Because the service brake may not stop you
							                                
                                        
                                    
							                        
                    
                            Because it will cause the air pressure to rise
							                                
                                        
                                    
							                        
                    
                            Because the vehicle will suddenly roll backwards
							                                
                                        
                                    
							                        
                    
                            Because it will make the warning light go out
							                                
                                        
                                    
							                        
                     
	 
	