The TL has a Maintenance Minder system that automatically monitors the vehicle's unique operating condition to indicate to the driver when maintenance is required. Maintenance alerts are presented when the ignition is first turned on, not while driving (to prevent driver distraction). The system monitors engine operating conditions such as fluid temperatures and engine speed to determine the proper service intervals. The Multi-Info Display (MID) located below the fuel and engine temperature gauges in the instrument cluster indicates the remaining percentage of engine oil life, and then shows service is due with a "wrench" icon. A percentage-based countdown to the next service is displayed when the car is within 15 percent of the end of the service interval. A letter and number code is displayed to indicate the specific type of service that is required. If the service is missed, the MID indicates past-due mileage to express the urgency of the required service to the driver.

The system is designed to eliminate unnecessary maintenance procedures, environmental impact and expenses, while ensuring that important service issues are addressed. In some cases, oil change intervals can extend to a maximum of 10,000 miles, which could spare the owner considerable money and inconvenience over the life of the car. The owner-resettable system monitors all normal service parts and systems, including oil, oil filter, tire rotation, air-cleaner, automatic transmission fluid, spark plugs, timing belt, coolant, brake pads and more.

.."the RL bases service needs on how the vehicle is driven - not just how long. It takes into account factors like weather extremes, stop-and-start traffic and frequent short trips in determining required service. This system helps group anticipated services to help avoid multiple trips to your dealer's service department."