ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code B0058

Quick reference

B0058 at a glance

Plain-language meaning
This code means there's a problem with the sensor that checks if the seat belt is fastened in the third row on the right side of the car.
Urgency
Moderate – It is important to ensure all seat belts are functioning properly for safety.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with the sensor that checks if the seat belt is fastened in the third row on the right side of the car.

Explanation

The B0058 code is triggered when the vehicle's control module detects a malfunction in the seat belt sensor located in the third row, right side.

Technical description

The third row right seat belt sensor is responsible for detecting whether the seat belt is fastened. This sensor sends signals to the vehicle's control module to ensure that all passengers are safely buckled up. If the sensor fails or sends incorrect signals, it can trigger the B0058 code.

Symptoms

• Seat belt warning light on the dashboard

• Audible warning chime

• Seat belt not detected as fastened

Common Causes

• Faulty seat belt sensor

• Damaged wiring or connectors

• Malfunctioning control module

Glossary

OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosis and reporting.

Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.

Diagnosis steps

• Inspect the seat belt sensor for damage

• Check wiring and connectors for continuity

• Test the control module for errors

Repair procedures

• Replace the faulty seat belt sensor

• Repair or replace damaged wiring

• Reprogram or replace the control module

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Suburban

• GMC Yukon XL

• Cadillac Escalade ESV

Preventive measures

• Regularly inspect seat belts and sensors

• Ensure connectors are secure

• Avoid spilling liquids on seat belt components

Error code type

Sensor Issue

User experience recommendations

• Ensure all passengers are buckled up properly

• Have the vehicle inspected by a professional if the warning light appears

Warranty information

Check your vehicle's warranty for coverage on seat belt components.

Historical data

This code is commonly reported in larger SUVs with third-row seating due to the complexity of additional sensors.

Urgency level

Moderate – It is important to ensure all seat belts are functioning properly for safety.

Testing conditions

• Vehicle parked and engine off

• Access to the third row of seats

Component location

The sensor is located in the seat belt buckle of the third row, right side seat.

FAQs

Q: Can I drive with a B0058 code?
A: It's not recommended to drive with this code as it may indicate a seat belt malfunction, reducing passenger safety.

Q: How do I reset the B0058 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.

Optional diagnostic gear

Tools that may help diagnose B0058

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Body and airbag faults often need a scanner that can access more than generic powertrain codes.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking power, ground, and continuity in body-system circuits.

View on Amazon
Bussmann Fuse Assortment diagnostic tool illustration

Universal · Fuse kit

Bussmann Fuse Assortment

Useful for electrical diagnosis when blown fuses or circuit faults are part of the troubleshooting process.

Useful when body electrical faults trace back to blown fuses or shared circuits.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
🌙