Freshened for 2025, the Suburban wears a new face, with new headlights, grille, and lower fascia.
The outgoing model's unintuitive push-button gear selector has been replaced with a steering wheel stalk.
The 355-hp, 5.3-liter V8 and 420-hp, 6.2-liter V8 carry over, but there is a more powerful second-generation 305-hp, 3.0-liter inline-six diesel.
All three engines are paired with a 10-speed automatic transmission.
The three-row SUV is available in rear- and four-wheel drive, and it has a maximum towing capacity of 8,200 pounds.
An adaptive suspension is available using GM's clever magnetic shocks, which respond to road conditions, and an air suspension that can automatically level the SUV and allow ride-height adjustments will also be offered.
The Super Cruise hands-free driving system and trailer-compatible BSW are available.
The new for 2021 Suburban enters the modern era with an independent rear suspension that improved ride comfort, handling and third-row room.
This is a massive vehicle that’s very functional, comfortable and high-tech.
The standard 5.3-liter V8 is mated to a 10-speed automatic transmission and together the powertrain supplies plenty of predictable uninterrupted power.
The ride is comfortable but steadier in the Premier trim.
Handling is rather ponderous but safe.
The enormous cabin is eerily quiet.
Controls are mostly straightforward to use except for the tricky gear selector which was replaced with a more traditional column-mounted design for 2025.
It’s a big step to get into the Suburban and the tall hood cuts forward visibility.
Forward collision warning and automatic emergency braking with pedestrian detection are standard. Updates for 2022 include standard lane keeping assistance and lane departure warning.
Significant changes for the refreshed 2025 model include a larger 17.7-inch infotainment screen, a more powerful diesel engine and automatic emergency braking that functions at highway speeds.
The 2015 redesign brought a sumptuous and quiet interior, power folding second- and third row seats, as well as optional advanced safety features.
It's also more fuel-efficient than previous models.
Cabin finish and in-dash electronics are much improved.
The interior is considerably quieter too.
LT and LTZ models include standard forward-collision and lane-departure warning systems.
We'd also get the optional blind-spot monitoring system, which is helpful for keeping track of flanking vehicles.
If your budget allows, get the LTZ version because the available Magnetic Ride Control package significantly improves emergency handling, as well as ride quality.
Changes for 2016 include available Apple CarPlay capability, a heads-up display and lane-keeping assist.
More agility, better steering and brakes, along with a more efficient six-speed automatic transmission arrived with the 2007 redesign.
The interior was also significantly upgraded, but the third-row seats lack thigh support and don't fold into the floor, as some competitors' did by then.
The full-time four-wheel-drive system is a plus.
An immensely capable offering, GM's largest SUV can seat up to nine people, haul massive loads, or tow big trailers.
Sharing its basic platform with GM's pickups, power comes from a strong-but-thirsty 5.3-liter V8.
Ride, handling and braking are much improved over its predecessor, but parking is awkward and fuel economy, as you might imagine, is on the poor side.
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