What size tires do I need for a 2006 Mitubishi Galant 4cly

Shane, Base 235 75R16, SLE, SLT, XL SLE, XL SLT P245 65R17,
Denali, XL Denali P245 60R18. Check the attached links,instruction and guides, Good luck
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GMC Envoy Tire Sizes
2006 GMC Envoy Tire Sizes
Tires for my Envoy Denali Recomendations

Lift vehicle using an auto jack. Support vehicle with jack stands and be sure car e-brake is set. Place a large tire block behind a tire of the vehicle to stop it from rolling if not on a level surface. grab the lug nut wrench and place on the tire's lug nuts and turn them counter clock wise to remove them. Remove them all to remove the wheel.

That generation of Mitsubishi had an issue with faulty electronics in the ECU. Try and source a new one or many folks refurbish them with a lifetime warranty. Hope that helps a little.

It depends how far you want to go. usually a tune up consists of an oil change, oil filter included, air filter change, and tire check and rotation. But a tune up could also include spark plug check and replacement/upgrade, spark plug wire replacement/upgrade, coolant flush, or even a transmission flush. It all depends on how far you want to go

check with code scanner for fault code/or bring to garage to run scan

It means you have a tire low on pressure, what does your owners manual say it means?

if the tires are the same size it should. if not , check on some adapter spacers

you have to go to the dealership and produce ownership of vehicle and they will give you a number to punch into the radio.

check the tire pressures in ALL tires not just the 4 on the ground but the sapre also. If the pressures are all correct and the light is still on you may need to take it to a tire store such as good year or firestone or eve you local dealr to have the tpms SYSTEM checked out, (TPMS Tire Pressure Monitoring System)

remove the radio look behind it, call the dealer, give them the serial#they will give u the code.