If you have air brakes in your truck, they're talking about the air pressure in your air brake system. You should have at least 90 psi before you take off.
Take your toe and pick UP on the brake pedal. The brake pedal may not be returning as it should.
set-back axle
A/P - Air Pressure .
The red brake warning light is an indication of low fluid, a loss of pressure, or the parking brake being set.The red brake light stays on when the parking brake is set, the fluid is low, or there us a loss of pressure.
Trouble code P0703 means:Torque converter/brake switch B circuit malfunction
Brake warning light (Canadian) in US there is supposed to be "BRAKE" overlaid on the international symbol. Looks like a brake drum with shoes.
Pressure is low for some reason-check your fluid.
low ac pressure
Normally it means the master cylinder has failed and needs replacing. It can also be a leak in the system or the master cylinder is extremely low of brake fluid.
BMEP stands for Brake Mean Effective Pressure. It is a measurement of the average pressure exerted on the piston during each engine cycle. It is used to evaluate the efficiency and performance of an engine on a dynamometer test.
If the light is in the center of what looks to be a tire with tread then it is the low tire pressure warning light. If the light is in the center of a symbol that looks like this (o) then that is the brake light warning. It can mean your parking brake is on or there is a problem with the brake system. Check the level of the brake fluid in the master cylinder resivoir.
If you mean the daytime running lights , just put your emergency / parking brake on when you are parked