TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Steering Column Housing, or Worm Gear Assembly. When the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm Gear Assembly on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit. On some ve
full bulletin at NHTSA ↗2011 Kia Optima steering problems
moderate Owners of the 2011 Kia Optima have filed 100 NHTSA complaints about the steering, typically surfacing around 82,000 miles at roughly $700 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See steering across all vehicles →
Failure mileage
Complaints
100
Recalls
0
Avg fix
$700
| Model year | steering complaints |
|---|---|
| 2008 Optima | 4 |
| 2009 Optima | 7 |
| 2011 Optima (this page) | 100 |
| 2012 Optima | 187 |
| 2013 Optima | 212 |
| 2014 Optima | 94 |
| 2015 Optima | 68 |
When does it fail?
Of the 100 steering complaints filed for the 2011 Kia Optima, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 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
Owners have filed 100 steering 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.
Among the 11 model years of Kia Optima in our records for steering problems, this one ranks #3 by owner-complaint volume.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering steering 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: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Steering Column Housing, or Worm Gear Assembly. When the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm Gear Assembly on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT - This bulletin has been revised to include additional information. This bulletin provides the procedure to replace the steering gear box yoke plug and assembly on some models listed below, which may exhibit a ticking noise while turning the steering wheel with the vehicle stopped. This condition is caused by a worn lining on the steering gear box yoke assembly.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
A persistent left-pull affects the 2011 Optima from delivery onward, requiring constant steering pressure to keep the car straight on highways. Owners have taken vehicles in for alignments 3 to 7+ times without permanent correction; dealers insist alignment specs are within factory limits, yet the pull returns quickly or never disappears. Tire wear concentrates on the outside edges despite repeated alignment, and owners report poor on-center steering feel and a loose, unresponsive wheel. Some owners say the issue improved slightly after KIA engineers intervened, tightened suspension, or updated electronic power-steering software, but deteriorated again within days or weeks.
A second failure mode surfaces around 60,000 to 90,000 miles: the steering column develops loud knocking, clicking, and rattling that worsens progressively, especially over bumps and at highway speeds above 50 mph. Owner research and dealer diagnostics point to a plastic steering coupler/gear wearing out inside the steering box—a $2–$4 part whose replacement costs $150–$600 in labor because the steering column must be partially disassembled. Warranty coverage typically expires at 60,000 or 100,000 miles before the noise becomes severe, leaving owners to pay out of pocket. One TSB (CHA060) addresses the coupler, but KIA denies coverage for vehicles exceeding mileage thresholds.
A smaller group of owners report steering wheel delays, notchy response, occasional lock-up with traction-control light activation, and in rare cases, complete steering seizure at highway speed. One owner replaced the entire front end (rack, pinion, struts, tie rods) for over $1,000 only to have the notchy feel return.
Same Kia Optima steering reports on nearby years: 2012 · 2013 · 2014
Failure modes owners describe
Left-pulling / Directional drift
Vehicle pulls persistently to the left, sometimes to the right, often severe enough to cross lane markings without constant steering input. Occurs from initial delivery through high mileage. Multiple alignment attempts fail to correct it permanently or at all.
When: From new through 347,000 miles; many owners report onset immediately after delivery
Symptoms owners cite: Vehicle drifts or pulls left on straights and highways; Requires constant steering pressure to maintain straight path; Pulling worsens at higher speeds; Tire wear on outside edges (abnormal wear pattern); Poor on-center feel; steering wheel feels loose or unresponsive; Issue recurs shortly after alignment correction
Repairs/costs cited: Dealers perform multiple alignments (3-7+ per owner); some temporary improvement; root cause remains unresolved. Owners cite strut replacement, control arm replacement, tire replacement, electronic steering module software updates, suspension tightening. One owner paid $1,402 for steering column replacement; another paid >$1,000 for tire set.
Recalls/TSBs owners mention: KIA TSB-032 mentioned (internal steering service bulletin); KIA has issued multiple alignment specification updates during early production years. KIA engineers validated handling issues in at least one case. Some dealers claim vehicle is 'within specs' or attribute to road crown. Owner #2 contacted KIA Consumer Protection, Georgia Consumer Protection, USDOT Traffic Safety, and Attorney General with no resolution.
Steering column noise and play (plastic coupling wear)
Steering column develops excessive play, knockin/clanking/clicking/rattling sounds that worsen over time. Most narratives identify a worn plastic steering coupler/gear inside the steering box as the root cause.
When: As early as 60,000 miles; progresses to higher mileage (252,000+ miles reported)
Symptoms owners cite: Loud knocking or clanking noise when turning steering wheel; Clicking/rattle from steering column, especially over bumps; Excessive play/free play in steering wheel before wheels respond; Thud or clunk felt when turning wheel left or right; Noise gets progressively louder; At highway speeds (50+ mph) steering column shakes violently; Loose feel; steering wheel appears to slip or engage intermittently
Repairs/costs cited: Dealers identify worn plastic steering coupler/gear ($2–$4 part, owners report) requiring steering column or upper steering assembly replacement. Labor costs range $150–$600+; one owner paid $181 for $20 part and labor; another quoted $300–$350; one dealer replacement cost $1,035 (parts only). Owners note warranty expired at 60,000 or 100,000 miles before symptom onset. TSB CHA060 (steering coupler) mentioned in one narrative, but not covered after mileage threshold.
Recalls/TSBs owners mention: TSB CHA060 exists (steering coupler replacement); however, warranty coverage denied after mileage threshold. No recall issued despite owners reporting widespread web presence of identical complaints.
Steering response delay and notchy feel
Steering wheel does not respond smoothly; delay or hesitation between steering input and wheel turning. Wheel feels notchy or jerky rather than fluid.
When: Mileage varies; reported at 25 mph in one case and at higher mileage (85,000–120,000 miles)
Symptoms owners cite: Delay in vehicle response to steering input; Notchy, jerky, or rough feel in steering wheel; Wheel does not turn smoothly; Hesitation before wheels engage
Repairs/costs cited: Independent mechanics diagnosed rack and pinion, tie rod, struts as initially suspected; subsequent investigation pointed to $2 plastic coupler. One owner paid over $1,000 to replace front end (rack, pinion, tie rods, struts) without resolving the issue.
Steering lock-up / traction control interaction
Steering wheel locks up or becomes difficult/impossible to turn; traction control warning light illuminates concurrent with or preceding steering failure.
When: Mileage in 2018 model year (complaint filed 2018); one case at 200,000 miles
Symptoms owners cite: Steering wheel suddenly locks; Traction control warning light illuminates; Steering becomes extremely difficult or unresponsive; Extra effort required to turn wheel; Warning light comes on and off intermittently, later more frequently
Repairs/costs cited: KIA dealer diagnosed internal malfunction of steering column assembly. One independent mechanic replaced steering column but failure recurred.
Steering wheel physical failure (seizure/jam)
Steering wheel becomes stuck, jammed, or seizes while driving, sometimes accompanied by abnormal sounds from steering mechanism.
When: 120,000 miles (one case)
Symptoms owners cite: Steering wheel suddenly seized while driving at highway speed; Abnormal sound from steering wheel after release; Steering wheel jammed or stuck
Repairs/costs cited: Vehicle previously had steering column and steering rack replaced at dealer; failure recurred post-repair.
Recalls/TSBs owners mention: Manufacturer made aware but provided no assistance reported.
Synthesized from 100 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
I bought a brand new 2011 Kia optima hybrid and the car pulls heavily to the left even on straight roads. I took the car to the dealer and they did an alignment and they say it is within specs but it acts the same. If you let go of the steering wheel for a couple seconds you're on the shoulder. This is a very serious safety issue. Second issue is that both driver and passenger seats were bolted…
The contact owns a 2011 Kia Optima. The contact stated while reversing, the contact heard a popping sound, and the steering wheel became difficult to turn. The vehicle was taken to an impendent mechanic, and he reinstalled the inner shaft. The dealer was contacted and stated that the vehicle needed to be diagnosed. The manufacturer was contacted, and a case was filed. The failure mileage was…
Had steering trouble with your 2011 Kia Optima?
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 steering problem on the 2011 Kia Optima?
It's a documented issue but not catastrophic. 100 complaints have been filed. Repairs average $700 and most owners catch it before it causes a breakdown.
At what mileage does the steering typically fail?
Across the 66 complaints that reported odometer mileage, most steering failures cluster between 60,000 and 103,000 miles, with the median around 82,000. A quarter of owners report trouble before 60,000; a quarter make it past 103,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $700 for steering 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 steering?
No active recalls currently cover steering 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/2011/Kia/Optima.
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.