What are the most common GMC Suburban problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1993 GMC Suburban has 1 documented issue. The documented issue is: Rear HVAC Blower Motor and Heater Core Failure. None are rated critical, but regular maintenance is recommended.

Is the GMC Suburban reliable?

The 1993 GMC Suburban has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common GMC Suburban problems?

Repair costs for known GMC Suburban issues range from $150 to $600, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 1992-1999 GMC Suburban Rear HVAC Blower Motor and Heater Core Failure?

The rear heating and A/C system suffers from blower motor failure and rear heater core leaks. The rear heater core is located under the rear cargo area and is susceptible to coolant corrosion. Repairs typically run $150-$600. Severity: low.

GMC · Known Issues

1993 GMC Suburban Problems: 1 Issue Every Owner Should Know

1993 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1993 GMC Suburban has 1 documented issue. No issues are rated critical, indicating generally reliable ownership. Across all issues with published estimates, repair costs range from $150 to $600. DIY maintenance guides at au7o.io.

1993 GMC Suburban Problems: 1 Issue Every Owner Should Know

All 1 Known Issue

1992-1999 GMC Suburban: Rear HVAC Blower Motor and Heater Core Failure#

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Frequently Asked Questions

What are the most common GMC Suburban problems?

Is the GMC Suburban reliable?

How much does it cost to fix common GMC Suburban problems?

What is the 1992-1999 GMC Suburban Rear HVAC Blower Motor and Heater Core Failure?