Manufacturer recall number

Mazda recall 6423L

Q: Is 6423L the same recall as 23V837000?

Yes. 6423L is Mazda’s own number for it; 23V837000 is NHTSA’s. One recall, two references.

Mazda calls it 6423L. NHTSA filed it as campaign 23V837000 on Dec 12, 2023: air bags on the 2004–2006 Mazda B-Series Truck, 12,741 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

The full filing, 23V837000 →Check a VIN at NHTSA Mazda’s own VIN lookup →

What NHTSA has under this number

Source: 49 CFR Part 573 filings

NHTSA campaign	Vehicles	Component	Filed	Affected	Severity
23V837000	2004–2006 Mazda B-Series Truck	Air Bags	Dec 12, 2023	12,741	high

Problem Mazda North American Operations (Mazda) is recalling certain 2004-2006 B-Series vehicles that received replacement front passenger air bag inflators under a previous recall. The replacement front passenger air bag inflators may have been installed incorrectly. Risk An incorrectly installed inflator may not properly inflate the passenger air bag, increasing the risk of injury during a crash. Fix Dealers will inspect and reinstall the front passenger air bag inflator, as necessary, free of charge. Owner notification letters were mailed February 1, 2024. Owners may contact Mazda customer service at 1-800-222-5500 Option 6. Mazda's number for this recall is 6423L.

The manufacturer’s own words as filed for 23V837000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. 6423L is the number Mazda assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 23V837000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

NHTSA VIN recall lookup →Mazda’s own VIN lookup →

Common questions

Source: NHTSA, 49 CFR Part 573

Is 6423L the same recall as 23V837000?

Yes. 6423L is Mazda’s own number for it; 23V837000 is NHTSA’s. One recall, two references.

Which vehicles does 6423L cover?

2004–2006 Mazda B-Series Truck, 12,741 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the 6423L repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.