Brakes do not function suddenly called brake dysfunction, where this problem can lead to a driving accident. Of course, in a crash can injure people such as drivers, passengers, and people who are around the incident. The investigation will be carried out on the causes of brake failure such as overheat that occurs in the brake components due to friction between brake elements because it holds the load and speed of the vehicle. This paper will present the temperature between brakes, which is a brake performance indicator. Variation of passengers and their estimated position affect the brake load or brake temperature. The research objective is to calculate the maximum temperature that occurs in the front and rear brakes. The second is to calculate the temperature difference between the front and rear brakes. If the difference between the front and rear temperatures exceeds the limit, it will be used as an indicator to show the brakes that are proper for service. In general, the method of this research is the literature review of the brake system and simulation of brake temperature. The calculation approach is carried out on a straight-moving vehicle. Based on the calculation results, the maximum brake temperature on the front wheel is 201 °C, the rear brake is 188 °C, the maximum difference between the front and rear brake temperatures is 49 °C. This data will be used in the development of brake temperature detection sensors which ultimately reduce the risk of driving accidents.