GM GENUINE PARTS Mode Door Actuator 15-74349 (22838102) — Direct OE Fit, Preconfigured Connector

The GM Genuine Parts 15-74349 (22838102) heating and air conditioning panel mode door actuator is the factory-style replacement that restores HVAC panel mode control in compatible GM vehicles.

If your vehicle's HVAC vents no longer respond when you change settings — for example, air stays on defrost or vents despite switching modes — a failed mode door actuator is often the cause. This GM Genuine Parts actuator is built to meet the original equipment specifications, offering the fit and durability expected from a GM-recommended replacement. It replaces the factory component to correct mode-door movement without having to alter or reprogram the HVAC system.

How does this actuator restore my HVAC mode control?

Replacing a worn or failed actuator returns proper movement to the internal mode door assemblies so vents respond correctly to controls. The actuator drives the linkage that directs airflow between floor, dash, and defrost outlets, allowing the system to deliver air where you select.

• Direct replacement for the factory mode door actuator on compatible GM models
• Re-establishes actuator-driven door motion for accurate vent selection
• Ships preconfigured to the same connector and mounting points as the original

Will this GM part fit my vehicle and match original performance?

GM Genuine Parts 15-74349 (22838102) is manufactured to GM original equipment specifications for fit, form, and function. It is intended as the recommended GM replacement for the vehicle applications that list this part number, ensuring the same electrical connector, mounting pattern, and operating characteristics.

• Made to GM OE tolerances for a direct, no-modification fit
• Meets the same electrical and mechanical specifications as the factory unit
• Recommended by GM when the original actuator shows failure symptoms

What problems indicate the mode door actuator needs replacement?

Common signs include audible clicking or grinding from the dash, inability to change vent modes, or the HVAC system being stuck on a single airflow setting. These symptoms usually point to internal gear or motor failure within the actuator rather than a problem with the control panel itself.

• Clicking noises coming from behind the dash during mode changes
• HVAC vents that don’t switch between floor, dash, and defrost positions
• Unresponsive or inconsistent mode selection despite correct control inputs

How simple is installation and what should I expect during replacement?

Installation is generally straightforward for anyone comfortable with basic dash disassembly and electrical connectors; it uses the same mounting points and plug style as the OEM part. Some models require removal of trim panels or the glove box for access, but no special programming is typically necessary after replacement.

• Fits into existing mounting locations and uses the factory electrical connector
• May require minor dash or glove box removal for access depending on vehicle model
• No specialized diagnostic reprogramming normally required after swap

Who is this for: Drivers and technicians restoring proper HVAC function in GM vehicles who want a factory-quality replacement part. Choose GM Genuine Parts 15-74349 (22838102) when you prefer a component produced to original GM specifications for dependable operation, correct fitment, and long-term durability rather than aftermarket alternatives.