{
  "owners": null,
  "title": "Proterra recall 20V664 (SC-20-154): 2018-2020 35 Foot and 40 Foot Catalyst Buses",
  "url": "https://carsmultiverse.com/recall/20v664/",
  "summary": "Recall 20V664 (Proterra): An unsecured steering gear box could cause the driver to lose the ability to steer the vehicle, increasing the risk of crash o...",
  "excerpt": "Proterra Catalyst, model years 2018 to 2020. Filed by Proterra Inc. and reported to NHTSA on 28 October 2020. 5 vehicles potentially affected. What the notice says Proterra Inc. (Proterra) is recalling certain 2018-2020 35 foot and 40 foot Catalyst buses. Lack of plexus adhesive between the torque plate and the vehicle chassis may cause the bolts securing the steering gear box to loosen. Is your vehicle included? Check with your VIN at NHTSA , or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on. CarsMultiverse / Recalls Proterra's own number for this recall: SC-20-154. That is the number on the owner letter and on the dealer paperwork. 20V664 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways. Answered from the register this site holds. NHTSA is the record to act on. What the authority says can happen if this is not fixed: “An unsecured steering gear box could cause the driver to lose the ability to steer the vehicle, increasing the risk of crash or injury.” 20V664 Proterra Inc. Steering:Gear Box (Other Than Rack And Pinion) 28 October 2020 2018-2020 PROTERRA CATALYST An unsecured steering gear box could cause the driver to lose the ability to steer the vehicle, increasing the risk of crash or injury. Proterra will notify owners, and dealers will inspect the stee",
  "register": {
    "authority": "NHTSA",
    "country": "United States",
    "index": "https://carsmultiverse.com/changed/"
  },
  "datePublished": "2026-08-23T21:27:43+00:00",
  "dateModified": "2026-09-16T18:27:51+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Proterra recall 20V664 (SC-20-154): 2018-2020 35 Foot and 40 Foot Catalyst Buses\", https://carsmultiverse.com/recall/20v664/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}