Is your defective GMC Sierra 2500 actually a LEMON?

Find out in 30 SECONDS or less if it qualifies for a REFUND or a CASH SETTLEMENT.

TSB Document:

Affected Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Summary
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.

Click a tab for more information.

Date Published
APR 08, 2021
NHTSA TSB #
10194084
Find something helpful? Spread the word.

Become a Fan & Spread the Word