The 2009 Nissan Murano was recently recalled because of a fault with the braking system that could cause an unusually long pedal traveling issue.
In December of 2018, documents were filed with the NHTSA, which were recently released this past week. The report stated that the ABS hydraulic control unit in the Murano could interact with the brake fluid, which contains corrosion-prevention additives. This could cause a reaction to occur within the braking system, and the hydraulic control valves might not close properly as a result.
Which Models Are Affected?
Primarily, the 2009 Murano is the only model affected by the issue, but that includes over 86,000 vehicles. If the valves do not close because of a reaction with the brake fluid, the driver could experience pedal travel that is longer than average. Primarily, the preventative zinc coating added to the unit could react with brake fluid and create a jellied substance. While not necessarily problematic at first, the gel could harden over time and cause the springs to close the valve and keep it in the closed position to prevent it from opening. Therefore, it could take the driver longer to brake and come to a complete stop.
If the driver is unaware of the issue, it could cause them to crash into another vehicle because they did not give themselves enough time to stop completely.
When Nissan filed the documents, it said that the issue is only likely to occur when the ABS is engaged during normal driving.
What Can Be Done?
The remedy to the situation is to have a Nissan dealer flush the braking system using a DOT 4 brake fluid. Afterward, the hydraulic control unit must be tested to determine if the valves are sticking. If they do stick, the unit can be replaced without charge. Nissan started the process of notifying owners on Feb. 4.