What reliability score does the Chevrolet Tahoe get?

2.9 out of 10, scored from the 8 faults we document for this model and how severe each one is.

Is the 2015–2020 Chevrolet Tahoe reliable?

Scored from 8 documented faults · reviewed by the VehicleFaults Research Team

Quick answer

2.9/ 10

Buy with caution

On our documented-fault scoring the Chevrolet Tahoe rates 2.9 out of 10 · buy with caution. We hold 8 known faults for it and 1 of them are rated critical and 3 high, so a bad example can be expensive. The weak points cluster around engine, transmission and interior. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.

Verdict · Walk unless the history is spotless

What the score is built from

Critical: 1
High: 3
Medium: 3
Low: 1

Weak points cluster around engine, transmission, interior, suspension.

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The faults that decide it

EngineCritical

AFM/DFM lifter failure causing a tick, misfire and lost cylinder.

Typically appears: 80,000+ miles
What to inspect: Listen for lifter tick and check for misfire codes; ask about any lifter work.
Typical repair: Major mechanical repair · £800–£2,500

EngineHigh

Oil consumption linked to AFM.

Typically appears: 70,000+ miles
What to inspect: Check oil level and consumption history.
Typical repair: Oil leak trace & seal / gasket · £180–£700

SuspensionHigh

Harsh ride and knocking over bumps due to Magnetic Ride Control (MagneRide) damper failure.

Typically appears: 50,000-80,000 miles
What to inspect: Shine a torch into the wheel arches to check the shock absorber bodies for heavy oil weeping or caked-on dirt. Push down on the vehicle corners to check for excessive stiffness.
Typical repair: Suspension refresh (per axle) · £250–£1,100

BrakesHigh

Extremely hard brake pedal at low speeds due to mechanical vacuum pump failure.

Typically appears: 60,000-100,000 miles
What to inspect: Start the engine and pump the brake pedal rapidly several times, then hold it. The pedal should remain assisted and not go rock-hard. Listen for a loud ticking from the engine bay.
Typical repair: Brakes (discs, pads, caliper) · £200–£800

TransmissionMedium

6-/8-speed shift quality and shudder.

Typically appears: 90,000+ miles
What to inspect: Feel for harsh shifts and shudder.
Typical repair: Routine repair · £180–£700

Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.

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What the score is built from

The faults that decide it

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