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NHTSA-Verified · Common Problems

2020 GMC Sierra 1500
Common Problems

Ranked from 179 federal NHTSA complaints and 2 recalls. Every problem links to the complaint IDs behind it.

2
Safety
6
High severity
6
Medium
1
Low
2 problems on this vehicle involve a crash, fire, or injury risk. If you are experiencing one, stop driving and have it inspected.

15 Common Problems

Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.

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  1. 1

    Engine Lifter Failure

    69complaints
    Safety riskEngine

    Multiple cylinders' lifters failed, causing engine misfires and severe damage.

  2. 2

    Suspension Component Failure

    57complaints
    High severitySuspension

    Suspension components, such as control arms, fail, leading to vehicle instability and potential accidents.

    $150–$1,200est. suspension diagnosis + repair · 1–5 hrs labor
    Get local quotes
  3. 3

    Engine Failure Due to Dynamic Fuel Management System Issues

    38complaints
    Safety riskEngine

    The engine fails due to issues with the Dynamic Fuel Management (DFM) system, causing severe misfires and requiring engine replacement.

    $4,000–$8,000est. engine replacement · 12–20 hrs labor
    Get local quotes
  4. 4

    Engine Stall at Idle

    8complaints
    Medium severityEngine

    Engine stalls at idle due to misfires and lack of power, often without warning.

    $150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs labor
    Get local quotes
  5. 5

    Engine and Transmission Software Issues

    5complaints
    Medium severityOther

    Software issues leading to transmission hesitation and engine misbehavior, often requiring software updates or repairs.

    $200–$2,500est. drivetrain diagnosis + repair · 1–8 hrs labor
    Get local quotes
  6. 6

    Engine Overheating

    5complaints
    Medium severityEngine

    Engine overheats, often reaching dangerously high temperatures, leading to engine failure and requiring immediate attention.

    $150–$1,200est. cooling-system diagnosis + repair · 1–6 hrs labor
    Get local quotes
  7. 7

    Engine Seizure and Catastrophic Failure

    5complaints
    High severityEngine

    Complete engine failure with no prior warning, leading to loss of power and potential roll-over situations.

    $4,000–$8,000est. engine replacement · 12–20 hrs labor
    Get local quotes
  8. 8

    Engine Ticking Noise

    4complaints
    Medium severityEngine

    Persistent ticking noise from the engine, often occurring when cold, indicating potential internal engine wear or failure.

  9. 9

    Transmission Failure

    4complaints
    Medium severityTransmission

    The transmission fails unexpectedly, causing the vehicle to stall and preventing proper gear shifting.

    $2,500–$5,500est. transmission rebuild/replacement · 8–16 hrs labor
    Get local quotes

    Related recalls: 24V797000, 26V083000

  10. 10

    Engine Cam Shaft Damage

    3complaints
    High severityEngine

    The engine's cam shaft is damaged due to issues with the Dynamic Fuel Management (DFM) system, leading to engine replacement.

  11. 11

    Engine Knocking and Loss of Power

    3complaints
    High severityEngine

    Engine produces a knocking sound and experiences a loss of power, often leading to engine failure and requiring immediate attention.

    $150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs labor
    Get local quotes
  12. 12

    Engine Misfire and Rough Idle

    3complaints
    Medium severityEngine

    Engine misfires and runs roughly, often accompanied by a flashing check engine light, indicating underlying mechanical issues.

    $200–$900est. ignition service (coils/plugs) · 1–4 hrs labor
    Get local quotes
  13. 13

    Engine Rod Bearing Failure

    3complaints
    High severityEngine

    The engine's rod bearings seize, causing the vehicle to randomly shut off and requiring a complete engine replacement.

  14. 14

    Engine Crankshaft Failure

    2complaints
    High severityEngine

    The engine's crankshaft fails, leading to a loud rattling sound and the need for immediate engine replacement.

  15. 15

    Engine Stall at Idle Due to Stop-Start System Failure

    2complaints
    Low severityEngine

    The engine stalls at idle when the stop-start system malfunctions.

    $150–$900est. stop-start system diagnosis · 1–4 hrs labor
    Get local quotes

Other years & sources

2015 GMC Sierra 15002017 GMC Sierra 15002018 GMC Sierra 15002019 GMC Sierra 15002021 GMC Sierra 15002022 GMC Sierra 15002023 GMC Sierra 15002024 GMC Sierra 1500All NHTSA complaints for this vehicle →

Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.