B0081: First Row Center Seat Belt Load Limiter Deployment Control
A generic body trouble code, same meaning on every brand.
Yes - the car is unaffected mechanically. But the center front belt's load limiter is part of the restraint math; repair promptly and keep that seat empty meanwhile if you can.
Symptoms
- Airbag warning light
- Code for the first row center belt load limiter
- Typical on trucks and vans with a front bench
- No drivability change
Likely causes, most common first
- Belt assembly load limiter circuit fault
- Connector under the bench seat corroded or unplugged
- Harness damage from seat movement or cargo
- Failed belt assembly
Read B0081 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
B0081 lives mostly in trucks and vans with three-across front seating: it monitors the deployment loop of the center belt's load limiter, the device that pays out a controlled amount of webbing in a crash so the belt restrains without cracking ribs. Modern restraint systems fire belts and airbags as one choreographed sequence, which is why a belt device gets airbag-style monitoring.
Diagnosis follows the family pattern - loop resistance at the belt connector, then the harness, then the assembly - with the usual under-seat suspects, since front benches hide connectors exactly where boots and toolboxes go. Belt assemblies with pyrotechnics are replaced, not repaired, and used units from salvage are a false economy: there is no way to verify an undeployed charge's history.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning B0081
“The air bag light is on, when a diagnostic is done a code of B0081-OF shows up, which is passenger presence module erratic.”2007 GMC Acadia · Dec 2024
“Car went crazy one day while behind the wheel everything malfunctioned then car shut off and won't start again. I could of easily got into an accident had there been any other vehicles around. Kids were scared. Codes come up as U0100,U0140,U0101,C0242,B0081-0F,B0081-71,B1370-01,B1370-06,U0155-00,U0170-00,P0856-00.”2008 Cadillac CTS · Jul 2023
“Hi something happened to my 2013 chevy volt when I got the message of service airbag and the light of airbag on the dashboard, I took it to o'reilly to check the code on it and they said it has two codes of bees 0074 and b0081 which related to passenger presence module. This came on by itself!! *tr”2013 Chevrolet Volt · May 2020 · 117,872 mi
Show 7 more owner reports
“The truck is well maintained with 66500 miles and the passenger presence module is malfunctioning and to fix it the dealership says it's going to be 967.70 is there a recall or warranty on this it already cost me 106.73 to put it on a computer for the code that I could have done at home I've owned it since new it will be 5 yrs in a week or so just feel for 49000.00 truck shouldn't have airbag issues already. The code is b0081-00 and b1000 air bag service light comes on while driving with out anyone in the passenger seat but if someone is in the seat no matter how much they weigh it doesn't throw a code”2015 Chevrolet Silverado 1500 · Jan 2020
“This issue appears to be related to an open investigation (pe19013). Airbag warning displayed after passenger has exited the vehicle ('service airbag'). Appears to be caused by faulty passenger presence sensor. Fault cleared when vehicle is turned off/on. Dealer (paradise chevrolet, ventura, ca) advised that passenger presence and airbag systems have an 'internal fault' (b0074, b0081) which dealer service rep stated may cause the passenger airbag not to deploy correctly in the event of an accident. Quoted repair cost of $499 for sensor and 3 hours labor (@$150/hr).”2012 Chevrolet Volt · Nov 2019 · 109,903 mi
“Keep getting air bag light on code u0170 and b0081 seems like this is a big safety problem with the pontiac g8 needs a recall on this problem and replaced the rear ABS sensors and still have the issue with it not working and replaced them 2 times with new sensors”2008 Pontiac G8 · Oct 2019 · 104,000 mi
“Takata recall the air bag light comes on and off. When the light is on I call on star and they say its a defect in deploy diagnostic code b0081 and when I take it in the light is off. I dont want to get in an accident and then the air bag not deploy”2014 Chevrolet Sonic · Feb 2019 · 69,084 mi
“Obd warning b0074, b0081 - pps module faulty - cannot detect passenger weight in car, therefore disabled the passenger airbag. After some research, I am seeing multiple gm issues on the same error, obd b0081, faulty pps sensor on comaros and volts”2011 Buick Regal · Nov 2018 · 98,000 mi
“Passenger seat does not register a person sitting in it to activate air bag system. Codes retrieved: u0170 and b0081. Odometer: 86,000”2008 Pontiac G8 · Nov 2018 · 86,000 mi
“Every time I turn on my car, it states service airbag with an exclamation point, codes c0196, c0186, c0287, b101d, b0081”2015 Chevrolet Malibu · Jun 2017 · 26,000 mi
Cars that report B0081 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with B0081?
Yes - the car is unaffected mechanically. But the center front belt's load limiter is part of the restraint math; repair promptly and keep that seat empty meanwhile if you can.
How much does it cost to fix B0081?
Typical US repair costs range from $60 for the simplest fix (connector reseat or repair) to $700 in the worst case. The right number depends on which cause your car has - see the causes list.
Related codes
The codes closest to B0081. They often appear together, and telling them apart is usually what narrows the diagnosis.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.