March 7: GM 8L90 Transmission Lawsuit Survives Motion to Dismiss news | 2 days ago February 11: Recall: GMC Sierra 1500 Chrome Grille Deflectors Detach recalls | 26 days ago January 26: Shift to Park Lawsuit Transferred to Tennessee news | 42 days ago January 19: GM 6L90 Transmission Failures Seem to Be Over investigations | 49 days ago January 18: GM L87 Engine Failures Investigated in Nearly 877,000 Vehicles investigations | 50 days ago
GMC TSB #23-NA-170
2020 GMC Sierra 1500
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.
This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.