The heater-A/C control is back lighted by one or two small lamps [bulbs] mounted in a lamp-holder(s) inserted into the rear of the control assembly.
Normally, the holders insert into a hole, and are locked in place by turning 1/4 turn to the right [clockwise], and removed by turning 1/4 turn counterclockwise.
Depending on the amount of room behind the dash, and around the heater-A/C control assembly, you may be able to remove the holder [s] by reaching up behind the dash.
If there is not room for you to work, then you will have to remove the assembly from the dash panel to access the lamp-holder(s).
you can't replace the lights they are built in to the control head.you must replace the entire hvac control
Defective blower motor Resistor Pack. Replace it.
only when it stops working.
I believe the climate control panel should snap in without screws.
Replace shoes brake 2003 Chevy
its most likely your idle control sensor. if you replace it the truck should run fine.
do you need to remove dashboard in 2003 chevy impala to replace heater core
look in the manual
buy a knew one and take it to a shop and let them do it.
how to replace a heater core on a 2003 Nissan Altima 2.5
A Dodge Durango does not have a water control valve in the heater plumbing. The cabin temperature is controlled with airflow control doors.
how do you change a heater core on a 2003 ss Monte Carlo