TPMS Sensor Service in Toronto
The little tire-pressure light is the most ignored warning on the dash — and in Toronto it’s usually telling the truth. Salt corrodes the aluminum valve stems, sensors die, and a car with a permanently lit TPMS light has no early warning when a tire actually goes soft.
Sensors from $65 installed В· reset $30
What the Light Actually Means
Solid light
At least one tire is meaningfully low. Check pressures — most often it’s just cold weather, sometimes it’s a slow leak.
Flashing then solid
System fault, not pressure. Usually a dead sensor, a sensor that isn’t programmed to the car, or a receiver problem.
Light after a changeover
Second set of wheels without sensors, or sensors that were never relearned to the vehicle. Ten-minute fix in most cases.
What We Do
- Read all four sensors with the diagnostic tool — including battery health, not just “is it talking”
- Check stem corrosion and nut torque on each wheel
- Programme and relearn sensors to your vehicle
- Fit universal or OE sensors, your choice
- Rebuild kits (nut, grommet, cap) when the sensor itself is fine
- Set pressures to the door-jamb sticker and clear the light
Price
| Job | Price |
|---|---|
| Diagnosis, all four sensors | $30 |
| Reset / relearn only | $30 |
| Universal sensor, supplied and installed | $65 |
| OE sensor, supplied and installed | from $95 |
| Rebuild kit, per wheel | $15 |
| Full set of four programmed for a winter wheel set | $240 |
Plus 13% HST. Diagnosis fee is waived if we replace a sensor the same visit.
Why Sensors Die Faster Here
Salt and aluminum don’t mix
Road salt attacks the aluminum stem where it meets the steel nut. The corrosion seizes the joint, and the stem snaps the next time anyone touches it — usually at a changeover, usually at the worst moment.
We check before we break
Every changeover here includes a sensor check, so a corroded stem gets found on the bench and quoted, instead of found by snapping it off with your car in the air.
Questions
Why does the light come on every November?
Air contracts as it cools. A 10 °C drop takes roughly 1–2 psi out of every tire, so pressures set in September fall under the threshold on the first cold morning. Topping up usually clears it. More in our cold-weather pressure guide.
How long do sensors last?
The sealed battery is good for seven to ten years. In Toronto the stem usually corrodes before the battery dies.
Do I need sensors in my winter wheels too?
If the car has TPMS, a second set of wheels without sensors leaves the light on permanently. A second set of sensors programmed to the car fixes it — $240 for four.
Light On? Come In.
Diagnosis takes about fifteen minutes and tells you whether it’s pressure, a sensor or something worth worrying about.