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Reliability report · 2018 Chevrolet Malibu · Updated July 2026 · ~$2,100/yr fuel · what it costs to keep →

Last of the loud years — the recalls do more of the work here, so verify all six.

2018 is the final loud ninth-gen year, and its risk profile leans on recalls rather than quiet programs. Two matter most: recall 19V-642, a 1.5-liter-turbo engine-control-module software fault that can disable the fuel injectors and stall or no-start the car; and recall 20V-668, a start/stop accumulator with missing bolts that can leak transmission oil and progress to loss of propulsion or fire. The 2016–2018 accelerator-pedal Special Coverage still applies here for the reduced-power condition.

The 1.5T's underlying pre-ignition and vacuum-pump stories carry over, though the loudest piston-pre-ignition CSP was written for 2016–2017. On the hybrid, the complaint file is small but pointed: shift-to-park stalls where the car gets 'confused' between battery and engine, and fuel-injector failures. Verify all six recalls and the pedal program by VIN and this is a serviceable car; skip the one where the stall recall was 'done' but the car still stalls.

Evidence: 698 NHTSA complaints · 6 recall campaigns · 7 mechanic & forum sources

Canary status

Squawking

What that means: The 2018 still carries the ninth-gen 1.5-liter-turbo patterns — reduced power, hard-pedal brakes — but this is the year GM converted several into actual recalls: a 1.5T engine-control recall that can disable the fuel injectors, and a start/stop accumulator recall that can leak transmission oil. 698 federal complaints across the gas car and the low-volume hybrid.

CalmChirpingSquawkingFainted

698

Federal complaints

6

Recalls

Federal crash tests

5-star scale
Overall
Frontal crash
Side crash
Rollover

Tested variant: 2018 Chevrolet Malibu 4 DR FWD (NHTSA VehicleId 12012)

Source: NHTSA New Car Assessment Program (NCAP) →

Known issues

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

1.5T engine-control software can disable injectors — recall 19V-642

major
  • 1.5L turbo I4

Recall 19V-642 covers 2018 Malibus with the 1.5-liter turbo: an error in the engine-control-module (ECM) software can disable the fuel injectors, which prevents starting and can cause a stall — a crash risk in traffic. The remedy is a free ECM reprogram. Note the wrinkle in the complaint file: several owners report the recall was performed and the car still stalls, so on a car with a documented stall history, verify not just that 19V-642 was closed but that the stalling actually stopped.

This is a 1.5L turbo I4 problem. The 2.0L turbo I4 and Hybrid (eCVT) don’t share it.

Which engine is in the one you found? →

Under recall 19V-642

$0

Sources: NHTSA complaint database, 2018 Malibu and Malibu Hybrid · NHTSA manufacturer communications (recalls 19V-642, 20V-668, 18V-576; 2016–2018 accelerator-pedal Special Coverage; 1.5T charge-air-cooler bulletins; recall documents)

Start/stop accumulator missing bolts — recall 20V-668major

Recall 20V-668 covers the 2018 Malibu among many GM models: the stop/start transmission accumulator endcap may be missing bolts, which can leak transmission oil and progress to a loss of propulsion, and — with an ignition source — a fire. Dealers inspect the accumulator and replace it if bolts are missing, free. Because the symptom is a slow transmission-fluid leak, it's easy to miss on a used car; confirm this recall is closed and look for fluid seepage.

Sources: NHTSA complaint database, 2018 Malibu and Malibu Hybrid · NHTSA manufacturer communications (recalls 19V-642, 20V-668, 18V-576; 2016–2018 accelerator-pedal Special Coverage; 1.5T charge-air-cooler bulletins; recall documents)

$0

Under recall 20V-668

'Engine Power Reduced' — accelerator-pedal sensor (Special Coverage)major

  • 1.5L turbo I4

Still the loudest organic cluster: an interrupted accelerator-pedal-position-sensor connection drops the car into reduced-power limp mode (cut acceleration, Check Engine Light, 'Engine Power is Reduced' message, code P2138). GM's Special Coverage — a free extended repair program — reaches the 2016–2018 Malibu. On the 1.5T there is also a separate reduced-power cause, the charge-air-cooler outlet duct disconnecting from the throttle body (GM service bulletins cite codes P0101/P0172/P0299/P0506/P1101). Confirm the pedal Special Coverage was done and treat any reduced-power message as unresolved.

Sources: NHTSA complaint database, 2018 Malibu and Malibu Hybrid · NHTSA manufacturer communications (recalls 19V-642, 20V-668, 18V-576; 2016–2018 accelerator-pedal Special Coverage; 1.5T charge-air-cooler bulletins; recall documents)

$0 (verify terms in the bulletin)

Under the accelerator-pedal Special Coverage

Brake vacuum pump / booster — hard pedal; recall 18V-576moderate

Two brake items. The vacuum-pump hard-pedal pattern (code P1101, GM 'increased brake pedal effort' bulletin) carries into 2018 as on the earlier cars. Separately, recall 18V-576 covers a rear brake caliper piston with insufficient coating that can form gas pockets and reduce rear braking; the free remedy is a brake-system bleed. Test the pedal firmly with the engine off then running, and confirm 18V-576 is closed.

Sources: NHTSA complaint database, 2018 Malibu and Malibu Hybrid · NHTSA manufacturer communications (recalls 19V-642, 20V-668, 18V-576; 2016–2018 accelerator-pedal Special Coverage; 1.5T charge-air-cooler bulletins; recall documents)

$0

Under recall 18V-576 (caliper bleed)

$800–$1,500 (mechanic-quoted)

Vacuum pump / booster replacement

Shift-to-Park and hybrid 'confused' stallsmoderate

The GM 'Shift to Park' false message appears here too — the car reports it isn't in park when it is, sometimes blocking shutdown and draining the battery. On the low-volume 2018 hybrid, the complaint file adds stalls where a dealer told the owner the car was 'confused' between running on the battery and the combustion engine, plus fuel-injector failures. Neither the shift-to-park issue nor the hybrid stall has a clean recall fix; a repeated pattern is a known headache, not a fluke.

Sources: NHTSA complaint database, 2018 Malibu and Malibu Hybrid

My 2018 Malibu is stalling, it is covered under recall, and the dealer is refusing to properly scan or fix the issue.
From an owner’s federal complaint. Unverified; one voice out of 698.

Open recalls

Free fixes at any Chevrolet dealer. Run the VIN — “completed” isn’t always completed.

  1. 19V-6421.5L turbo ECM software may disable the fuel injectors — no-start or stall risk. Free ECM reprogram, 2018 Malibu with 1.5L turbo (GM N192221960).VERIFY BY VIN
  2. 20V-668Start/stop transmission accumulator endcap may have missing bolts — transmission oil leak, possible loss of propulsion or fire. Free inspect/replace, 2018 Malibu among many (GM N202313440).VERIFY BY VIN
  3. 18V-576Rear brake caliper pistons may have insufficient coating, forming gas pockets that reduce rear braking. Free brake-system bleed, 2018 Malibu (GM 18279).VERIFY BY VIN
  4. 18V-358High-pressure fuel pump may detach from its mounting flange and damage the fuel line — fire risk. Free pump and pipe replacement, 2016–2018 (GM 18188).VERIFY BY VIN
  5. 18V-400A service-installed passenger-presence system may be miscalibrated, so the front passenger air bag may not deploy correctly. Free seat service kit, 2016–2018 (GM 18208).VERIFY BY VIN
  6. 21V-649Rear seat-belt retractors may be improperly secured with loose or missing fasteners. Free inspect/tighten, 2016–2021 (GM N212333380).VERIFY BY VIN

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 — 2018 Malibu

Three sourced numbers. No fake total.

Fuel

30 MPG combined (27 city / 36 highway) for the FWD, 1.5L turbo on the EPA federal fuel-economy test.

Source: FuelEconomy.gov (EPA) — EPA’s federal fuel-economy test, recomputed with current gas prices. EPA record 38849 (Malibu).
Other builds EPA lists: FWD, 2.0L turbo (premium fuel) 26 MPG · Hybrid FWD, 1.8L 46 MPG.

$2,100/yr

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

Theft

Stolen at about the average rate.

Source: HLDI — the insurance industry’s loss-data institute — HLDI whole vehicle theft losses, 2016–18 models, published May 2019 (report WT-18). 100 = the all-vehicle average. Series read: Chevrolet Malibu.

95 vs 100

5% 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.

Under recall 19V-642$0
Under recall 20V-668$0
Under the accelerator-pedal Special Coverage$0 (verify terms in the bulletin)
Under recall 18V-576 (caliper bleed)$0
Vacuum pump / booster replacement$800–$1,500 (mechanic-quoted)
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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Before you buy

Print this
  1. 01On a 1.5T, verify recall 19V-642 (injector-disabling ECM software) is closed — and if the car has a stall history, confirm the stalling actually stopped.
  2. 02Confirm recall 20V-668 (start/stop accumulator) is closed and look for transmission-fluid seepage.
  3. 03Check that the 2016–2018 accelerator-pedal Special Coverage was done; treat any 'Engine Power Reduced' message as unresolved.
  4. 04Test the brakes firmly (vacuum-pump hard-pedal) and verify recall 18V-576 (rear caliper bleed).
  5. 05Run the VIN for 18V-358 (fuel pump) and 18V-400 (passenger air bag) as well.
  6. 06On a hybrid, probe for shift-to-park stalls and 'battery/engine confused' behavior on the test drive.
  7. 07Watch for the general shift-to-park message and a dead 12-volt battery.

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