I recently had one of my TPMS sensors replaced on my 2009 Aveo. The tech who did it failed to reset the warning light. When I inquired about it they wanted to charge me extra. I have checked all the tires and they have the proper pressure. Is there a way for me to reset the light?

some of the spares have a tps check them if no sensor then one of the sensors are failing

If the tires and wheels did not TPMS installed on them, the light will never go off. As far as TPMS is concerned it sees0 psi tire pressure. You can live with it or take and have TPMS items installed on your wheels.

If you have a dedicated tpms fuse pull it.

Could be low air,two pound less may light blinking.

Yes, you have to reset the TPMS in a dealer shop with a special TPMS diagnostic tool.

To reset the tire pressure monitoring system AKA TPMS, take the following steps:
1. Put your vehicle in park on a level surface
2. Turn the ignition to ON
3. Press and hold the TPMS button until the TPMS light blinks twice-the collaboration will begin
4. It would take about 30 minutes of driving at speeds of 50 to 100 KMH for the calibration to finish
5. Once, done, the light will go away

The TPMS signal is not idetified by your vehicle,when a predetermine amount of air is not present the sensor turns off. When this sensor turns off .Your vehicle TPMS monitor notice it and turns the light on.Some vehicle needs the TPMS monitor to be reset.Others need to be turned on. Still others just needs a set amount of air pressure to turn on and driven in your case the TPMS monitor should detect the sensor and the light will turn off

You either have a bad tire pressure sensor, in the tire or the shop doesn't know how to reset TPMS.

Find a tire or repair shop that is up to speed on todays technology

Check the tire pressure at the valve mounted to the wheel. There is a warning light on the instrument cluster to warn of low tire pressure. On a 2009 Maxima, if your warning light comes on check and adjust, if needed, the tire pressures at all 4 wheels. If the pressures were low the light will go out after a short distance. If the light fails to go out take the Maxima to your local Nissan dealer.

Try disconnecting the battery once the pressures are set and good. Leave it disconnected for 10 mins. This will reset the computer and should clear the fault if there are no other problems. These sensors are known to fail frequently so dont be surprised if the sensor/s need replaced.
Best wishes!