2020 Mazda CX-30 · Brakes & vehicle control
Loose front brake caliper bolts may affect braking
NHTSA campaign 20V346000 lists the 2020 Mazda CX-30 for a condition in which loose front brake caliper bolts may affect braking.
What the reviewed source says
Start with the documented condition, not a parts guess.
NHTSA lists the 2020 Mazda CX-30 in safety campaign 20V346000. The official record says: The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen. The stated safety consequence is: Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash. A make, model and year match does not confirm that a specific VIN is included or that the repair remains open.
Words owners may use
Does this match the moment?
Symptoms in the pattern
- Braking performance may decrease if a caliper loosens.
- A loose caliper may interfere with front wheel rotation or handling.
Vehicles and scope
- 2020 Mazda CX-30
- Vehicles included in NHTSA campaign 20V346000
- VIN confirmation is required
Manufacturer position
What the official procedure directs
Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.
Campaign 20V346000 is based on the recalled vehicle population and VIN, not a published mileage threshold. Mileage alone cannot confirm or exclude it.
Original evidence
Open the documents behind this page.
Repair paths and safe checks
Separate the diagnosis from the action.
Complete recall 20V346000
Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.
A year and model match does not confirm VIN eligibility. Do not substitute an owner repair for an open safety recall.
What owners reported
Did this repair fix the same symptom on your car?
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Check the VIN and record what happened
Check the 17-character VIN with NHTSA or Mazda. Save campaign 20V346000, any warning messages and a short description of when the symptom occurred for the service appointment.
Do not recreate a dangerous symptom for a photo or video.
What owners reported
Did this repair fix the same symptom on your car?
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Useful before authorizing work
Read the method beside the problem
These guides explain the safety and evidence checks that apply to this problem file.
Check recalls by VIN
A VIN search checks the displayed NHTSA records for an unrepaired safety recall associated with one vehicle. A model search shows only the wider campaign population.
Read guide ↗When a car is unsafe
A warning light does not always mean the same thing, but weak brakes or smoke leave little room for experimentation. Damaged tires and certain recall instructions can do the same.
Read guide ↗Why symptoms overlap
“It makes a weird noise” is useful human language. Diagnosis begins when that language is tied to the exact vehicle and its operating conditions.
Read guide ↗More for this model
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2022 to 2023 Mazda CX-30 · Brakes
Braking performance may be reduced
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