* Based on opinions and should be considered as general guidance only.
- Reliability (4)GMC heavy-duty trucks generally have a strong reputation for reliability, and the 2024 model is expected to continue this trend with robust powertrains and durable components.
- Maintenance (3)Maintenance costs are typical for a heavy-duty truck, meaning parts and labor can be more expensive than for a standard passenger vehicle. Fuel economy, while improved, is still a factor.
- Technology (3)The infotainment system is user-friendly with a good-sized touchscreen and essential features. However, it lacks some of the cutting-edge driver-assist technologies found in higher trims or some competitors.
- Comfort (4)The cabin is spacious and the seats are comfortable, even on long drives. Road noise is well-managed, contributing to a pleasant ride quality for a truck of this size.
- Dynamics (4)For a heavy-duty truck, the 2024 GMC Sierra 2500HD SLE handles surprisingly well. It feels stable on the highway and the steering is more responsive than expected, though it's still a large vehicle.