What does B0062 mean on a Chevy?

B0062. Left front driver roof rail head curtain deployment loop is open. The module cannot fire that airbag and switches on the airbag warning. Applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

What causes B0062 on a Chevy?

Open in the left front driver roof rail head curtain deployment loop Left front driver roof rail head curtain harness broken where it runs up the A-pillar Unseated or corroded left front driver roof rail head curtain connector Left front driver roof rail head curtain inflator with an open squib Faulty driver inside the sensing and diagnostic module for that loop

How do I fix B0062 on a Chevy?

Confirm the code with a Tech2 or GDS2 and read the left front driver roof rail head curtain loop resistance Disconnect the battery and wait at least three minutes before touching any SRS circuit Wiggle-test the left front driver roof rail head curtain harness along the A-pillar Reseat the left front driver roof rail head curtain connector and check terminal tension Replace the left front driver roof rail head curtain airbag only if the wiring tests good, using a qualified SRS technician Clear the code and retest

Code

B0062

Left front driver roof rail head curtain deployment loop is open

Category: Body
Severity: Airbag Light
Applies to: Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code
Related: No single generic twin. See OBD Codes List

What it means

B0062. Left front driver roof rail head curtain deployment loop is open. The module cannot fire that airbag and switches on the airbag warning. This Chevy-enhanced code applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

Findings, check these first

Open in the left front driver roof rail head curtain deployment loop
Left front driver roof rail head curtain harness broken where it runs up the A-pillar
Unseated or corroded left front driver roof rail head curtain connector
Left front driver roof rail head curtain inflator with an open squib
Faulty driver inside the sensing and diagnostic module for that loop

Standard procedure

Confirm the code with a Tech2 or GDS2 and read the left front driver roof rail head curtain loop resistance
Disconnect the battery and wait at least three minutes before touching any SRS circuit
Wiggle-test the left front driver roof rail head curtain harness along the A-pillar
Reseat the left front driver roof rail head curtain connector and check terminal tension
Replace the left front driver roof rail head curtain airbag only if the wiring tests good, using a qualified SRS technician
Clear the code and retest

Look up another code

Press / to jump to the box. Chevy-enhanced powertrain, body, chassis and network codes.

Sources and review

Review: qualified. Read the source limits below.

Code B0062 definition | OBDII.pro
live manufacturer definition (obdii.pro)
Supports: GM manufacturer meaning for B0062
Fetched directly. The GM entry is the brand-family meaning used here. This site is independent of engine-codes and autocodes.
B0062 CHEVROLET Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open | Engine-Codes.com
archived reference page (engine-codes.com via Wayback Machine)
Supports: Chevrolet meaning and possible causes
Fetched directly. Model and year fitment remain curator claims.
B0062 CHEVROLET Left Front/Driver Roof Rail/Head Curtain Bag Deployment Loop Open | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Chevrolet meaning and causes
Same Chevrolet text as the engine-codes page (both sites share one publisher).

Review note: obdii.pro GM calls it supplemental deployment loop 3 open; the archive names the left front driver roof rail head curtain bag. Same loop family, different naming

Last updated 2026-10-10.

Report a correction for B0062. Include your vehicle, the issue and a source if you have one.