2025 Mack Terrapro (te): steering recall
A loose steering gearbox can result in a loss of steering, increasing the risk of a crash.
What was reported
Source: manufacturer filing, 49 CFR Part 573Reported to NHTSA Aug 6, 2026 by Mack Trucks, Inc.
What that means, in plain English
Source: WhichTrim's reading of the filing above — not NHTSA's wordingFasteners that 'may loosen' describe a potential future degradation of steering rather than an immediate, without-warning loss of control; the hedged language and dealer inspection/tightening remedy argue against critical, placing this in high as a steering defect that could lead to a crash.
Written for us by a language model from the manufacturer's filed text, which is quoted in full above. Where the two differ, the filing is the record and this is only our summary of it.
The fix, from the dealer bulletin
Source: NHTSA remedy instructions and dealer noticeRead from NHTSA’s copy of the manufacturer’s dealer documents (manufacturer campaign SC0497). The procedure itself is in the bulletin; a franchised dealer has the current copy on the manufacturer’s portal, and that copy governs. Working a lot or a fleet? Recall Watch carries this line on every VIN it checks: remedy status, hours, stop-sale.
Which vehicles are covered
Source: NHTSA campaign 26V509000Vehicles built Oct 2, 2024 to Dec 20, 2024 — a VIN outside that window is not part of this campaign even if the year, make and model match.
| Model year | On WhichTrim |
|---|---|
| 2025 Mack Terrapro (te) | — |
None of the vehicles this campaign names has a page on WhichTrim: the catalogue covers the cars, trucks and SUVs the EPA certifies from 2016 on, and these vehicles fall outside it — older model years, or motorhomes, trailers, buses, motorcycles and chassis cabs the EPA does not rate. The campaign record above is complete as filed, and whether one specific vehicle is included is settled by its VIN. Other campaigns on vehicles without a page here →
The federal paperwork
Source: nhtsa.govFiled documents
Check one specific vehicle
A recall applies to a build range, so year, make and model cannot settle it. Type the VIN and the WhichTrim recall report checks this campaign’s build window and engine against it.
Campaign 26V509000 · the manufacturer calls it SC0497
Own one, or run a fleet? Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, this one's expansions included. Or take a free one-line alert by model year.
A recall covers a build range. Only your VIN settles it.
Check it with the WhichTrim recall report now, or have us check it every night and email you when something new is filed.
Common questions
Source: NHTSA, 49 CFR Part 573Is SC0497 the same recall as 26V509000?
Yes. SC0497 is the number Mack Trucks, Inc uses for this campaign in its own paperwork and in the letter it sends owners. 26V509000 is the number NHTSA files it under. One recall, two references — dealers and service departments generally quote the manufacturer's.
Does this recall repair cost anything?
No. Federal law requires the manufacturer to remedy a safety defect or a compliance failure at no charge, for vehicles up to 15 years old measured from the date of first sale. A dealer that asks you to pay for a recall repair is in the wrong.
How do I know whether my vehicle is included?
By VIN, not by model year. This campaign covers vehicles built Oct 2, 2024 to Dec 20, 2024. The manufacturer files a build range with NHTSA and only vehicles inside it are covered, so two identical-looking cars from the same year can differ. NHTSA's own lookup checks a VIN against the manufacturer's list.
What if the repair is not available yet?
It happens, and often. Manufacturers must notify owners when a defect is found even if the parts or the software are not ready, then notify them a second time once the remedy exists. This campaign was filed without a repair available — Mack Trucks, Inc says so in the text above.
What did the manufacturer say was wrong?
The problem, risk and fix quoted on this page are the manufacturer's own words as filed with NHTSA under 49 CFR Part 573. WhichTrim does not paraphrase them.
Who started this recall?
NHTSA's record credits the manufacturer. A recall can begin with the manufacturer's own testing, with a defect investigation, or with a compliance test against a Federal Motor Vehicle Safety Standard.