WARRANTY BULLETIN: WTY002 (REVISION #1) - 2006~2010MY OPTIMA PASSENGER SEAT OCS SENSOR MAT WARRANTY EXTENSION (WTY002) - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE REPLACEMENT OF THE FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR MAT IN 2006 ~ 2010 MY OPTIMA (MG) VEHICLES. IF THE SENSOR MAT IS NOT WORKING PROPERLY, THE AIRBAG WARNING LIGHT ON THE CLUSTER WILL ILLUMINATE AND DTC(S) B1447, B1448, B1449 AND/OR B1450 MAY BE STORED. IF THE AIRBAG WARNING LIGHT IS ILLUMINATED AND ONE OR MORE THE ABOVE DTCS ARE STORED, FOLLOW THE REPAIR PROCEDURE OUTLINED IN THIS BULLETIN TO REPLACE THE OCS MAT. KIA IS EXTENDING THE WARRANTY FOR THE OCS SENSOR MAT FOR THE AFFECTED VEHICLES TO 15
full bulletin at NHTSA ↗2007 Kia Optima airbags problems
severe 57 complaints filed with NHTSA · avg repair $1,100 · see airbags across all vehicles →
Failure mileage
Complaints
57
Recalls
0
Avg fix
$1,100
5crashes
3injuries
When does it fail?
Of the 57 airbags complaints filed for the 2007 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
Of the 15 model years of Kia Optima we track for airbags problems, this one carries the most owner complaints on file — 57.
Airbags accounts for 34% of every owner complaint on file for this vehicle — the dominant problem area across 9 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering airbags 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.
OWNER LETTER: WTY002 OPTIMA - DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICAS HIGHEST COMMITMENT IS TO YOUR SAFETY. TO THAT END, KIA IS EXTENDING THE WARRANTY COVERAGE FOR THE FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR MAT TO 15 YEARS WITH UNLIMITED MILEAGE, STARTING FROM THE DATE OF FIRST SERVICE. THIS WARRANTY EXTENSION ADDRESSES FAILURES OF THE OCS SENSOR MAT AS REPORTED BY SOME VEHICLE OWNERS. THE SENSOR MAT IS INTENDED TO DETECT CHILD SEATS AND SMALL STATURE OCCUPANTS WHO COULD BE HARMED BY DEPLOYMENT OF THE PASSENGER FRONTAL AIR BAG. IF THE SENSOR MAT IS NOT WORKING PROPERLY, THE OCS WILL NOT SUPPRESS THE AIR BAG. ACCORDINGLY, IF A CRASH OF SUFFICIENT SEVERITY OCCURS, THE
full bulletin at NHTSA ↗"WARRANTY BULLETIN: WTY002 - 2006~2008MY OPTIMA PASSENGER SEAT OCS SENSOR MAT WARRANTY EXTENSION (WTY002) - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE REPLACEMENT OF THE FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR MAT IN 2006 ~ 2008 MY OPTIMA (MG) VEHICLES. IF THE SENSOR MAT IS NOT WORKING PROPERLY, THE AIRBAG WARNING LIGHT ON THE CLUSTER WILL ILLUMINATE AND DTC(S) B1447, B1448, B1449 AND/OR B1450 MAY BE STORED. IF THE AIRBAG WARNING LIGHT IS ILLUMINATED AND ONE OR MORE THE ABOVE DTCS ARE STORED, FOLLOW THE REPAIR PROCEDURE OUTLINED IN THIS BULLETIN TO REPLACE THE OCS MAT. KIA IS EXTENDING THE WARRANTY FOR THE OCS SENSOR MAT FOR THE AFFECTED VEHICLES TO 15 YEARS / UNLI
full bulletin at NHTSA ↗TSB: FRONT PASSENGER OCS SENSOR MAT DIAGNOSIS AND REPLACEMENT - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE REPLACEMENT OF THE FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR MAT IN 2006 ~ 2008 MY OPTIMA (MG) VEHICLES. IF THE SENSOR MAT IS NOT WORKING PROPERLY, THE AIRBAG WARNING LIGHT ON THE CLUSTER WILL ILLUMINATE AND DTC(S) B1447, B1448, B1449 AND/OR B1450 MAY BE STORED. IF THE AIRBAG WARNING LIGHT IS ILLUMINATED AND ONE OR MORE OF THE ABOVE DTCS ARE STORED, FOLLOW THE REPAIR PROCEDURE OUTLINED IN THIS BULLETIN TO REPLACE THE OCS MAT.
full bulletin at NHTSA ↗DEALER PRINCIPAL MEMO: WTY002 - 2008~2011MY RIO PASSENGER SEAT OCS SENSOR MAT WARRANTY EXTENSION (WTY002) - KIA MOTORS AMERICA, INC. IS EXTENDING THE WARRANTY COVERAGE FOR THE FRONT PASSENGER OCCUPANT CLASSIFICATION SYSTEM (OCS) SENSOR MAT FOR CERTAIN 2008-2011 MY RIO VEHICLES PRODUCED AFTER DECEMBER 8, 2007 AND ALL 2006-2010 MY OPTIMA VEHICLES TO 15 YEARS/UNLIMITED MILEAGE, STARTING FROM THE DATE OF FIRST SERVICE. THE WARRANTY EXTENSION WILL ADDRESS FAILURES OF THE OCS SENSOR MAT AS REPORTED BY SOME VEHICLE OWNERS.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The passenger-side occupancy sensor (OCS) is the dominant complaint. Owners describe the airbag-off warning light staying on 20–80% of the time even with a properly seated adult. The sensor checks only at engine startup and doesn't re-check during the drive, so picking up a passenger mid-journey leaves the airbag disabled. Kia's response has been to blame improper seating, but owners report following dealer instructions and the problem persisting. Multiple visits for the same issue are common; dealers sometimes reset software or replace the seat cushion/mat, but the fault returns within days or miles.
When the OCS computer module itself fails, the airbag light comes on permanently and stays lit. Dealer diagnostics point to a faulty OCS mat or computer, with repair quotes of $1,400–$2,200. Many owners decline because the car is worth $2,000–$3,000. After recall work on the steering column (clock spring), the airbag light often illuminates afterward; dealers then claim the OCS mat is a separate, non-covered repair.
Three owners report airbags did not deploy during crashes—frontal and side impacts, even a rollover. Vehicles were totaled; occupants sustained injuries. Weight thresholds for the sensor vary by dealer statement (110–130 lbs) and exclude children and small adults. Kia has issued no Optima-specific OCS recall despite issuing one for the Rio, the same model year, for the same part.
Same Kia Optima airbags reports on nearby years: 2005 · 2006 · 2008 · 2009 · 2010
Failure modes owners describe
Passenger-side airbag indicator light stays on despite occupied seat
Occupancy Control System (OCS) sensor mat in passenger seat fails to recognize seated passenger, leaving the airbag-off warning light illuminated. Occurs intermittently (20–80% of the time). Dealers blame improper seating position; owners report the problem persists even with properly seated adults. Sensor does not re-check during drive—only at startup—so adding a passenger mid-drive doesn't activate the airbag.
When: Starts early in ownership; reported within weeks to months of purchase. Recurs throughout ownership life.
Symptoms owners cite: Passenger-side airbag-off light remains lit even with adult in seat; Light goes out if car is shut off and restarted; Occurs approximately 20–80% of the time depending on vehicle; Sensor appears to require passenger to be bolt-upright and centered; Light may illuminate randomly even during drive
Codes mentioned: OCS mat failure, Occupancy sensor malfunction
Repairs/costs cited: Seat cushion/bladder replacement ($1,400–$1,875). Seat module reprogramming attempted. OCS sensor mat replacement ($1,600–$1,800). Multiple dealer visits often required without resolution. Dealers sometimes claim manufacturing design—no fix available.
Recalls/TSBs owners mention: Kia issued service bulletins advising proper seating position. Field technicians have inspected vehicles and declared them operating to design intent. Some owners report Kia refused repair under warranty extension (Part 32) because diagnostic code did not match recall criteria. Voluntary warranty extension offered on OCS mat for certain code ranges, but denied for others. Recall issued for Kia Rio (same year range) for identical OCS mat, but not applied to Optima.
Airbag warning light illuminates; OCS computer module failure
Airbag warning light comes on permanently and stays illuminated. Diagnostic reveals internal failure of OCS computer module (not just the seat mat sensor). Repair cost very high relative to vehicle value. Owners report the problem can persist or recur even after dealer attempts repair.
When: Reported at mileage ranging from 40,533 to 104,000 miles; some cases within first few months of purchase.
Symptoms owners cite: Red airbag warning light illuminates and remains on; Light does not turn off after engine restart; Light may stay on until car is shut off and restarted; Affects both driver and passenger side indicators in some cases
Codes mentioned: OCS computer failure, Airbag module fault
Repairs/costs cited: Complete OCS computer module replacement quoted at $1,200–$2,200. Some owners declined due to vehicle value ($2,000–$3,000). Wiring harness and airbag module replacement attempted in one case, but light returned.
Recalls/TSBs owners mention: Kia denied assistance in multiple cases. One owner was told to contact dealer for potential discount on new vehicle purchase—not feasible. Recall issued for clock spring in steering column (Campaign 12V014000), but problem persisted in at least one case after repair.
Clock spring failure with subsequent airbag system problems
After clock spring replacement under recall, the airbag light illuminated. Dealers attributed the new problem to OCS sensor mat failure, expecting owners to pay for additional repairs even though the original recall service may have introduced the secondary fault.
When: Post-repair; appears within months of clock spring recall work.
Symptoms owners cite: Airbag light comes on after clock spring recall repair; Radio/cruise control on steering wheel intermittently malfunction; Steering column makes noise (bearing issue noted by dealers as unfixable)
Codes mentioned: Clock spring replacement (Campaign 12V014000), OCS sensor mat secondary failure
Repairs/costs cited: Clock spring replaced under recall. Subsequently, OCS sensor mat replacement quoted at $1,600–$1,800, with dealers claiming no coverage post-warranty.
Recalls/TSBs owners mention: Clock spring recall honored. However, airbag light issues post-repair treated as separate, non-covered repairs. Kia suggested consulting dealership helpdesk via case number, but dealers reportedly did not follow up or make warranty claims.
Airbag non-deployment during crashes
In three separate crash incidents, airbags did not deploy despite impact severity that should have triggered deployment. In one case, the deflated airbag itself obstructed the driver's view and may have exacerbated the accident. In another, the vehicle flipped end-over-end; all six airbags failed to deploy despite extensive damage.
When: Occurs during actual crashes at varying mileage.
Symptoms owners cite: No airbag deployment during frontal and side-impact collisions; Vehicle requires towing; declared total loss or destroyed; Deflated airbag partially blocking driver view; Occupants sustained injuries
Repairs/costs cited: Vehicles not diagnosed or repaired post-incident. One vehicle totaled; another considered destroyed by insurer.
Recalls/TSBs owners mention: Manufacturer not notified in two cases. In the case where the vehicle slid and struck guardrail (33,000 miles), the reason for non-deployment was not investigated.
Airbag connector and wiring failures
Loose pin fitting in airbag connector fails, causing airbag warning light to illuminate. Problem recurs after repair attempt.
When: Reported at 102,000 miles.
Symptoms owners cite: Airbag warning light illuminates
Codes mentioned: Loose pin fitting airbag connector
Repairs/costs cited: Connector replaced; failure recurred.
Weight-based sensor discrimination
Passenger occupancy sensor requires minimum weight threshold (stated as 110–120+ lbs) to activate airbag. Normal-weight adults and children lighter than threshold cannot reliably trigger the system. Dealers cite weight limits that vary between visits and differ from NHTSA test dummy specs.
When: Ongoing throughout ownership.
Symptoms owners cite: Airbag-off light stays on for passengers weighing less than claimed threshold; Dealers cite conflicting weight limits (110 lbs, 120 lbs, 130 lbs); Small-framed passengers and children at higher risk
Repairs/costs cited: No repair available for design limitation. Owners advised to ensure passenger weighs above stated minimum and sits in center of seat.
Recalls/TSBs owners mention: Kia acknowledged this is 'how the system is designed.' Advised passengers to sit bolt-upright and weigh over 130 lbs. No design modification offered.
Synthesized from 57 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 8 most recent
At 63,000 miles, the red airbag light came on and stayed illuminated. Took it to the dealer, and they said the adult/child sensor needed to be replaced or neither front airbag would work. Estimate was $1,600 prepaid. Prior to this, no problem with airbag sensors in this vehicle. *kb
The passenger air bag warning light stays illuminated when my wife sits in the passenger seat. Since she only weighs about 100 pounds I called Kia their representative told me that it took 120m pounds to turn the light off. This does not sound correct to me. The vehicle is a 2007 Kia optima. Any help that you can give me will be greatly appreciated *tr
"takata recall" I was driving on highway and my air bag light just came on. *tr
Tl* the contact owns a 2007 Kia optima. The contact stated that the air bag warning indicator illuminated. The dealer diagnosed that the loose pin fitting air bag connector failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was not notified of the failure. The failure mileage was 102,000.
Front passenger airbag light remains illuminated approximately 60% of the time when seat is occupied by a passenger. This has been a problem since I purchased the car in april 2007. From all I have read on the internet, this is the most prevailing problem Kia owners have. Kia acknowledges this is true, but says this is simply how the system is designed. Their only solution is that passengers…
Tl* the contact owns a 2007 Kia optima. The contact stated that the passenger seat air bag indicator illuminated. The dealer reset the passenger seat air bag indicator on approximately three occasions, but the failure would recur less than thirty miles later. After a recent oil change, a different air bag indicator illuminated. The vehicle was not repaired. The manufacturer was notified of the…
We purchased our 2007 Kia optima this year in april and ever since we've had the car we've had issues with air bag sensor on the passenger side front seat. I ride in the passenger seat and about 30% of the time the air bag is off light doesn't turn off when I'm sitting in the seat, once I lift my rear end off the seat and put it back down then that light goes off. I've taken this in to the…
In 2007 I purchased a new Kia optima 4cyl automatic from a local dealer. Soon after, I discovered that the passenger airbag light would sometimes remain illuminated when there was a passenger in the seat, meaning that the airbag was off. Kia authorized dealer said that unless passenger is sitting in upright position exactly in the middle of the seat, the sensor will not work properly. We also…
Had airbags trouble with your 2007 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 airbags problem on the 2007 Kia Optima?
It's a meaningful issue. 57 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,100.
At what mileage does the airbags typically fail?
Across the 35 complaints that reported odometer mileage, most airbags failures cluster between 49,000 and 110,000 miles, with the median around 80,100. A quarter of owners report trouble before 49,000; a quarter make it past 110,000. 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 $1,100 for airbags 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 airbags?
No active recalls currently cover airbags 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/2007/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.