Sierra 1500 2021
GMC

Sierra 1500 2021

3.7
25 reviews
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The 2021 GMC Sierra 1500. A premium pickup with professional-grade capability and a more upscale character than its Silverado sibling.

Reviews 25

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SleepyQuokka77
· Nov 19, 2024
4/5

Excellent value at the spec I chose

Mid-spec was the sweet spot. Heated seats, wireless CarPlay, blind-spot monitoring all standard. Build quality honest and durable. No showiness, just exactly what I needed.

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ClumsyBaboon670
· Feb 16, 2025
2/5

Disappointed — expected better reliability

Bought on strong reviews and brand reputation. Ongoing electronic issues: infotainment crashed twice, emergency braking triggered unexpectedly three times. Dealer slow to acknowledge. Driving experience fine but reliability has soured everything.

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MightyArmadillo972
· Sep 05, 2024
2/5

Not what I expected

Reliability has been below the brand's reputation. Two dealer visits in the first year for issues that shouldn't exist on a new car. Interior quality also doesn't match the asking price.

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SwiftNarwhal382
· Jan 03, 2025
4/5

Impressed after 12 months

Sceptical when I ordered — playing it safe rather than exciting myself. A year in, genuinely impressed. More refined than expected, seats comfortable on long trips, nothing unexpected has gone wrong.

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RedArmadillo736
· Dec 22, 2024
5/5

Worth every penny

Spent more than budget allowed but the 2021 GMC Sierra 1500 justified every dollar. Cruising at highway speeds is serene, seats are supportive over distance, tech is useful rather than gimmicky. Running costs lower than expected.

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FluffyPenguin903
· Jan 13, 2025
5/5

Family road trip approved

1,200-mile round trip with two kids and a dog. Boot swallowed everything, rear space genuinely comfortable, fuel stops infrequent. Kids slept most of the way. Ultimate endorsement.

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CalmBaboon393
· Jan 09, 2025
2/5

Quality control issues from day one

Factory fit-and-finish issues: door seal whistles at speed, dashboard rattle took three dealer visits to fix, paint imperfection on boot lid. Disappointing for this price. Car should have been right first time.

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MightyBaboon889
· Mar 04, 2025
4/5

Surprisingly fun to drive

Bought for practicality, expected dull. Wrong. Chassis is genuinely sorted — accurate steering, good body control, eager engine. Makes you look forward to driving.

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WildArmadillo371
· Feb 26, 2025
3/5

It does the job, nothing more

The 2021 GMC Sierra 1500 is competent transportation. Nothing went wrong, nothing impressed me either. If you just need a reliable appliance this will serve you fine. If you want something engaging, look elsewhere.

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