Service Update
Buick technical service bulletin 18247 for 2018 Buick Regal.
- Bulletin number
- 18247
- Component
- Electrical system: instrument cluster/panel
- Summary
- 18247 - Service Update - Certain vehicles with C3 clusters and RPO IOS radios show speed limit signs with ??? as the posted speed on the cluster. It does not state the actual speed limit on the road and should be recalibrated to remove from display. Vehicle needs to be re-calibrated to remove ?Speed Sign? because IOS radios do not support this feature.
Owners of these vehicles have filed 3 complaints in the electrical category.
Vehicles covered
- Buick Regal 2018 2018
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