TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, and the transmission oil cooler is transferred to the new transmission.
full bulletin at NHTSA ↗2023 Kia Sportage powertrain problems
severe Owners of the 2023 Kia Sportage have filed 15 NHTSA complaints about the powertrain at roughly $2,500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Complaints
15
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2019 Sportage | 7 |
| 2022 Sportage | 3 |
| 2023 Sportage (this page) | 15 |
| 2024 Sportage | 3 |
| 2025 Sportage | 6 |
1crash
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain 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.
This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: 4WD COUPLING ACTUATOR ASSEMBLY REPLACEMENT - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to replace the AWD coupling actuator assembly on some 2021-2024MY Kia AWD models listed on page 4. The affected vehicles may exhibit an inoperative AWD system (also referred to as 4WD) capability concern which may be caused by abnormal wear of the motor brushes inside the actuator assembly. This condition will cause the warning lamps on the instrument cluster to illuminate with stored DTC(s) P195800 and/or P19600.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: 4WD COUPLING ACTUATOR ASSEMBLY REPLACEMENT - This bulletin provides information to replace the AWD coupling actuator assembly on some 2021-2023MY Kia AWD models listed on page 4. The affected vehicles may exhibit an inoperative AWD system (also referred to as 4WD) capability concern which may be caused by abnormal wear of the motor brushes inside the actuator assembly. This condition will cause the warning lamps on the instrument cluster to illuminate with stored DTC(s) P195800 and/or P19600.
full bulletin at NHTSA ↗PITSTOP: 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.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report a troubling cluster of powertrain failures across 15 separate 2023 Sportage complaints. The most dangerous involve transmission failures: vehicles that lose drive power without warning, fail to shift into the selected gear, or remain stuck in the prior gear (Reverse when Drive is selected). One documented case involved catastrophic Shift-by-Wire logic failure where TCM software corrupted and a rear-view display hung, blocking the gear-position indicator—owner collided as a result. Another owner lost acceleration on a downhill interstate merge, then experienced violent jerking and loud popping with every gear change afterward.
Engine failures are equally severe: multiple owners report engines that misfire, sputter, and stall during highway driving, sometimes becoming unable to restart. One owner paid $8,000 for the first repair, then experienced the same failure three more times in 7 months; dealership blamed fuel quality despite failures across different gas stations. An owner reported metal shards in transmission fluid and erratic lunging at highway speed—transmission required replacement.
Erratic braking is documented: AEB system engages without cause, in one case with such force that backseat items flew forward. One vehicle went into limp mode with no brakes on highway. Several owners report dealerships unable to duplicate intermittent failures, leaving problems undiagnosed. Owners note that some issues recurred within days or weeks of dealership repairs.
Failure modes owners describe
Loss of drive / transmission fails to engage
Vehicle loses motive power or fails to shift into selected gear. In several cases, transmission remains stuck in prior gear (e.g., Reverse when Drive selected) despite driver input. Shift-by-Wire (SBW) logic failure documented in at least one case. Vehicle may go into limp mode and refuse to accelerate.
When: During normal driving, low-speed maneuvers, merging, or from a stop. One case at highway speed (70 mph). Some occur within days of purchase or within weeks of dealership repair.
Symptoms owners cite: Unable to accelerate when pressing gas pedal; Transmission fails to engage selected gear; Vehicle stuck in prior gear (e.g., Reverse) despite shift input; Vehicle goes into limp mode with no power; Loss of motive power without warning lights
Codes mentioned: Transmission Control Module (TCM) software corruption detected
Repairs/costs cited: Dealership performed TCM 'Clear and Relearn of Adaptive Values' in one case. Injector replacement performed in one case. Multiple owners report dealership unable to duplicate failure or diagnose issue. Some report repeated repairs that do not resolve the problem.
Recalls/TSBs owners mention: Recall SC270 and SC275 mentioned by one owner but not applied. Owner states they were never notified of these recalls. No recall cited by dealership in other cases despite powertrain-related recalls existing for this model year.
Jerking, hesitation, rough shifts
Transmission jerks, hesitates, or shifts roughly during acceleration or normal driving. Owner reports loud, jerky gear changes with popping noises. Vehicle struggles to shift properly especially when accelerating from a stop or merging.
When: During acceleration from stop, merging into traffic, gear changes, and various speeds. One case involved repeated jerking for several days after initial failure on interstate.
Symptoms owners cite: Jerking or hesitation when accelerating from a stop; Loud, jerky, rough gear changes; Loud popping noise during shifts; Violent jerking during gear changes; Unpredictable or delayed acceleration response; Check engine light appears and returns even after O2 sensor replacement
Codes mentioned: Check engine light (specific codes not provided by owners)
Repairs/costs cited: O2 sensors replaced in one case without resolving jerking issue; check engine light returned. One owner mentions CVT or transmission fluid/lubricant pump as suspected cause. No repair completed in most cases.
Recalls/TSBs owners mention: Dealership claims no active recalls tied to VIN despite owner research showing powertrain and fluid pump recalls for this model year. Issue deemed ongoing, not yet officially reviewed by manufacturer.
Engine misfires and stalls
Engine misfires, sputters, and shuts off unexpectedly while driving. Vehicle becomes unable to restart after stall in some cases. Dealership has blamed poor fuel quality despite multiple occurrences across different gas stations and repeated repairs.
When: Multiple occurrences: 11/23/2024, 3/05/2024, 5/05/2024 reported in one case; another case reports 4 misfires in 7 months; one case on highway at 70 mph; one case shortly after recall service.
Symptoms owners cite: Engine misfires; Engine sputters during highway driving; Engine stalls and shuts off without warning; Unable to restart vehicle after stall; Vehicle decelerates to ~10 mph despite driver input; Vehicle shuts down with dashboard message; Strong smell of gasoline inside cab; White smoke through exhaust
Codes mentioned: No specific codes provided by owners
Repairs/costs cited: First incident ~$8,000, second ~$1,300, third covered under warranty. Vehicle towed to dealership multiple times. Fuel injector replaced in one case. Engine shut-down feature appears to be safety mechanism. Within 13–14 days of repair, failure reoccurred in one documented case. Owner states vehicle still experiencing misfires as of latest report.
Recalls/TSBs owners mention: Dealership blamed poor fuel quality (three different gas stations) despite repeated failures. No recall mentioned. Third incident dealership took responsibility but did not prevent recurrence.
Transmission metallic debris and fluid degradation
Metal shards found in transmission fluid indicating internal transmission damage. Transmission fluid does not circulate properly (overheats), preventing gear changes and triggering vehicle shutdown.
When: One case at highway speed with erratic lunging; one case with oil not circulating and transmission unable to change gears.
Symptoms owners cite: Vehicle lunges erratically down highway; Metal shards in transmission fluid; Transmission will not change gears; Transmission fluid overheats; Dashboard message vehicle is shutting down; No warning lights prior to failure
Repairs/costs cited: One case required full transmission replacement. Technician noted it was surprising the vehicle could drive given the severity of fluid contamination.
Recalls/TSBs owners mention: Recall 23V531000 mentions electric oil pump assembly overheat risk and vehicle fire hazard. One owner states their vehicle matches this description but dealership claims it is not affected. No recall applied despite symptoms aligning with recall criteria.
Automatic Emergency Braking (AEB) malfunction
AEB system engages erroneously without driver input or external trigger, causing sudden unintended braking. System engages with audible warning. In one case, vehicle 'slammed on brakes' so hard items in backseat flew forward. Vehicle also reportedly wobbled while driving 75 mph.
When: Multiple erroneous engagements during various speeds, including one incident at 75 mph. One prior incident where everything in backseat flew forward.
Symptoms owners cite: AEB system engages without driver input; Audible warning chime accompanies erroneous engagement; Vehicle slams on brakes with extreme force; Vehicle wobbles at 75 mph; AEB has slammed on brakes 3 times (one owner); Issue happens randomly
Repairs/costs cited: Dealership unable to duplicate failure on two separate occasions in one case. Vehicle currently at dealer. Another case reports several weeks at dealership for brake work; problem not resolved.
Recalls/TSBs owners mention: Manufacturer notified and conducted review but provided no assistance in one case.
Unintended acceleration
Vehicle accelerates on its own without driver input. Occurs while driving straight, making turns, and when attempting to drive uphill. Vehicle also has difficulty maintaining speed uphill, dropping significantly from intended speed.
When: Occurs randomly during normal driving, turning, and hill climbing. Owner reports not owning vehicle even one year.
Symptoms owners cite: Vehicle accelerates on its own; Acceleration occurs while driving straight; Acceleration occurs while making turns; Vehicle struggles to drive uphill; Gradual loss of power when approaching hills (25 mph drops to 10–15 mph); Unintended acceleration extremely scary, especially with children in vehicle
Repairs/costs cited: No repair information provided; issue ongoing.
Transmission slip or hesitation from stop
Transmission slips or hesitates when shifting from stop to first gear, creating delay or loss of power during initial acceleration. Occurs inconsistently (approximately once per week).
When: From a dead stop before going into first gear. Occurs approximately once per week.
Symptoms owners cite: Transmission slips from stop; Hesitation when shifting to first gear; Delayed initial acceleration; Dangerous when turning left across oncoming traffic
Repairs/costs cited: Dealership inspected for two days but could not get transmission to slip. No diagnostic codes thrown, no warning lights.
Synthesized from 15 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
Frequently while driving my 2023 Kia shortage Hybrid will accelerate on its own. This happens randomly while driving straight as well as making turns. My suv also has a vary hard time driving uphill. If im driving at 25 mph when approaching the hill, my car then gradually drops down to 10-15 mph.This is extremely scary especially when driving with my children in the car. I haven’t owned the…
My 2023 Kia Sportage AWD has several ongoing safety issues that have been happening for over a year. The car stalls or hesitates at low speeds and during acceleration. I hear grinding or whining noises from the front end and drivetrain. My brakes wore out very early and still feel inconsistent, and the automatic braking acts unpredictable. The AWD system sometimes feels unstable when I try to…
Purchased vehicle used 11/18/2023. Two days later vehicle went into limp mode on the highway. No brakes. Engine continued to shut off. Towed to dealer. Replaced injector. 11000 miles. 12/27/23 Vehicle was returned. 11/14/2024 Vehicle went into limp mode. Engine would not run. Vehicle was blowing white smoke thru exhaust. Another highway incident. Towed to dealership. This condition is very…
Had powertrain trouble with your 2023 Kia Sportage?
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 powertrain problem on the 2023 Kia Sportage?
It's a meaningful issue. 15 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Based on the 15 complaints filed, powertrain issues most often appear around 21,638 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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/2023/Kia/Sportage.
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.