Buick Repair Questions? Ask a Mechanic for Answers ASAP
Dex-Cool is the recommended coolant for this vehicle. There are no "official" problems with the use of Dex-Cool in these vehicles. No Technical Service Bulletin. No Recalls. Sometimes, the Coolant Level Sensor internal of the Coolant Reservoir can be affected by the Dex-Cool, but like I say, no "official" word on that. Was there a specific problem you had in mind?