What does B0268 mean on a Chevy?

B0268. Air inlet door inoperative fault. The HVAC module cannot move the air inlet door and the body warning light comes on. Applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

What causes B0268 on a Chevy?

Binding air inlet door with stripped actuator gears Air inlet door actuator with a failed motor Open or short in the air inlet door actuator circuit Corroded or loose air inlet door actuator connector Faulty output inside the HVAC control module

How do I fix B0268 on a Chevy?

Confirm the code with a scan tool and command the air inlet door through full travel Listen for the air inlet door actuator and check for door movement Inspect and reseat the air inlet door actuator connector Move the air inlet door by hand with the actuator removed to check for binding Replace the air inlet door actuator only after the circuit tests pass, then clear the code and retest

Code

B0268

Air inlet door inoperative fault

Category: Body
Severity: Body Warning 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

B0268. Air inlet door inoperative fault. The HVAC module cannot move the air inlet door and the body warning light comes on. This Chevy-enhanced code applies to Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile and Saturn models that use this code.

Findings, check these first

Binding air inlet door with stripped actuator gears
Air inlet door actuator with a failed motor
Open or short in the air inlet door actuator circuit
Corroded or loose air inlet door actuator connector
Faulty output inside the HVAC control module

Standard procedure

Confirm the code with a scan tool and command the air inlet door through full travel
Listen for the air inlet door actuator and check for door movement
Inspect and reseat the air inlet door actuator connector
Move the air inlet door by hand with the actuator removed to check for binding
Replace the air inlet door actuator only after the circuit tests pass, then 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 B0268 definition | OBDII.pro
live manufacturer definition (obdii.pro)
Supports: GM manufacturer meaning for B0268
Fetched directly. The GM entry is the brand-family meaning used here. This site is independent of engine-codes and autocodes.
B0268 CHEVROLET Air Flow Control 7 Circuit | Engine-Codes.com
archived reference page (engine-codes.com via Wayback Machine)
Supports: Chevrolet meaning and possible causes for B0268
Fetched directly. Model and year fitment remain curator claims.
B0268 CHEVROLET Air Flow Control 7 Circuit | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Chevrolet meaning and causes for B0268
Same Chevrolet text as the engine-codes page (both sites share one publisher).

Review note: obdii.pro GM names the air inlet door inoperative error; the archived Chevrolet page names air flow control 7 circuit. The circuits differ, so the record uses the GM wording and flags the conflict

Last updated 2026-10-10.

Report a correction for B0268. Include your vehicle, the issue and a source if you have one.