Suddenly got TPMS warning during ride

Faults and Technical chat for the Volvo XC40
michael123
Posts: 168
Joined: Fri Apr 05, 2019 6:14 am

Post by michael123 »

Hi

I have the car 4 months/3000km, and today first time got the pressure low warning.

I attach a picture, it looks bit strange to me, like XC40 "forgot" what's the pressure should be?

Is it possible to see somewhere current tyre pressure measurements of the in PSI?

0_IMG-20191215-WA0000.jpg

Perky
Posts: 66
Joined: Wed Oct 30, 2019 11:41 pm

Post by Perky »

Don't worry. All you need is a tyre pressure gauge and a pump. I always carry one in the car. Check all four and adjust accordingly but remember the car should be cold, only less than a mile driving before checking and topping up. Once done, follow the on-screen instructions and they will be fine, it will take a day in my experience to register the new pressures so just ignore the screen for a day.
T4 AWD Oct 2019
michael123
Posts: 168
Joined: Fri Apr 05, 2019 6:14 am

Post by michael123 »

Thanks!

I pumped 38 psi at the gas station, clicked on 'store pressure' and drove 15 min above 30km/h as Volvo suggested, but it was still calculating..

In the meantime I ordered portable 12V air pump from Amazon.

Could you please remind me how to keep the car engine ON while I open the driver's door?
Perky
Posts: 66
Joined: Wed Oct 30, 2019 11:41 pm

Post by Perky »

It may take several start ups before the calibration.

Just make sure the Amp on the car pump does not exceed 10 amps or you will blow a fuse.

Put the car in park with handbrake or neutral with handbrake. You can also press ignition once without pressing on the footbrake. You can use the power socket on the car.
T4 AWD Oct 2019
michael123
Posts: 168
Joined: Fri Apr 05, 2019 6:14 am

Post by michael123 »

Thanks!

If I use this air pump without working engine - won't it empty the battery?
Perky
Posts: 66
Joined: Wed Oct 30, 2019 11:41 pm

Post by Perky »

Not really. You are only using the pump to top up. Just don't use those large pumps "designed for 4X4", they draw a lot of current. The smaller Michelin are fine as their max current is 7.5 amps.
T4 AWD Oct 2019
michael123
Posts: 168
Joined: Fri Apr 05, 2019 6:14 am

Post by michael123 »

Oh, maybe it is quite heavy..
That's what I've ordered
https://www.amazon.com/gp/aw/d/B01L9WSTEG?ref=ppx_pt2_mob_b_prod_image
Perky
Posts: 66
Joined: Wed Oct 30, 2019 11:41 pm

Post by Perky »

It says 10-15 Amps. I would say that is too much. Have a fuse for the car handy and identify which fuse relates to the socket before using it in case the fuse blows out. If the fuse blows out, you should not use it again. The alternative is to run it from the battery directly using crocodile clips but I am personally not a fan of that.
T4 AWD Oct 2019
ChrisLF
Posts: 1346
Joined: Wed Apr 24, 2019 8:21 am
Location: Heart of England

Post by ChrisLF »

I prefer using a foot pump for my cars and motor cycles. I've got an electric one but find it noisy and gets hot. Keep meaning to take it down the tip!

Chris
2023 B4 Plus Dark FWD in Silver Dawn. Tinted Rear Windows. Spare Wheel & Tow Bar dealer fitted.

Gone - 2019 T4 R-Design FWD in Bursting Blue. Winter & Convenience Packs, Power Seat, Front Park Assist, Rear Camera, Spare Wheel & Tow Bar.
hdasmith
Posts: 392
Joined: Thu May 10, 2018 7:16 pm
Location: UK

Post by hdasmith »

Isn’t there already a pump in the boot, under the lifting floor, and under the next layer?
Inscription Pro | Pine Grey | Amber Leather | D3 FWD Manual
Ordered 11th May 2018
Delivered 6th November 2018
Post Reply