B0229 on GMC
Manufacturer-Specific Body Code (GM: Air Recirculation Door Position Feedback Circuit Actuator Range/Performance)
B0229 on GMC vehicles indicates manufacturer-specific body code (gm: air recirculation door position feedback circuit actuator range/performance). Au7o has documented this code across 2 GMC models — most commonly on Sierra 1500, Yukon XL. B0229 is a body code most common on GM vehicles, indicating a range/performance fault with the HVAC air-recirculation door actuator's position-feedback circuit. The climate-control module commands the recirculation door (fresh air vs. recirculated cabin air) and reads its feedback position; this code sets when the actual position doesn't match the command or is out of range. Symptoms are usually limited to the system being stuck in fresh or recirculate mode, with possible clicking behind the dash. It is a comfort-system issue, not a safety concern, and the exact definition should be confirmed against the specific vehicle. Typical repair costs on GMC range from $150 to $900, depending on the specific model and root cause.
Common Causes of B0229
- •Faulty air recirculation door actuator
- •Binding, stuck, or broken recirculation door
- •Wiring or connector fault in the feedback circuit
- •Worn actuator position-feedback contacts or gears
- •Poor ground or low voltage to the actuator
- •Obstruction in the air-intake door path
- •Faulty HVAC control module
B0229 on GMC by Model
GMC Sierra 1500(1 issue)
- Blend Door / HVAC Actuator Failure Causing Clicking Behind Dash and Incorrect Air Temperature or Mode2000-2013
Sierra owners across both GMT800 and GMT900 generations frequently report small electric HVAC actuators stripping internal gears or losing calibration. The result is a repetitive clicking or tapping noise from the dash, air stuck on defrost or floor, or one side blowing hot while the other blows cold. This is one of the most common non-drivetrain complaints on these trucks and is heavily documented in owner forums and repair databases.
GMC Yukon XL(1 issue)
- Blend Door / HVAC Mode Actuator Failure Causing Incorrect Airflow or Temperature Control2000-2006
Owners frequently report clicking behind the dash, air stuck on defrost or floor, or one side blowing the wrong temperature due to failed HVAC actuators. On Yukon XL models with front and rear climate systems, the mode and blend door actuators can strip gears or lose calibration over time. This is distinct from compressor failure and is a common repair on aging GMT800 SUVs.
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View B0229 across all makes →Frequently Asked Questions
What does B0229 mean on GMC?▼
B0229 stands for "Manufacturer-Specific Body Code (GM: Air Recirculation Door Position Feedback Circuit Actuator Range/Performance)." B0229 is a body code most common on GM vehicles, indicating a range/performance fault with the HVAC air-recirculation door actuator's position-feedback circuit. The climate-control module commands the recirculation door (fresh air vs. recirculated cabin air) and reads its feedback position; this code sets when the actual position doesn't match the command or is out of range. Symptoms are usually limited to the system being stuck in fresh or recirculate mode, with possible clicking behind the dash. It is a comfort-system issue, not a safety concern, and the exact definition should be confirmed against the specific vehicle. On GMC specifically, this code is documented across 2 models.
What causes B0229 on GMC vehicles?▼
Common causes on GMC: Faulty air recirculation door actuator, Binding, stuck, or broken recirculation door, Wiring or connector fault in the feedback circuit, Worn actuator position-feedback contacts or gears, Poor ground or low voltage to the actuator. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B0229 on a GMC?▼
Repair costs on GMC range from $150 to $900, depending on the specific model and root cause.
Which GMC models have B0229 documented?▼
Au7o has documented B0229 on 2 GMC models: Sierra 1500, Yukon XL.