Hard starting when warm after sitting for 10 minutes.

Scan for codes--see what is applicable

I would consider a transmission oil change to freshen up the oil . The hard braking may be that there is a rust build up on the rotors and that makes the pads grab for a few applications. May be a way to fix the gear problem is to start it and let it idle for say 10 minutes to allow everything to get some heat into it instead of starting and driving immediately

That seems pretty normal, the heater works by blowing excess heat from the engine coolant. So the coolant has to be warmed completely for the heat to work, you can get a heater that plugs into your cigarette lighter that will heat the vehicle instantly.

I had this same problem with my 2003 H2, my mechanic found that the fuel diaphragm was cracked and this was allowing my truck to flood. If it was a cold start, the extra fuel would evaporate and it would start fine. It actually got to the point where I would stall at a stop light or stop sign at idle. The part was is the neighborhood of $175.00 and about 1 hour of labor to install.

Lookfor a light on the dash that says SECURITY or ANTITHEFT. If you see this light, that is a sign of a failed or failing antitheft system, which will disable your vehicle. This link explains

http://vatspasslockpasskeysecurityhelp.yolasite.com/

try the thermostat first . it may be sticking!!

Your vehicle uses the coolant temp sensor and the intake air temp sensor to determine the engines temperature on a cold start. If one of them is dramatically different than the other it will flag a code.

Is the check engine light on?

When was the last time you had a tune-up? if recently what brand of plugs where used?

Have you noticed any hard start issues after a hot soak? A hot soak would be driving the car until fully warmed up, shutting of the engine for approximately 15 to 20 minutes, and then starting the engine again.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

replace crank sensor. It gets hot and stops working.

i had the same problem with my fiero the ignition module quits when it gets hot.

ck fuel pressure