My 2003 suzuki aerio is having intermittent starting, it usually always starts but i have to switch the key in the ignition 5 or more times. i have replaced the starter, put new cables to the battery and have the gear shift cable replaced but its still happening. Could it be a ignition relay, where might that be or would i need a new ignition

SOURCE: 2003 suzuki aerio clock light no longer works how to fix

Funny you should mention that, I’ve been working on the same problem with my 04 Aerio for 2 days. If you've checked the bulb and that didn’t fix it then it's probably 1 of the 5 little resistors on the circuit board. They’re really small and aren’t soldered very well. Pull the clock and pop the white ABS cover off the back, once you remove the clock from the dash you won’t even need any tools to pop the rear cover. Now plug the clock back in (make sure you get the plug back in the right way or you’ll short everything out) then turn your key on and GENTLY push on each resistor with your finger while watching to see if the light flashes on. If it does then that’s the resistor with the bad connection. I say GENTLY because I wasn’t and the lose resistor popped off on mine and no matter how many times I try soldering it back on I cant get a good enough connection to make the light work.
If you do find the lose resister, use a small tipped medium heat soldering iron and fine electrical solder to carefully solder the ends of the resistor with a little solder as possible. What ever you do don’t knock the little thing off or you probably never find it again, and you probably never get it to make a connection again. I’d start with resistor 430, it’s the nearest of the 2 on the side of the plug-in pins on the circuit board. Hope you have better luck then I did…..

SOURCE: Key for my Suzuki Aerio 2003

You don't need to buy a remote from the dealer, you can buy one from ebay or Amazon for about $30, and you can program it yourself. The dealer will charge you $100 to program your remote. (Just remember on the last step make sure you press both the lock and unlock button at the same time).

SOURCE: I need the owner manual suzuki aerio 2003

Check the eBay website. They usually have a lot of various owner manuals for sale on the site. I hope this helps!

SOURCE: removing front door panel on a 2003 suzuki aerio

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls

SOURCE: what type of oil does my 2003 suzuki aerio take?

You should be useing 5w30 oil in this car.