NHTSA Complaint #11654173 — 2021 GMC SIERRA 1500

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11654173
Vehicle	2021 GMC SIERRA 1500
Component	ENGINE
Date of Incident	April 6, 2025
Date Filed	April 11, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

at 16,000 miles Bank 1 lifters fail and replaced under warranty. now at 90190 miles Bank 1 lifters have failed again this time damaging the camshaft. I have all the service records for this engine and I was verbally assured by GM in 2021 that they would cover this repair until 100,000 miles. I know from looking on Google and talking with service advisors at GM that the 6.2L ecoTec3 V8 engines are having multiple problems related to my issue. GM should be able to warranty this engine to 100,000 miles and from past experience this engine should last 200,000 with good service.

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