Volvo VNL trucks are heavy-duty, long-haul trucks designed for towing products long distances. They need a rugged and intuitive transmission, and Volvo gave them the I-Shift option. Yet this has had a few problems over the years. Owners need to know these so they can get help when needed.
What problems have been reported with the Volvo I-Shift transmission?
The Volvo I-Shift transmission has had some problems, including:
- Violent vibrations from the transmission
- Transmission goes into neutral unexpectedly
- Loose driveshaft causing vibrations
This article will cover some of these issues and what needs to be done to fix them.
A Closer Look at the Volvo I-Shift Transmission
The I-Shift is an automated manual transmission. This means it works like a manual but with automatic functions. This allows it to constantly adjust to information about the vehicle’s speed, road grade, acceleration and more.
The I-Shift is unique because it has no clutch pedal. Instead, the driver controls it using a gearstick on the seat or buttons on the dashboard. The I-Shift was introduced in its VNL trucks in 2001 and buses in 2004, and it remains the transmission of choice even today.
While this technology is pretty slick, it does have some problems. Because it’s a unique transmission design, getting those problems fixed requires professional service.
Commonly Reported Volvo I-Shift Transmission Problems
Violent Vibrations Stemming from Transmission
NHTSA Complaint ID: 11182763
One owner reported a problem with the I-Shift in the 2018 Volvo VNL. While driving, the owner experienced violent vibrations at speeds between 57 and 65 mph. Replacing the driveshaft did not fix the problem.
For this particular concern, the manufacturer determined the vehicle was operating normally. The owner had no choice but to continue driving the truck in spite of the vibration.
Transmission Switching to Neutral
NHTSA Complaint ID: 11318091
In February of 2020, a driver of a 2019 Volvo VNL reported a problem with the transmission going into neutral when coasting downhill or letting off the accelerator. This meant the driver wasn’t following state regulations that require operating in gear at all times, except when stopping.
By not following state regulations, the driver was at risk for a citation. Getting the transmission repaired required a trip to the dealership.
Vibration from Loose Driveshaft
NHTSA Complaint ID: 11121647
One driver of a 2016 Volvo indicated a vibration when driving at both low and high speeds. That’s obviously uncomfortable when driving long distances. Several mechanics found that the driveshaft in the transmission was loose.
Transmission repairs are costly, but fixing the loose driveshaft is the only solution to this problem.
Without that fix, the driver’s forced to continue driving with the vibrations.
