 months of ownership
Symptoms owners cite: Instrument cluster screen completely blank except for gear indicator; No speedometer display; Heads-up display blank; Turn signal indicators and sounds not functioning; No blind spot warnings or camera display; No range or state of charge information visible; No seatbelt warnings or other safety alerts; Climate and infotainment screens may continue working while gauge cluster is blank; Backup camera view stays on when shifting out of reverse
Repairs/costs cited: Owners report dealerships attempting software updates (mentioned as NHTSA Recall 24V757) but issue persists even after updates. Some dealerships report needing special tools and unable to complete repairs for extended periods. Dealers state they cannot reproduce the issue on demand. One complaint mentions ICCU unit replacement.
Recalls/TSBs owners mention: NHTSA Campaign Number: 24V757000 (Electrical System) addressed this issue, but complaints indicate the recall fix has not resolved the problem for all owners. Dealerships claim software updates are required but also mention the need for in-person service despite recall letter stating software updates could be done without dealership visit.
Battery Management System (BMS) Faults with Sudden Power Loss
The vehicle's Battery Management System detects cell imbalance (cell deviation) and state of charge mismatch between dashboard display and actual usable energy. When a single battery cell voltage drops below safe threshold or BMS detects a fault, the system can either enter 'turtle mode' (drastically reduced power/speed) or shut down entirely without warning, even when dashboard shows significant charge remaining (15% to 82% battery reported). Loss of power steering and braking assistance can result from complete shutdown.
When: Occurs within first three weeks of ownership (at 850 miles, at 15% and 82% battery levels on different occasions); as early as 12,000 miles
Symptoms owners cite: Sudden entry into 'turtle mode' reducing speed from 80-85 MPH to 30-40 MPH without warning; Complete power shutdown mid-drive even with 15%-82% battery remaining; Vehicle unresponsive to acceleration after shutdown; Loss of power steering and braking assistance; Dashboard indicates sufficient charge while system limits power; Vehicle entering reduced-power mode during normal driving (merging, highway speeds); Critical battery warning messages displayed
Codes mentioned: Battery Management System warning
Repairs/costs cited: Owners report vehicles towed to dealership; service teams investigating but no diagnosis provided in many cases. One owner reports vehicle in dealership for 49+ days awaiting full high-voltage battery replacement. Another dealership had vehicle for 23 days with conflicting information about cause. Repeated restart attempts sometimes required to restore normal operation.
Recalls/TSBs owners mention: Kia corporate contacted in multiple cases; one owner opened buyback/refund request with Kia corporate. Manufacturer provided case numbers but no assistance offered in one instance. No specific recall or TSB mentioned for this issue by name.
High-Voltage Battery Failure
Complete failure of the high-voltage battery pack rendering the vehicle completely inoperable. Battery will not charge or charge to only a fraction of capacity (e.g., 69%, 40 miles range on 100% charge). Battery Management System sends critical warnings. Battery cells fail. Vehicle cannot be driven, charged, or function.
When: At 850 miles, 23 days into ownership, 6,987 miles, 7 months of ownership
Symptoms owners cite: Battery will not charge past certain percentage (69%, 80%); Loud clicking sounds from undercarriage; Vehicle will not charge on fast chargers (only on home charger in some cases); Vehicle suddenly dies even with full battery; Battery charges to 100% but only provides ~40 miles of range; Unaccounted-for battery capacity (e.g., 40 kWh of 99 kWh unavailable); Battery pack shows only 50 kW usable of full capacity; Critical EV battery warnings
Codes mentioned: Critical EV Battery Warning, Suspected condition with Battery Management System, Check electrical system
Repairs/costs cited: Owners report vehicles at dealerships for 23+ days, 49+ days, and over one month awaiting diagnosis and repair. Dealerships indicate full battery pack replacement required. One owner reports dealership waiting over three weeks for specialist with no one yet assigned to case. Parts costs not cited. One vehicle noted as having no communication between components.
Recalls/TSBs owners mention: Kia corporate notified; no assistance offered in some cases. One owner opened Virginia Lemon Law claim requesting full repurchase after 49 days out of service. No recalls or TSBs mentioned by name for battery failures.
Charging System Malfunction
Vehicle fails to charge properly despite being connected to charging equipment. Battery charges very slowly (3-4% overnight) or stops charging at a low percentage. Vehicle loses ability to communicate with chargers after service attempts. Does not charge on DC fast chargers but may charge on home charger.
When: Within first few days of ownership (3-4 days); at various points during ownership
Symptoms owners cite: Vehicle charges only 3-4% overnight despite full charge cycle; Battery stops charging at 69% or 80%; Fast charger will not connect; Vehicle does not communicate with charging equipment; Loud clicking from undercarriage during charging; Home charger works but DC fast chargers do not; Charging notification displays 'Connected' then 'Disconnected' repeatedly; Vehicle dies at charging station
Codes mentioned: Battery Management System warning, Critical EV Battery Warning
Repairs/costs cited: Dealership service indicated issue resolved after initial visit but problem persisted. One vehicle at dealership for multiple days while charging issues and communication problems investigated. Dealership had trouble connecting car to fast charger.
Recalls/TSBs owners mention: No specific recall or TSB mentioned for charging issues.
Unintended Acceleration and Loss of Braking Control
Vehicle accelerates without driver input or continues accelerating unexpectedly. In one case, adaptive cruise control malfunction caused hard acceleration to 90-100 MPH when vehicle ahead moved out of lane. In another case, power brakes failed and vehicle maintained speed despite taking foot off accelerator. Vehicle lunged forward during parking.
When: Early in ownership
Symptoms owners cite: Vehicle lunges forward during parking maneuver; Unintended hard acceleration to 90-100 MPH from adaptive cruise control malfunction; Power brakes fail ('stop vehicle and check brake system' warning displays); Vehicle continues at current speed when accelerator pedal released; Vehicle quickly accelerates when instrument panel returns to normal after going blank; Adaptive cruise control activates without input
Codes mentioned: Stop vehicle and check brake system
Repairs/costs cited: One case resolved after turning vehicle off for 5-10 minutes; brake system warning cleared. Vehicle towed for investigation in another case.
Recalls/TSBs owners mention: No recalls or TSBs mentioned.
Sudden Loss of Propulsion While Driving
Vehicle suddenly loses acceleration ability and is unable to drive above slow speeds (12-40 MPH) even with accelerator fully depressed. Vehicle automatically shifts to neutral. 'Power Limited' or 'Check Electrical System' warning messages display. Occurs typically during hot daytime conditions.
When: During normal highway driving
Symptoms owners cite: Sudden loss of acceleration; Speed stuck at 12-25 MPH despite accelerator input; Automatic shift to neutral; Vehicle slows drastically and dangerously on highway; 'Power Limited' warning message on dashboard; 'Check Electrical System' warning message; Issue typically occurs during hot daytime driving conditions; Occurs multiple times, unpredictably
Codes mentioned: Power Limited, Check Electrical System
Repairs/costs cited: Dealership inspected multiple times but could not reproduce problem. Owner recorded multiple videos of the issue.
Recalls/TSBs owners mention: No recalls or TSBs mentioned.
12-Volt Battery Depletion and Vehicle Immobilization
The 12-volt auxiliary battery becomes depleted, preventing vehicle systems from functioning. Vehicle cannot be started without jump-start. When 12-volt battery is depleted, electronic parking brake, gear shift, and park button are inoperative, creating a safety hazard if vehicle loses power while in motion.
When: After vehicle turned off before shifting into park
Symptoms owners cite: 12-volt battery depleted, vehicle requires jump-start; Vehicle continues rolling after being turned off; Electronic park button does not function without power; Electronic parking brake inoperative without 12-volt power; Gear shift does not function (vehicle may be in gear other than park when power lost); Vehicle rolls forward uncontrolled after shutdown; No warning lights prior to issue
Repairs/costs cited: Vehicle required jump-start to restore 12-volt power. No damage or injury occurred in reported case but incident occurred in repair facility.
Recalls/TSBs owners mention: No recalls or TSBs mentioned. No fail-safes present to prevent vehicle movement after power loss.
Intermittent Steering Wheel Vibration at Highway Speeds
Vehicle exhibits substantial steering wheel vibration while driving at highway speeds. Issue persists or recurs even after multiple wheel balancing attempts.
When: Early ownership (less than 30 days)
Symptoms owners cite: Substantial steering wheel vibration at highway speeds; Vibration persists after two separate wheel balance procedures
Repairs/costs cited: Two separate wheel balance procedures performed by repair facility but issue not fully resolved. Issue occurred concurrently with 12-volt and high-voltage battery failures.
Recalls/TSBs owners mention: No recalls or TSBs mentioned.
Synthesized from 94 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 8 most recent
I would also like to highlight the serious safety concern due to cell deviation (imbalance) along with SOC (State of Charge) mismatch as per my car's BMS (Battery management system) which is present in my vehicle and shared with Kia corporate. In an electric vehicle, the high-voltage battery cells, the Battery Management System, and the battery coolant system function as a single integrated…
My EV9 lunged forward very abruptly when I was parking. I had to slam on the brakes before my vehicle crashed into the building in front of me. My vehicle also lost the signal (blank screen while driving ) the same day my car lunged forward. I could not tell how fast or slow I was going. I pulled over and restarted the vehicle or and my screen came back on. I began driving for maybe 4 minutes…
Entire dashboard went blank and was not visible
Our KIA EV9, which HAS HAD the software update installed to address NHTSA Recall Number 24V757 (Kia safety recall SC326) has again had the driver's instrument panel screen come up blank when the car was started. This is identical to behavior we observed multiple times before taking the car to the dealership for the software update. To resolve the issue, the car was turned off and permitted to…
The contact owns a 2024 Kia EV9. The contact stated while attempting to start the vehicle, the contact became aware that the instrument panel was dark. The vehicle was towed to the dealer where it was diagnosed that the instrument panel had failed, and a system update was needed. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to…
On November 5th, 2024 I exited a store and my vehicle instrument panel was black when I turned my vehicle on. I turned my vehicle off and on several times trying to get the panel to work. I could also not control the headlights or turn signal with the manual controls either. It was still daylight hours and I was 2 miles from home so I decided to try and see if the vehicle could be driven home. I…
I started my EV9 tonight and the main instrament pannel would not turn on. I was able to drive but could not see my speedometer or any other safty information on the screen. I was not notified about the recall until filing this report.
I was driving down the highway at approximately 60 mph with approximately 40% charge to the high voltage battery. While moving the car suddenly stopped accelerating and switched to neutral automatically. The instrument panel provided no audible alerts of a problem and in relatively small text stated "check electrical system" The brakes and the rest of the car's electronics worked such as turn…
Had electrical trouble with your 2024 Kia EV9?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2024 Kia EV9?
It's a documented issue but not catastrophic. 94 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 94 complaints filed, electrical issues most often appear around 8,306 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2024/Kia/EV9.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.