Hi, total newb here. Car just reached 30k, have to service soon. Wondering what kind of thing will void the official perodua warranty if I DIY the car?

Yea, read the warranty book from cover to cover. Under the topic what will nullify the warranty, section 5-d, they specifically said "any parts or accessories equipped, installed or fitted by any third party other than Perodua Service Center". Assuming that oil change and oil filter is considered as car part, I think it's safe to assume that it will void the warranty. And the FAQ on their website also said the same thing. What a bummer.

But they didn't say anything about DIY service job. The owner is not a third party.

Same. Can confirm that my passenger also complained of accidentally sat on the seat belt buckle many times especially at the left middle rear seat. Haven't give it any thought because I rarely sit on the rear passenger seat.

Probably they meant that it feels heavy on the acceleration. With 200kg more curb weight and way bigger tires, it does feel like driving an Alza but with full passenger on board.

what obd reader you use here?