Recall 19V034 affects 184 2015-2018 Proterra Catalyst buses for incorrect certification labels. Repair is free at any franchised Proterra dealer.
Proterra is recalling 184 2015-2018 Catalyst buses under recall 19V034 because the certification label can list the wrong front axle weight rating or tire pressure. Understated tire pressure can leave a tire underinflated, increasing the risk of tire failure and a crash; Proterra dealers will correct the label free of charge.
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What's wrong?
The certification label on a 2015-2018 Proterra Catalyst bus is the permanent plate that tells owners and technicians the bus's approved axle weight ratings and cold tire pressures. Those values guide how the bus is loaded, inspected, and serviced. When the label is correct, it gives the service shop the limits and tire settings assigned to that exact bus.
On affected Catalyst buses, the label was completed with incorrect gross front axle weight rating information, incorrect cold tire pressure information, or both. Proterra traced the problem to quality control errors in the label process. The bus itself is not being recalled for a broken axle or tire part; the defect is that the official label gives wrong service information.
A driver or fleet technician will not feel this problem from behind the wheel. There is no warning sign before failure. The issue is found by checking the certification label against the corrected vehicle information, then replacing it with a label that shows the right weight rating and tire pressure.
Who's affected?
Covers four Catalyst model years, all involving the vehicle label (placard or certification).
| 2017 Proterra Catalyst | vehicle label (placard or certification) |
|---|---|
| 2018 Proterra Catalyst | vehicle label (placard or certification) |
| 2016 Proterra Catalyst | vehicle label (placard or certification) |
| 2015 Proterra Catalyst | vehicle label (placard or certification) |
| Units affected | 184 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
An incorrect certification label can understate the proper tire pressure. That can leave a tire underinflated, raising the risk of tire failure and a crash. Check the tire information on the vehicle and schedule the label replacement soon. Repair is free at any franchised Proterra dealer.
What should I do?
- Check your VIN to confirm your 2015-2018 Proterra Catalyst is included in this recall.
- Contact a franchised Proterra dealer to schedule the free certification-label replacement that corrects axle-weight and tire-pressure information.
- Bring the recall notice if Proterra mailed one. If not, reference recall number 19V034 when you call.
- Avoid relying on the old certification label for tire pressure or front-axle weight until the corrected label is installed.
- Call Proterra customer service at 1-864-438-0000 with questions about the recall or repair scheduling.
What happens at the repair
At the dealer, a Proterra technician replaces the certification label with one that lists the correct gross front axle weight rating and tire pressure information. The replacement label and labor are free under the recall. Proterra has a general reimbursement plan on file for owners who paid for this label correction before the recall notice. Bring documentation of the prior repair or label replacement to the service desk so Proterra can review the claim under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| January 16, 2019 | NHTSA published the recall |
|---|---|
| February 13, 2019 | Interim owner notification (was planned for this date) |
| March 12, 2019 | Owner notification mailed |
Frequently asked questions
What is recall 19V034?
Recall 19V034 covers 184 2015-2018 Proterra Catalyst buses with certification labels that list incorrect gross front axle weight ratings or tire pressures. If tire pressure is understated, a tire can run underinflated, increasing the risk of tire failure and a crash.
What should I do if my 2015-2018 Proterra Catalyst is on this recall?
Check your VIN to confirm your specific bus is included in recall 19V034. If it is, contact a Proterra dealer or Proterra customer service at 1-864-438-0000 to arrange replacement certification labels with the correct axle rating and tire pressure information.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to complete the recall remedy at no cost. Proterra dealers will replace the incorrect certification labels with corrected labels for affected Catalyst buses free of charge.
What is the safety risk?
The safety risk is tied to incorrect tire pressure information on the certification label. If the listed pressure is too low, the tire can be operated underinflated. That raises the risk of tire failure, which increases crash risk.
When did Proterra start this recall?
Proterra began this recall on March 12, 2019. Because the remedy is available, affected owners can contact a Proterra dealer or Proterra customer service at 1-864-438-0000 to arrange the corrected certification label replacement.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/19V034000 |
|---|---|
| Proterra customer service | 1-864-438-0000 |
| NHTSA recall # | 19V034 |
| NHTSA recall # (full) | 19V034000 |
Source documents
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →