# Service bulletin MT\-001\-19

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10154487
- Published by NHTSA: 2019\-03\-20
- Manufacturer's number: MT\-001\-19
- Manufacturer's date: 2019\-03\-11
- NHTSA component: FUEL SYSTEM, GASOLINE; SEATS

## NHTSA's summary

Some customers may complain about a tapping or knocking noise coming from the rear seat after fuel fill. The concern will likely occur if the fuel tank is overfilled \(more fuel is added after the fuel pump nozzle shuts off automatically\) or filled up normally in high ambient temperatures and the fuel expands.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154487-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154487-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system, Seats

## Vehicles listed

- 2016 to 2019 MAZDA CX\-3

## Recalls for the same vehicles and component

- [2021696](/recalls/tc/2021696.md), 2021-11-12: Fuel System
- [21V875000](/recalls/nhtsa/21V875000.md), 2021-11-12: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

## Other bulletins for the same vehicles and component

- [SA\-023\-26](/bulletins/11032019.md), 2026-05-04, Service bulletin: FUEL/PROPULSION SYSTEM. This Service Alert supersedes the previously issued M\-Tip\(s\) listed below. The changes are noted in Red text. MT\-003/22 03/02/22 DESCRIPTION Some customers may complain about a tapping or knocking noise coming from the rear seat after fuel fill. The concern will likely occur if the fuel tank is overfilled \(more fuel is added after the fuel pump nozzle shuts off automatically\) or filled up normally in high ambient temperatures and the fuel expands. No repair is needed. Explain to the customer not to continue filling after nozzle shut off.
- [CSP12](/bulletins/11011345.md), 2024-12-04, Warranty extension: FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [CSP12 Repair](/bulletins/11011341.md), 2024-12-04, Warranty extension: ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [CSP12 Repair MX5](/bulletins/11011338.md), 2024-12-04, Warranty extension: FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [CSP12 Parts Warr](/bulletins/11011336.md), 2024-12-04, Warranty extension: ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [CSP12 FAQs](/bulletins/11011331.md), 2024-12-04, Warranty extension: FUEL/PROPULSION SYSTEM; ENGINE. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [CSP12 Dealer Letter](/bulletins/11011326.md), 2024-12-04, Warranty extension: ENGINE; FUEL/PROPULSION SYSTEM. CUSTOMER SERVICE PROGRAM CSP12 \- DENSO LOW\-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign. Repairs are not to be made unless there is a confirmed low\-pressure fuel pump failure within the coverage period. As of November 18, 2024 Repair Procedures and Parts and Warranty documents are available.
- [MT\-003/22](/bulletins/10209728.md), 2022-04-06, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE. Some customers may complain about a tapping or knocking noise coming from the rear seat after fuel fill. The concern will likely occur if the fuel tank is overfilled \(more fuel is added after the fuel pump nozzle shuts off automatically\) or filled up normally in high ambient temperatures and the fuel expands. No repair is needed. Explain to the customer not to continue filling after nozzle shut off. Refer customer to Owner's Manual Warning:
- [MT\-002\-21a](/bulletins/10202695.md), 2021-10-31, Service bulletin: FUEL SYSTEM, GASOLINE; FUEL SYSTEM, OTHER. Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85. E10: A blend of 10% ethanol and 90% gasoline. E85: A blend of 85% ethanol and 15% gasoline All Mazda vehicles can run on gasoline containing up to 10% ethanol \(E10\) but only some 1999\-2001 B3000 trucks can run on gasoline with more than 10% ethanol blended. E10 compatible vehicles: All Mazda vehicles. E85 compatible vehicles: 1999\-2001 B3000 Mazda trucks with the 8th VIN digit is V.
- [09\-065\-16](/bulletins/10186260.md), 2021-02-01, Service bulletin: SEATS; EQUIPMENT. Rear seat back \(RH\) difficult to ljock in its upright position. Some customers may complain that it is difficult to lock the rear seat back \(RH\) to the upright position. The right side seat back weight is lighter than the left side. The lighter right side requires more force to lock the seat back to the upright position.

JSON: [/v1/bulletins/10154487](/v1/bulletins/10154487)

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