Altec Aerial Device, model years 2015 to 2018. Filed by Altec Industries Inc. and reported to NHTSA on 25 August 2020. 17 vehicles potentially affected.
What the notice says Altec Industries Inc. is recalling certain 2015-2018 LR7, ALB, AC18, AC23, and AC38 vehicles built on an International N9/N10 chassis. During an HC Desorb cycle, the vehicle's idle will rapidly rise causing an increase in pump flow. The increased pump flow can result in the moving speed of the boom changing.
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.
Altec's own number for this recall: CSN 774. That is the number on the owner letter and on the dealer paperwork. 20V502 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 20V502 cover?
- Altec Aerial Device, model years 2015-2018.
- What is wrong with them?
- Altec Industries Inc. is recalling certain 2015-2018 LR7, ALB, AC18, AC23, and AC38 vehicles built on an International N9/N10 chassis. During an HC Desorb cycle, the vehicle's idle will rapidly rise causing an increase in pump flow.
- What can happen if it is not put right?
- The change in boom speed can result in unintended positioning of the boom, increasing the risk of injury.
- Is there a fix yet?
- Yes, and it is free. Altec will notify owners, and dealers install an update that will reprogram the low idle preset to 850 RPM, free of charge. The recall began October 16, 2020. Owners may contact Altec customer service at 1-877-462-5832. Altec's number for this recall is CSN 774.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Altec calls this recall CSN 774, which is the number on the owner letter and the dealer paperwork.
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: “The change in boom speed can result in unintended positioning of the boom, increasing the risk of injury.”
affected
in the notice
caught
| Campaign | 20V502 |
|---|---|
| Filed by | Altec Industries Inc. |
| System at fault | Engine And Engine Cooling:Exhaust System:Emission Control |
| Reported to NHTSA | 25 August 2020 |
| Model years | 2015-2018 |
| Vehicles named | ALTEC AERIAL DEVICE |
What the notice says today
The consequence
The change in boom speed can result in unintended positioning of the boom, increasing the risk of injury.
The remedy
Altec will notify owners, and dealers install an update that will reprogram the low idle preset to 850 RPM, free of charge. The recall began October 16, 2020. Owners may contact Altec customer service at 1-877-462-5832. Altec's number for this recall is CSN 774.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 20V502, wording as read on 16 September 2026. https://carsmultiverse.com/recall/20v502/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Altec notices we hold
- 26V386: 2014-2026 AT Series Aerial Device
- 26V247: 2025-2026 Digger Derrick and 2025-2026 Aerial Device
- 18V873: 2017-2018 Digger Derrick, Aerial Devices, and Service Body
- 12V483: model year 2011-2012
- 12V456: model year 2002-2009 AH75/85/100 and HL125 aerial device
- 12V423: model year 2011-2012 Digger Derrick
- 12V411: model year 2008-2009 Aerial Device
- 12V390: model year 2012 Aerial Device
All 9 Altec campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 20V502 on 23 August 2026, they were:
- Defect summary
2546b58e - Consequence
ae02ebc8 - Remedy
9e510759
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 20V502 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Altec Aerial Device, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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