Recall 17V338 affects 736 2013-2018 Freightliner Custom Chassis S2G trucks for misrouted airline hose and heater wire. Repair is free at any franchised Freightliner dealer.
Freightliner is recalling 736 2013-2018 Custom Chassis S2G trucks because an airline hose and engine block coolant heater wire were routed too close to the exhaust pipe. If those parts touch the exhaust, heat can melt the hose or wire, cause a short, and raise fire risk; Freightliner dealers will secure them free of charge.
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What's wrong?
The airline hose on a 2013-2018 Freightliner Custom Chassis S2G truck carries compressed air for chassis systems that depend on air pressure. The engine block coolant heater wire supplies power to the heater that warms engine coolant before startup in cold conditions. Both parts need enough clearance from hot exhaust plumbing and enough support to stay in place while the truck is driven.
On affected trucks, the airline hose and heater wire were routed and secured too close to the exhaust plumbing during production. Exhaust heat can soften or melt the air line and damage the heater wire insulation. Once that heat damage starts, the air plumbing no longer has the protection and spacing it needs around the engine.
There is no warning sign before failure. The issue is tied to how the hose and wire were positioned, so an owner should not rely on a dashboard light or drivability change to know whether this recall applies.
Who's affected?
Spans the 2013-2018 model years under two S2G name formats, all tied to the engine.
| 2015 Freightliner Custom Chassis S2G | Engine |
|---|---|
| 2016 Freightliner Custom Chassis S2G | Engine |
| 2018 Freightliner Custom Chassis S2G | Engine |
| 2013 Freightliner Custom Chassis S2G | Engine |
| 2017 Freightliner Custom Chass S2G | Engine |
| 2014 Freightliner Custom Chassis S2G | Engine |
| Units affected | 736 |
The year and model name narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
On included vehicles, the airline or wire can contact the exhaust pipe. Heat can melt the material and short the wiring. That raises the risk of a fire. No warning sign is listed for this recall, so schedule the inspection and routing correction soon and limit extra trips before the dealer checks it. Repair is free at any franchised Freightliner dealer.
What should I do?
- Check your VIN to confirm your 2013-2018 Freightliner Custom Chassis S2G or S2G truck is included in this recall.
- Contact a franchised Freightliner dealer to schedule the free inspection and routing repair that secures the airline hose and engine block heater wire away from the exhaust pipe.
- Bring the recall notice if Freightliner has mailed one. If not, reference recall number 17V338 when you call.
- Call Freightliner customer service at 1-800-547-0712 with questions about scheduling or dealer routing.
What happens at the repair
At the dealer, a Freightliner technician inspects the airline hose and engine block coolant heater cord routing. If the hose or cord is routed incorrectly or not secured, the technician relocates it and secures it so it stays clear of nearby parts. The recall repair is free, including inspection, correction, and labor. Repairs are handled by Freightliner authorized service facilities.
Timeline
| May 24, 2017 | NHTSA published the recall |
|---|---|
| July 22, 2017 | Dealer notification began |
| July 22, 2017 | Dealer notification ended |
| July 22, 2017 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| July 22, 2017 | Interim owner notification (was planned for this date) |
| September 29, 2017 | Owner notification mailed |
Frequently asked questions
What is recall 17V338?
Recall 17V338 covers 736 2013-2018 Freightliner Custom Chassis S2G trucks with routing concerns for an airline hose and engine block coolant heater wire. The hose and wire can contact the exhaust pipe, melt, short, and increase fire risk. Freightliner dealers inspect and secure the routing for free.
What should I do if my 2013-2018 Freightliner Custom Chassis S2G is on this recall?
Check your VIN to confirm your specific truck is included in recall 17V338. If it is, contact a franchised Freightliner dealer to schedule the routing inspection and correction. Reference recall number 17V338 or Freightliner recall FL-739 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Freightliner dealers inspect the airline hose and heater cord routing, correct it, and secure the parts for free when needed.
What is the safety risk?
The safety risk is fire. If the airline hose or engine block coolant heater wire contacts the exhaust pipe, heat can melt the hose or wire insulation and create an electrical short. The recall repair reroutes and secures those parts away from the exhaust.
When did owner notices go out for recall 17V338?
Freightliner mailed an interim owner notice on July 18, 2017, and the recall began on September 29, 2017. If you own one of these trucks and never received a letter, check your VIN and call a franchised Freightliner dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V338000 |
|---|---|
| Freightliner customer service | 1-800-547-0712 |
| NHTSA recall # | 17V338 |
| NHTSA recall # (full) | 17V338000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
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 →