Daihatsu Tanto LA600S/LA610S — brake booster corrosion
| English | 日本語 |
Scope
- Vehicles: Tanto DBA-LA600S/LA610S in the 2019-04-11 notice. Other Daihatsu models have their own ranges.
- Engines/components: Water sealing at the cowl/dash-panel joint and the brake booster.
- Production window: LA600S: 2013-09-26 to 2016-10-04; LA610S: 2013-09-27 to 2016-10-04. Check the actual chassis range and status.
- Markets: Japan; do not generalize the notice to later Tanto generations.
The issue
Water reaching the booster can cause corrosion and, if it progresses to perforation, reduced brake assistance. Recall 4471 addresses both the water-sealing cause and the condition of the booster.
Symptoms an owner can detect
- A brake pedal requiring unusually high effort or a change in braking performance needs prompt professional assessment.
- Do not arrange repeated braking tests to confirm the defect. Visible appearance alone cannot establish booster condition or recall completion.
Severity
Critical. Reduced brake assistance can increase the distance needed to stop.
Frequency (honest assessment)
The cited manufacturer information does not establish a failure probability for this vehicle or a mileage-based failure rate. A campaign population is not a count of failed vehicles; do not describe every example as defective.
Fix and cost
- Repair: The notice calls for a revised water seal and booster inspection, followed by replacement or corrosion protection according to its condition. Have qualified brake-system technicians perform the work; a seal-only receipt does not establish that all required actions were completed.
- Typical cost: Japan: confirm individual eligibility and the current remedy terms with the dealer first. No verified general retail price is supplied. Do not promise that all associated repairs are free; obtain an itemized quote for work outside the remedy.
Buyer checklist
- Ask for the full campaign completion record and the booster inspection result.
- If brake feel is abnormal, have the workshop decide safe transport before any purchase test drive.
- Separate cosmetic rust elsewhere on the car from this specific brake-system assessment.
Example prompt for an evidence-based check:
2014 Japan-market Tanto LA600S: a seller has a water-seal repair receipt but no booster inspection result. What should be verified for recall 4471 before a test drive?
Sources
- Daihatsu: Move/Tanto/Wake/HiJet Caddie recall, 2019-04-11 (4471)
- MLIT: English summary of recall 4471
Sources checked: 2026-10-30. Recheck notices and schedules when using this entry. The buyer checklist is this project’s verification workflow, not a reproduction of a factory inspection procedure.