Woudy AC Heater Climate Temperature Control Module for Chevy GMC Hummer 599-211XD

[Fixes]: Restores HVAC function — fixes blower motor failures, erratic temperature control, unresponsive AC/heater settings and display backlight problems to return climate control to normal operation. [Fitment]: Direct-fit for many GM full-size SUVs/trucks and related models (2002–2007) — Chevrolet Tahoe/Suburban/Silverado/Avalanche/TrailBlazer, GMC Yukon/Sierra/Envoy, Cadillac Escalade/EXT, Hummer H2 and Buick Rainier. Always verify fit with your VIN and original part before ordering. [Replacement]: Replaces OEM/control module numbers including 10367041, 15105215, 15832311, 21997426 (and other referenced equivalents). Matches factory connector layout (2-port design) and mounting points — confirm connector type on your vehicle. [Package & Installation]: Package includes 1 × HVAC control module (black housing). Professional installation recommended — no instructions or mounting hardware included. Before install: disconnect battery, verify connector pin count and 2-port design, transfer any knobs/buttons from old unit if needed, and test all functions before reassembling dash.