The most common cause for brake lights to be out on a 2001 Mustang GT is a blown bulb. There are some instances where there is faulty wiring.
2001 mustang gt ,ecu where is located?
it is a self ajustment each time you put hand brake it is done
The 2001 Ford Mustang GT was rated at 260 horsepower
a 2005 mustang GT . You are talking about ford Shelby right?
DOT 3 brake fluid
1964 1/2 Shleby mustang 1965 Mustang GT 1966 Mustang GT 1967 Mustang GT 1968 Mustang GT/CS 1969 Mustang Mach 1 1970 Mustang Mach 1 1971 Boss Mustang 1972 Mustang Mach 1 1973 Mustang Mach 1 1979 Mustang 1982 Mustang GT 1983 Mustang GT 1984 Mustang GT 1985 Mustang GT 1986 Mustang GT 1987 Mustang GT 1988 Mustang GT 1989 Mustang LX 1990 Mustang GT 1991 Mustang GT 1992 Mustang GT convertible 1993 Mustang GT/Saleen(possible) 1993 Mustang Cobra 1994 Mustang Cobra/GT 1995 Mustang GT 1996 Mustang Cobra 1997 Mustang Cobra 1999 Mustang Cobra 2001 Mustang GT/Cobra 2002 Saleen Mustang S-281-E/Mustang GT 2003 Mustang Cobra 2004 Mustang GT 2005 Mustang GT 2006 Mustang GT 2007 Mustang GT 2008 Mustang GT P.S. Shelby used to be the original mustang owner in the 1960s but in later years was bought out by Ford -Doug
stock
were is the computer in a 2001 ford mustang with 3.8 liter engine
Check to see if you have a blown fuse. This is often the case. Also you may try pulling the rear lights out and inspecting them for any damage or loose wiring.
DOT 3 brake fluid
Ludicrous Speed
260 horsepower