Dorman 599-266 HVAC Control Module - Front

Brand Dorman 599-266
Position Front
Automatic Temperature Control No
Connector Gender Female
Connector Quantity 2
Housing Color Black
Instruction Manual Included No
Mounting Hardware Included No
Mounting Type Bolt On
Package Contents 1 HVAC Control Module
Programming Required No
Terminal Gender Male
Terminal Quantity 7
Terminal Quantity 12
Terminal Type Pin
Fits Cadillac, Chevrolet, and GMC · 52 vehicles

Direct replacement. Seamlessly restores HVAC control operation with a fully tested module.

Bolt-on installation. No programming required for a straightforward swap.

Black housing with pin terminals and two female connectors.

Cross-references 1S10913, 15-72528 and 53-12325 for the same application. See all 6.

$369.31Free shipping
In stock · usually ships same day before 1pm CST
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Dorman 599-266 HVAC Control Module

Restore cabin climate control operation with this Dorman HVAC control module. It is a fully tested replacement for the original unit and is built for vehicles with manual air conditioning controls.

Key Features

  • Direct replacement HVAC control module for manual A/C systems
  • Fully tested replacement unit for dependable operation
  • No programming required
  • Black housing with 2 female connectors
  • Pin-style terminals with bolt-on mounting
  • Compatible with front HVAC control applications

Detailed Description

Dorman 599-266 is an HVAC control module for front-mounted manual air conditioning systems. It uses 2 connectors, pin terminals, and a bolt-on mounting design to replace the malfunctioning original module without programming. This part is a practical solution for Chevrolet Silverado, GMC Sierra, Cadillac Escalade, and related GM trucks and SUVs that use manual climate controls and do not have a rear window defogger. The Dorman 599-266 is also cross-referenced to 1S10913 for the same application.

Compatible With 1999-2002 Chevrolet Silverado 1500, front; 2001-2002 Chevrolet Silverado 1500 HD, front; 1999-2002 Chevrolet Silverado 2500, front; 2001-2002 Chevrolet Silverado 2500 HD, front; 2001-2002 Chevrolet Silverado 3500, front; 2000-2002 Chevrolet Suburban 1500, front; 2000-2002 Chevrolet Suburban 2500, front; 2000-2002 Chevrolet Tahoe, front; 1999-2002 GMC Sierra 1500, front; 2001-2002 GMC Sierra 1500 HD, front; 1999-2002 GMC Sierra 2500, front; 2001-2002 GMC Sierra 2500 HD, front; 2001-2002 GMC Sierra 3500, front; 2000-2002 GMC Yukon, front; 2000-2002 GMC Yukon XL 1500, front; 2000-2002 GMC Yukon XL 2500, front; 2002 Cadillac Escalade, front; 2002 Cadillac Escalade EXT, front; 2002 Chevrolet Avalanche 1500, front; and 2002 Chevrolet Avalanche 2500, front.

Common Issues This Part Can Solve

  • Climate controls that stop responding
  • Loss of manual temperature or airflow control
  • Intermittent HVAC operation from a failed control module
  • Broken or unreliable factory climate control electronics
  • Need to replace a damaged front HVAC control unit

Installation Notes and Tips

Verify the vehicle uses manual air conditioning controls and does not have a rear window defogger before ordering. This module does not require programming. Confirm connector style, terminal count, and mounting layout against the original unit before installation.

Quality Assurance

This Dorman replacement HVAC control module is fully tested before release. It is built as a direct-fit service part for the listed GM applications and is intended to restore normal climate control function after the original module fails.

This part fits 52 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002CadillacEscaladeFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002CadillacEscalade EXTFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletAvalanche 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletAvalanche 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSilverado 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSilverado 1500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSilverado 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSilverado 2500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSilverado 3500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSuburban 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletSuburban 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002ChevroletTahoeFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCSierra 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCSierra 1500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCSierra 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCSierra 2500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCSierra 3500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCYukonFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCYukon XL 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2002GMCYukon XL 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSilverado 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSilverado 1500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSilverado 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSilverado 2500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSilverado 3500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSuburban 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletSuburban 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001ChevroletTahoeFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCSierra 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCSierra 1500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCSierra 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCSierra 2500 HDFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCSierra 3500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCYukonFront HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCYukon XL 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2001GMCYukon XL 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletSilverado 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletSilverado 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletSuburban 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletSuburban 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletTahoe5.3LV8Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000ChevroletTahoe4.8LV8Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCSierra 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCSierra 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCYukon5.3LV8Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCYukon4.8LV8Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCYukon XL 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
2000GMCYukon XL 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
1999ChevroletSilverado 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
1999ChevroletSilverado 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
1999GMCSierra 1500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
1999GMCSierra 2500Front HVAC Control Module: w/Manual Air Conditioning Controls, without Rear Window Defogger, Remanufactured
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S1091315-7252853-123252403-48460915054697HS394