2015 Cadillac XTS Owner Manual - Page 214

Driving and Operating 9-15 Starting and Operating New Vehicle Break-In Caution (Continued) breaking-in guideline every time you get new brake linings. Following break-in, engine speed and load can be gradually increased. Pressing the button cycles it through three modes: ACC/ACCESSORY, ON/RUN/START, and Stopping the Engine/OFF. The transmitter must be in the vehicle for the system to operate. If the pushbutton start is not working, the vehicle may be near a strong radio antenna signal causing interference to the Keyless Access system. See Remote Keyless Entry (RKE) System Operation on page 2-2. To shift out of P (Park), the vehicle must be in ON/RUN and the brake pedal must be applied. Stopping the Engine/OFF (No Indicator Lights): When the vehicle is stopped, press the ENGINE START/STOP button once to turn the engine off. If the vehicle is in P (Park), the ignition will turn off, and Retained Accessory Power (RAP) will remain active. See Retained Accessory Power (RAP) on page 9-19. { Caution The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: . Ignition Positions Do not drive at any one constant speed, fast or slow, for the first 805 km (500 mi). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle. Avoid making hard stops for the first 322 km (200 mi) or so. During this time the new brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this (Continued) . The vehicle has an electronic keyless ignition with pushbutton start.