GMC TSB #N192279900
2020 GMC Sierra 2500
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel vibration while driving typically at speeds from 50 mph (80 km) to 80 mph (130 km). Dealers are to reprogram the power steering control module.