This is a repair service for your 1999 through 2002 Chevy or GM climate control. GM had several climate controls available; units with manual control knobs, automatic, and also automatic with Celsius for the Canadian customers. Each of these climate controls is unique and cannot be swapped between trucks.
Tanin Auto Electronix started repairing GM climate control units around 2012. Each Generation truck has their own bulbs and design. The 1999-2002 was the first generation that was easily repairable and didn’t suffer from other problems compared to the older units. If you have other issues such as air flow, fan speed, or blower motor problems then typically the climate control won’t be the problem. There are rare cases where replacing the climate control will fix the problem. We focus on the lighting behind each dial and button so you area able to see the heater control at night.
If you have any dash switches, buttons, or other interior switches that are burned out or dim we recommend sending them in along with your climate control so they can be done at the same time.