Recalls and bulletins

Duramax LB7-LMM (2001-2010) recalls and service bulletins

1 NHTSA safety recall name this engine. Each entry shows the campaign number, the model years, what was wrong and what the fix is.

Duramax LB7-LMM (2001-2010): failure modes and parts Safety recalls 1

Check a specific truck: enter its VIN at nhtsa.gov/recalls for open safety recalls, and ask a dealer about emissions recalls and coverage programs, which NHTSA's lookup does not always show. Recall repairs are free on an eligible VIN.

Safety recalls (NHTSA)

Newest first. NHTSA's own summary and remedy text, for the models and years this engine was sold in.

01V-220 Safety recall June 26, 2001 · 2001-2002

VEHICLE DESCRIPTION: CERTAIN PICKUP TRUCKS EQUIPPED WITH 6.6L DIESEL ENGINES FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 105, "HYDRAULIC AND ELECTRIC BRAKE SYSTEMS." THESE VEHICLES HAVE A BRAKE SYSTEM WARNING LIGHT IN THE INSTRUMENT CLUSTER THAT MAY NOT ILLUMINATE WHEN THE BRAKE FLUID IS LOW. IN ADDITION, WHEN THE BRAKE FLUID IS LOW, THE VEHICLE MAY NOT MEET THE PARTIAL SYSTEM REQUIREMENTS OF FMVSS NO. 105.

Risk and remedy

Risk: THESE CONDITIONS COULD RESULT IN REDUCED BRAKING CAPABILITY, WHICH COULD LEAD TO A CRASH.

Remedy: DEALERS WILL CHANGE THE LOCATION OF A WIRE CONNECTION IN THE UNDERHOOD BUSSED ELECTRICAL CENTER. OWNER NOTIFICATION BEGAN JULY 9, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHEVROLET AT 1-800-222-1020 OR GMC AT 1-800-462-8782.

Models in our scope: SIERRA 2500, SIERRA 3500, SILVERADO 2500, SILVERADO 3500

Bulletins, programs and coverage

Manufacturer service bulletins, special coverages, programs and emissions recalls that bear on this engine's documented failures. Identifier, date and scope only; bulletin text is the manufacturer's.

No manufacturer bulletins are documented in our records for this engine yet. That is a gap in our records, not proof that none exist.

Method: safety recalls come from NHTSA's recall database, pulled for every make, model and year this engine covers; a recall is listed when its NHTSA text names this engine (fuel type, displacement or engine family) and left out when it names no engine. Defect investigations come from NHTSA's investigations file by the same rule, or when the investigation cites a recall listed here. Bulletins and programs come from the failure-mode records on this site, each with its source. Pulled 2026-10-26. How we tier and source facts.