Volvo S90 owners have reported 3 forward collision avoidance related problems since 1996. Table 1 shows the 1 most common forward collision avoidance problems. The number one most common problem is related to the vehicle's warnings (3 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Warnings problems |
While driving on a rainy day my forward collision warning (fcw) system cam on signifying and impending collision via the "red warning vehicle crash" in the heads-up display. The car started to automatically break as well. There were no other vehicles in my land or close to me at the time. It was purely heavy rain. This is not the first occurrence of the fcw system engaging automatically. The same situation occurs during heavy rains or if water splashes from the other land in front of the car. The situation seems similar to the Hyundai recall just issued by nhsta https://static. Nhtsa. Gov/odi/rcl/2026/rclrpt-26v316-9486. Pdf luckily I have avoided being rear ended as no one has been close to me or they have been able to react to the sudden unexpected deceleration of my vehicle without my intervention or desire to do so. I ask NHTSA to broaden its investigation into other vehicles as this seems to be an issue across vehicle platforms and manufacturers.
Issue 1 – Volvo on call / vcm "service required" message: my vehicle has displayed a persistent "Volvo on call service required" error message in the driver information module (dim) for over one year. This is directly covered • Volvo technical journal tj 36916. 1. 0 (NHTSA mc-10253788), issued April 2024 • fault code: vcm-u105000 (vehicle communication module) • TSB explicitly covers 2018 S90 vehicles • the TSB states the required software packages are free of charge I contacted Volvo cars USA at [xxx] , who acknowledged the issue and arranged a complimentary diagnostic and fix with the manasquan dealer. But, the dealer would not perform the diagnostic at no charge, leaving me unable to confirm the fault code or proceed with the TSB-specified remedy without paying out of pocket. I have had this unresolved warning message for over one year now. The dealer told me that if I did not pay for the repair my car could lose power and stop suddenly. Issue 2 – park assist system false alerts: my park assist system sensors generate false proximity warnings for objects more than 20 feet away — far beyond the system's normal detection range. Cleaning the sensors did not resolve the issue. This is directly covered • Volvo technical journal tj 31558. 8. 0 (NHTSA 10161789), issued April 2019 • root cause: water ingress into park assist sensors and connectors due to a defective splice in the cable harness • Volvo introduced a harness splice correction in production starting June 2018 — meaning vehicles built before that correction may contain the defective harness • TSB covers 2016–2019 Volvo vehicles a malfunctioning park assist system is a direct safety concern — drivers rely on accurate proximity alerts when maneuvering, and persistent false alerts undermine confidence in the system and may cause drivers to disregard genuine warnings. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
On 8/22 while driving on a city road in extreme rainy conditions the vehicle in front of me drove through standing water, which created significant spray. As a result the city safety feature of my Volvo S90 engaged in an extreme fashion. Without any risk of an impending collision the city safety feature determined the water spray to be an obstacle and fully engaged the brakes (abs event) to avoid the impending collision including engaging seat-belt pre-tensioning. I was lucky as the drive behind me was paying attention and swerved to avoid rear ending my abruptly stopping vehicle without any intervention from me as the driver. I believe that the issue was caused due to the city safety system incorrectly detecting the water spray as an impeding crash. This seems to be a system calibration that could have been addressed during development. I wanted to notify NHTSA of this situation so you can be aware and monitor the impact of these driver assist features on overall road safety.