Dorman 599-029 HVAC Control Module - Front or Rear

Dorman 599-029 HVAC Control Module

Restore cabin climate control operation with this Dorman HVAC Control Module. Built as a tested replacement for the original unit, it addresses failed manual climate controls in select 2002 Chevrolet Trailblazer, GMC Envoy, and Oldsmobile Bravada applications.

Key Features

• Direct replacement HVAC control module for manual air conditioning systems
• Fully tested replacement unit for dependable operation
• No programming required
• Bolt-on mounting design with female connector and male terminals
• Black housing with 26-pin configuration and 16 terminals
• Compatible with front and rear positions on listed vehicles

Product Details

The Dorman 599-029 is an HVAC control module for vehicles equipped with manual air conditioning controls and without a rear window defogger. It is engineered for 2002 Chevrolet Trailblazer, 2002 Chevrolet Trailblazer EXT, 2002 GMC Envoy, 2002 GMC Envoy XL, and 2002 Oldsmobile Bravada applications in both front and rear positions where listed. This part cross-references 15-72740 and 15076096 for the same application.

What It Helps Fix

• Nonresponsive temperature or fan control inputs
• Intermittent HVAC control operation
• Failed manual climate control module functions
• Loss of normal cabin airflow adjustment
• Original module electrical faults in the dash control system

Installation Notes

Fits 2002 Chevrolet Trailblazer, front and rear; 2002 Chevrolet Trailblazer EXT, front and rear; 2002 GMC Envoy, front and rear; 2002 GMC Envoy XL, front and rear; and 2002 Oldsmobile Bravada, front and rear. Verify the vehicle uses manual air conditioning controls and does not have a rear window defogger before installation. No programming is required, and the module mounts with a bolt-on design. Confirm connector style, pin count, and terminal layout against the original unit before replacement.

Quality Assurance

This Dorman replacement HVAC control module is fully tested before release to support reliable operation after installation. Dorman is known for replacement components that match the original application requirements for service repairs.