2009 Chrysler Aspen Owner Manual - Page 407

MAINTAINING YOUR VEHICLE 405 • Do not change the thermostat for Summer or Winter operation. If replacement is ever necessary, install ONLY the correct type thermostat. Other designs may result in unsatisfactory coolant performance, poor gas mileage, and increased emissions. Brake System Brake Master Cylinder The fluid level in the master cylinder should be checked whenever the vehicle is serviced, or immediately if the brake system warning light is on. If necessary, add fluid to bring level to the full mark on the side of the reservoir of the brake master cylinder. Be sure to clean the top of the master cylinder area before removing the cap. With disc brakes, fluid level can be expected to fall as the brake pads wear. Brake fluid level should be checked when pads are replaced. If the brake fluid level is abnormally low, check system for leaks. For correct fluid type, refer to "Brake Master Cylinder" under "Fluids, Lubricants and Genuine Parts" in this section. WARNING! • Use of brake fluid that may have a lower initial boiling point, or is unidentified as to specifications may result in sudden brake failure during hard prolonged braking. You could have an accident. • Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the brake fluid catching on fire. Use only brake fluid that has been in a tightly closed container to avoid contamination from foreign matter or moisture. 7