2020 GMC Sierra 1500 engine problems
The 2020 GMC Sierra 1500 has 226 engine complaints filed with NHTSA — 35% of the year's total, and roughly flat versus the prior model year.
226
Engine complaints
35%
Share of year
2
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“MY 2020 GMC SIERRAS BRAKES FAILED ON MAY 22ND AND ECM AND NOW THE ENGINE AND TRANSMISSION ARE EXPERIENCING ISSUES BASED ON THE ONSTAR REPORT.”
Common questions
How many engine complaints does the 2020 GMC Sierra 1500 have?
NHTSA has 226 complaints about the 2020 GMC Sierra 1500 engine — 35% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.