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Reliability report · 2020 Mazda CX-5 · Updated July 2026 · ~$2,200/yr fuel · what it costs to keep →

A calmer year with no confirmed recalls — but the cracked-head risk hasn't fully cleared yet.

The 2020 CX-5's complaint count drops to 105, and our recall check found no confirmed safety recall for the year (see the data note). The engine issues from 2018–2019 are receding but not gone: the cracked cylinder head still appears, along with timing-cover oil leaks and the P0126 fail-safe-thermostat code. A phantom-braking (false Smart Brake Support activation) note runs through the file at low frequency.

The coverage picture helps: the turbo's cracked-head coolant leak carries the CSP11 powertrain extension (10 years/120,000 miles), and the P0126 thermostat carries SSPD8 (15 years/150,000 miles). The non-turbo's oil-leak version of the cracked head remains the uncovered one — so the engine inspection still matters. A solid buy with the checks done.

Evidence: 105 NHTSA complaints · 0 recall campaigns · 7 mechanic & forum sources

Canary status

Chirping

What that means: 105 federal complaints and no safety recall confirmed for 2020 as of this check. The volume is low, but the cracked cylinder head and timing-cover oil leak still appear on the non-turbo 2.5, and the P0126 thermostat shows up. Two Mazda warranty extensions cover the coolant-side and thermostat issues — verify which apply. Better than the 2018–2019 cars, not yet as settled as 2022–2023.

CalmChirpingSquawkingFainted

105

Federal complaints

0

Confirmed recalls

Federal crash tests

5-star scale
Overall
Frontal crash
Side crash
Rollover

Tested variant: 2020 Mazda CX-5 SUV FWD (NHTSA VehicleId 14201)

Source: NHTSA New Car Assessment Program (NCAP) →

Known issues

Ranked by the cost of ignoring them. Every claim carries its source.

Cracked cylinder head and timing-cover oil leak (2.5L non-turbo)

major
  • 2.5L SkyActiv-G (non-turbo, cylinder deactivation)

The engine pattern from the earlier gen-2 cars still surfaces on the 2020, though less often: a cracked cylinder head leaking oil onto the exhaust on the naturally aspirated 2.5, plus timing-cover and oil-seal leaks. On the non-turbo engine the oil-leak version is not warranty-extended (Mazda revised the head design rather than extend coverage), so an out-of-warranty repair is the owner's. Inspect for oil near the exhaust and timing cover and get any leak-repair history.

This is a 2.5L SkyActiv-G (non-turbo, cylinder deactivation) problem. The 2.5L SkyActiv-G Turbo (2.5T) doesn’t share it.

Which engine is in the one you found? →

Cracked-head / timing-cover repair (owner reports)

several thousand

Sources: NHTSA complaint database, 2020 Mazda CX-5 · Independent mechanic and owner channel transcripts (CX-5 second generation)

Turbo cracked-head coolant leak — CSP11 extensionmoderate

  • 2.5L SkyActiv-G Turbo (2.5T)

On the turbo 2.5T, the cracked head shows as a coolant leak and is covered by CSP11, Mazda's Customer Service Program extending the powertrain warranty to 10 years or 120,000 miles (2019–2020 CX-5 turbo among others). If you're looking at a 2.5T, confirm CSP11 is in the history — it's the protected side of the same defect.

Sources: NHTSA manufacturer communications (CSP11/SSPD8 warranty-extension windows) · Independent mechanic and owner channel transcripts (CX-5 second generation)

$0 (if in window)

CSP11 covered repair

P0126 thermostat (SSPD8) and phantom brakingminor

Two lighter items. The 2020 falls in SSPD8, the warranty extension (15 years/150,000 miles) for a check-engine light with code P0126:00 from a fail-safe thermostat stuck open — cheap and covered if the code shows. Separately, a low-frequency phantom-braking pattern appears: the Smart Brake Support activating with nothing ahead. There's no recall for it; test the safety-assist behavior on the drive and note any dash malfunction history.

Sources: NHTSA complaint database, 2020 Mazda CX-5 · NHTSA manufacturer communications (CSP11/SSPD8 warranty-extension windows)

By 2020 the file thins out, but the cracked-head and timing-cover oil leaks are still in it — so the engine inspection still matters.
7 mechanic & owner sources

Safety recalls

A verified zero — not an unchecked one. Here’s what that means.

No NHTSA safety recalls — verified July 11, 2026

Checked against NHTSA’s recall database on July 11, 2026. Any manufacturer Special Coverage programs for this year are listed under the issues above, not here.

What it costs to keep

The purchase price is what you negotiate. These are the numbers you live with afterward — each one sourced, none of them blended into a fake total.

The ownership picture — 2020 CX-5

Four sourced numbers. No fake total.

Fuel

28 MPG combined (25 city / 31 highway) for the FWD, 2.5L on the EPA federal fuel-economy test.

Source: FuelEconomy.gov (EPA) — EPA’s federal fuel-economy test, recomputed with current gas prices. EPA record 42344 (CX-5 2WD).
Other builds EPA lists: 4WD, 2.5L turbo 24 MPG.

$2,200/yr

at $4.15/gal · 15,000 mi/yr · 55/45 city/hwy · pulled Jul 12, 2026

Crash losses

Insurers lose about 25% less on this vehicle than on the average car. Lower collision losses tend to show up in what you pay for coverage.

Source: HLDI — the insurance industry’s loss-data institute — HLDI collision losses, 2020–22 models, published April 2023 (report R-23). 100 = the all-vehicle average. Series read: Mazda CX-5 4dr 4WD.

75 vs 100

25% below average

Theft

Stolen about 69% less often than the average vehicle. One less thing to price into coverage.

Source: HLDI — HLDI whole vehicle theft losses, 2020–22 models, published April 2023 (report WT-22). 100 = the all-vehicle average. Series read: Mazda CX-5 4dr 4WD.

31 vs 100

69% below average

Repair risk

What this specific year is known to need. Pulled from the issues above — the repairs owners actually report, at the costs they report them. Averages from other sites blend every year together; these are this year’s own numbers.

Source: this report — 01 Known issues.

Cracked-head / timing-cover repair (owner reports)several thousand
CSP11 covered repair$0 (if in window)
Why there’s no single “cost to own” number: sites that promise one are guessing at your insurance quote, your annual miles, and your luck. These are the numbers we can actually source — and each one carries its receipt.

Shopping this year?

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Have a specific one in your sights?

The VIN is on the listing. We’ll check this exact car — build, open recalls, and whether the “completed” repairs stayed fixed.

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Before you buy

Print this
  1. 01Inspect the engine for oil near the exhaust and timing cover (non-turbo) or coolant (turbo) — the cracked-head pattern is thinner here but not gone.
  2. 02On a turbo 2.5T, confirm CSP11 (coolant-leak powertrain extension, 10yr/120k) is in the history.
  3. 03Confirm the P0126 thermostat program SSPD8 (15yr/150k) is noted and the engine warms to normal temperature.
  4. 04Test the Smart Brake Support / automatic braking for false activation on the drive.
  5. 05Re-run the VIN on NHTSA's own recall lookup before purchase — our automated recall check returned no campaign for 2020, but confirm directly (see data note).
  6. 06Verify maintenance records; the 2.5 rewards regular oil service and is durable when maintained.

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