Recall 17V705 affects 4 2017 Peterbilt 320 vehicles with undersized parking brake chambers. Repair is free at any franchised Peterbilt dealer.
Peterbilt is recalling 4 2017 320 vehicles equipped with Meritor disc brakes because the parking brake chamber is too small. An undersized parking brake can let the vehicle move unexpectedly, which increases the risk of a crash or injury to anyone in its path; Peterbilt dealers will complete the repair free of charge.
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What's wrong?
The parking brake chamber on the 2017 Peterbilt 320 is part of the air-brake parking brake system. When the truck is parked, the chamber applies force through the rear Meritor disc brake assembly so the truck stays held in place. On a heavy vocational truck, that holding force has to match the axle setup and vehicle weight rating.
On affected 320 trucks, the park brake chamber is too small for vehicles built with rear Meritor disc brakes, a liftable tag or pusher axle, and the higher weight rating identified by Peterbilt. The smaller chamber does not provide enough parking brake capability for that configuration. If the chamber does not apply enough holding force, the parked truck can move unexpectedly.
There is no warning sign before failure. The issue is the parking brake's holding capacity, so an owner or driver will not get a specific light, noise, or pedal change before the truck fails to stay parked.
Who's affected?
| 2017 Peterbilt 320 | Parking brake |
|---|---|
| Units affected | 4 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2017 Peterbilt 320 truck is on the list. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
An undersized parking brake can let the vehicle move unexpectedly after it is parked, increasing the risk of a crash or injury to anyone in its path. Set the brake carefully, avoid parking where movement would put people in danger, and schedule the recall repair soon. Repair is free at any franchised Peterbilt dealer.
What should I do?
- Check your VIN to confirm your 2017 Peterbilt 320 is included in this recall.
- Contact a franchised Peterbilt dealer to schedule the free rear axle park brake chamber replacement that corrects the undersized parking brake.
- Bring the recall notice if Peterbilt mailed one. If not, reference recall number 17V705 when you call.
- Avoid parking on a grade until the repair is complete, and secure the vehicle before parking.
- Call Peterbilt customer service at 1-940-591-4000 with questions and reference Peterbilt recall 1117E.
What happens at the repair
At the dealer, a Peterbilt technician replaces the rear axle park brake chambers. The new chambers are installed to correct the brake chamber sizing problem tied to unexpected vehicle movement when the parking brake is supposed to hold the truck. The recall repair is free, including parts and labor. Ask the service desk to reference Peterbilt recall 1117E when scheduling or checking the work order.
Timeline
| November 10, 2017 | NHTSA published the recall |
|---|---|
| December 8, 2017 | Dealer notification began |
| December 8, 2017 | Dealer notification ended |
| December 15, 2017 | Owner notification mailed |
| December 31, 2017 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 31, 2017 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 17V705?
Recall 17V705 covers 4 2017 Peterbilt 320 vehicles equipped with Meritor disc brakes. The rear axle park brake chambers are too small, which can let the vehicle move unexpectedly. Peterbilt dealers will replace the rear axle park brake chambers for free.
What should I do if my 2017 Peterbilt 320 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 17V705. If it is included, contact a franchised Peterbilt dealer to schedule replacement of the rear axle park brake chambers. Reference recall 17V705 and Peterbilt recall number 1117E when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Peterbilt dealers will replace the rear axle park brake chambers free of charge. Parts and labor are covered for vehicles included in recall 17V705.
What is the safety risk?
The safety risk is unexpected vehicle movement from an undersized parking brake. If the parking brake does not hold the vehicle as intended, the vehicle can move and increase the risk of a crash or injury to anyone in its path.
When were owners notified about this Peterbilt recall?
Owner notices for recall 17V705 began on December 15, 2017. If you own a 2017 Peterbilt 320 and never received a letter, check your VIN, then contact a franchised Peterbilt dealer or Peterbilt customer service at 1-940-591-4000.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V705000 |
|---|---|
| Peterbilt customer service | 1-940-591-4000 |
| NHTSA recall # | 17V705 |
| NHTSA recall # (full) | 17V705000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Owner Notification Letter (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 →