Complaints peak with the 1994 (872 of 9,619). Tap any bar or generation.
What Suburban owners report across recent generations
Owner summary2021–present (12th generation)
On the 2021, NHTSA owners most often describe engine trouble, including check engine lights, lifter failures and stalls blamed on the fuel pump. CarComplaints has only four reports for 2021, citing a failed fuel pump control module, a sunroof leak and lifter and cam trouble. Recalls cover fuel pump control modules on 2021 models that can make the pump fail and cause a stall, and 6.2L V8 engines on 2021–2024 models whose connecting rods or crankshaft may have defects that lead to engine failure. [1] [2]
2015–2020 (11th generation)
Brakes lead NHTSA complaints on the 2015, with many owners describing a brake pedal that turns hard. CarComplaints ranks an A/C that stopped working first for 2015, followed by brakes that stopped working and transmission failure. Recalls cover brake vacuum pumps on 2015–2018 models whose output may drop over time and reduce brake assist, and 2015 models that can briefly lose electric power steering assist before it suddenly returns. [3] [4]
2007–2014 (10th generation)
Oil consumption is the best known complaint here. CarComplaints notes that thousands of owners report needing a quart of oil every 500 to 1,000 miles. On the 2007, NHTSA complaints center on air bag recalls, cracked dashboards and broken door handles. A recall covers passenger front air bag inflators on 2007–2011 models that may explode after long exposure to heat and humidity. [5] [6]
Owner summary updated September 25, 2026.