Add your complaint?
Back
Crash Tests
10
TSBs
1261
Lemon Law
GMC
»
Sierra
»
2017
switch models
Acadia
C4500
C6500 Topkick
Canyon
Denali
Envoy
Envoy XL
Jimmy
S-15 Jimmy
Safari
Savana
Savana 3500
Sierra
Sierra 1500
Sierra 1500 Hybrid
Sierra 2500
Sierra 3500
Sonoma
Suburban
Terrain
Vandura 2500
Yukon
Yukon Hybrid
switch years
2022
2017
2012
2009
2007
2005
1995
1994
1993
1992
1989
1987
«
search for something else
GMC TSB #20NA038
2017 GMC Sierra
Affected Component: FUEL SYSTEM, DIESEL
Date Published
FEB 26, 2020
NHTSA TSB #
10172811
TSB Document
MC-10172811-9999.pdf
Summary
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.