One problem related to defogger has been reported for the 2004 Buick Rainier. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Buick Rainier based on all problems reported for the 2004 Rainier.
Windshield icing even with full defroster at moderate air temperature/air duct too small for width of windshield,dealership will not fix.
| Defogger problems | |
| Blower problems | |
| Power Window problems | |
| Wiper problems |