Dorman 599-027 HVAC Control Module
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$187.74
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
Climate controls stopped working? Seamlessly restore operation by easily swapping the malfunctioning original module with this fully tested replacement unit.
- Direct replacement - this HVAC control module matches the appearance and function of the original unit on specific vehicles
- Function tested - module has been tested to ensure the same operation as the stock module
- Simple installation - advanced vehicle knowledge is not required for proper installation
- Trustworthy quality - backed by team of engineers and inspectors in the United States
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2009 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2008 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2008 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2007 | Buick | Rainier | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2007 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2007 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2006 | Buick | Rainier | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2006 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2006 | Chevrolet | Trailblazer EXT | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2006 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2006 | GMC | Envoy XL | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | Buick | Rainier | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | Chevrolet | Trailblazer EXT | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | GMC | Envoy XL | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2005 | GMC | Envoy XUV | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | Buick | Rainier | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | Chevrolet | Trailblazer EXT | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | GMC | Envoy XL | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | GMC | Envoy XUV | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2004 | Oldsmobile | Bravada | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2003 | Chevrolet | Trailblazer | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2003 | Chevrolet | Trailblazer EXT | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2003 | GMC | Envoy | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2003 | GMC | Envoy XL | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger | |
| 2003 | Oldsmobile | Bravada | Front; Rear | w/Manual Air Conditioning Controls; Remanufactured; wo/Rear Window Defogger |
Product Specifications
| Automatic Temperature Control: | No |
|---|---|
| Connector Gender: | Female |
| Housing Color: | Black |
| Instruction Manual Included: | No |
| Mounting Hardware Included: | No |
| Mounting Type: | Bolt On |
| Package Contents: | 1 HVAC Control Module |
| Pin Count: | 26 |
| Programming Required: | Yes |
| Terminal Gender: | Male |
| Terminal Quantity: | 16 |
| Terminal Type: | Pin |
| Remanufactured: | Yes |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 10395427 | GENERAL MOTORS |
| 15220317 | GENERAL MOTORS |
| 25945047 | GENERAL MOTORS |