Which cars report code B0058?

Code B0058 is named in 3 US owner complaints. Models: 3, model years 2004–2014. Cadillac CTS, Chevrolet Trailblazer, GMC Acadia.

B0058 code: Third Row Right Seat Belt Sensor

Q: What does code B0058 mean?

Third Row Right Seat Belt Sensor. How to read B0058: the letter B means body (including airbags and belts); the second digit 0 marks a generic SAE code shared by all makes; the last three characters 058 identify the specific fault.

Code B0058 is named in 3 US owner complaints. Models: 3, model years 2004–2014.

What the code means

Third Row Right Seat Belt Sensor. Generic meaning per SAE J2012 (the same for all makes).

How to read B0058: the letter B means body (including airbags and belts); the second digit 0 marks a generic SAE code shared by all makes; the last three characters 058 identify the specific fault.

Restraint system codes: airbag squibs, belt pretensioners, crash sensors and occupant classification. After a crash with airbag deployment, many makers require the restraint module to be replaced or reset by procedure because it stores crash data. An airbag light on an auction car is not cosmetic: airbags, the module and sensors can cost more than the body repair.

Key figures

Complaints with this code: 3
Models: 3
Model years: 2004–2014

Which models and years

Models whose owners name this code (3). Years link to the model year problems page.

Model	Years	Complaints
Cadillac CTS	2004	1
Chevrolet Trailblazer	2008	1
GMC Acadia	2014	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Air bags 3
Seat belts 1

Complaints by model year

2004 1
2008 1
2014 1

What to do if an auction car has this code

Ask for a dash photo at start-up: the airbag light must go off after the self-test.
Check the interior photos for deployed airbags and fired belt pretensioners: replacing the restraint module, airbags and sensors is a large separate part of the estimate.
Budget a scan with a restraint module read-out: the code alone does not say which part failed.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

The dealership advised this failure code of B0022 was covered under warranty pursuant to gm special coverage adjustment number 15804. The dealership said that the second diagnosis code was B0058 (which the dealership said was a failed sensor).
GMC Acadia 2014 · 2019-08
Was advised code B0058- right front pretensioner defective on passenger seat belt buckle. The dealership advised that this part is no longer available from gm and therefore they wouldn't be able to make repairs. Also advised that the air bags are disabled and will not deploy. Was told to contact gm customer service.
Cadillac CTS 2004 · 2015-09

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.