Coming Soon
Chevrolet Suburban T1XX (12th Generation)
2021–2026 · GMT T1XX · suv
Twelfth-generation Suburban on the GMT T1XX platform (sibling to T1XX Tahoe / Yukon XL / Escalade ESV). First Suburban with independent rear multilink suspension. Engines: 5.3L L84 V8 (DFM), 6.2L L87 V8, 3.0L LM2/LZ0 Duramax inline-six diesel. 10-speed automatic.
Watch out: 3.0L LM2 Duramax CP4.2 fuel pump failure on 2020-2022 builds — pump shrapnel contaminates the entire fuel system; $10,000+ repair. NHTSA investigation EA22-002 documents the pattern.
Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.
← Back to all vehicles