Patent ID: 8794364

Claim:
A vehicle comprising: a body component; a rechargeable energy storage system (RESS); an electric traction motor that is electrically connected to the RESS, and that is configured to provide an output torque for propelling the vehicle using electrical energy from the RESS; a coolant reservoir configured to retain a fluid therein; wherein the coolant reservoir includes a fill neck having threads; wherein the coolant reservoir is in fluid communication with the RESS; a cap threadingly engageable with the fill neck of the coolant reservoir, wherein the cap includes: an annular barrel portion axially disposable in the fill neck of the coolant reservoir; an annular engagement portion radially surrounding the annular barrel portion; wherein the annular engagement portion presents engagement threads threadingly engageable with the threads of the fill neck; an annular cover portion radially surrounding the annular engagement portion; wherein the annular cover portion is configured to rotate in a first rotational direction and cause rotation of the engagement portion in the first rotational direction such that the engagement threads threadingly engage with the threads; wherein the annular cover portion is configured to rotate relative to the annular engagement portion in a second rotational direction to cause rotation of the engagement portion in the second rotational direction such that the engagement threads remain threadingly engaged with the threads when a release mechanism is detached from the cap; and wherein the annular cover portion is configured to rotate in the second rotational direction and cause rotation of the engagement portion in the second rotational direction such that the engagement threads threadingly disengage from the threads in response to attachment of the release mechanism to the locking cap.