Suburban (K2XX)
Engine Reliability Comparison
LLT
3.6L 6-cylView details
Complaint Breakdown
Known Issues
LV1 - VVT, E85 Max, Iron
4.3L 6-cylView details
Complaint Breakdown
Known Issues
LM7
5.3L 8-cylView details
Complaint Breakdown
Known Issues
L86 - SIDI VVT, AFM, E85 MAX, ALUM
6.2L 8-cylView details
Complaint Breakdown
Known Issues
L83 - VVT, Active Fuel Management, Aluminum.
5.3L 8-cylView details
Complaint Breakdown
Known Issues
Vehicle-Level Issues
These issues affect the Chevrolet Suburban regardless of engine variant.
All Generations
Alternatives in Full-Size SUV
Frequently Asked Questions
What are the most common 2015-2020 Chevrolet Suburban problems?
The 2015-2020 Chevrolet Suburban has accumulated 950 NHTSA complaints. The most frequently reported problem areas are Brakes, Transmission, Engine. As with any used vehicle, a pre-purchase inspection and vehicle history report are recommended.
Which Chevrolet Suburban engine is most reliable?
The 2015-2020 Chevrolet Suburban was offered with 5 engine options. Based on NHTSA complaint data, the 5.3L 8-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2015-2020 Chevrolet Suburban a good used car?
The 2015-2020 Chevrolet Suburban can be a solid used car purchase depending on trim, mileage, and maintenance history. With 950 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2015-2020 Chevrolet Suburban have?
The 2015-2020 Chevrolet Suburban has 950 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2015-2020 Chevrolet Suburban?
There are 0 NHTSA recalls affecting some 2015-2020 Chevrolet Suburban vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Chevrolet Suburban?
Before buying a used Chevrolet Suburban, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Brakes, Transmission, Engine, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
Data from NHTSA federal complaints database. 950 complaints analyzed. Data confidence: high. Last updated: 2026-04-06.