It's quite common on some MGs @tonytan, tyre pressures go down a bit when it's colder, and this can sometimes take the pressure just under where it should be, but an extra 1 to 1.5 psi in all your tyres will probably cure it.I have a new MG4 ZS. I keep getting rear tyres low pressure warning. Is it common?
 
 I have a new MG ZS. I keep getting rear tyres low pressure warning. Is it common?
 . Take and post a photo of your screen with tyre pressure readings please.
. Take and post a photo of your screen with tyre pressure readings please.Maybe best to have your dealer check it out. Record a video for them. It will help.A month old MG4 Trophy. Kept receiving low tyre pressure warning for both rear tyres. Pump up all 4 tyres to recommended pressure but still receive rear tyre low pressure warning event when pressure has dropped by just 1-2 bars. At times, drop is <1 bar.