Loss of One or More HVAC Blower Motor Speeds on Buick Rainier

Problem Description and Possible Solution

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

Problem Data
RepairPal Verified
Average mileage: 135,474 (106,000–164,000)
3 model years affected: 2004, 2005, 2006
14 people reported this problem
Viewing 1 - 4 of 4 comments
The blower was working on Saturday and the rear blower was working on Sunday morning. Sunday afternoon neither was working.
Replaced resistor twice and still the heat stopped working. Have not checked the heater control module yet. Just don't know what to do