How do you reset the AC on a 2016 Chevy Silverado?
A quick reboot of the climate-control system can clear minor glitches. The simplest method is a soft power cycle, or a more thorough power reset that refreshes the HVAC module by cycling power. Note that resetting the system won’t fix mechanical faults like refrigerant leaks or a faulty compressor.
This article explains what resetting the AC can and cannot do on a 2016 Silverado, provides step-by-step methods for soft and power resets, and outlines diagnostics to consider if cooling still isn’t working.
What resetting the AC does (and doesn’t) do
Resetting the HVAC controller can clear software glitches, restore normal operation of climate controls, and recalibrate actuators in some cases. It will not fix leaks, damaged components, or electrical faults that prevent the system from cooling.
Soft reset versus power reset
There are two common routes to rebooting the system: a quick soft reset that cycles power through the HVAC controls, and a more thorough power reset that reinitializes the control module by disconnecting the battery. The soft reset is safer and faster; the power reset is more effective for stubborn glitches but requires handling the battery and connections.
Soft reset: reboot the HVAC controller without tools
This method is designed to clear minor glitches in the climate controls without touching the battery or wiring.
- Park the truck with the engine off and remove the key.
- Wait at least 60 seconds to let the system power down.
- Start the engine and let it idle; set the climate control to Auto and choose a cool setting.
- Turn the A/C on and off a couple of times if your controls allow it, then run the system for several minutes.
- Check if the air responds normally and if cooling improves; if not, proceed to the power reset below.
If the AC cycles normally and begins cooling, you’re done. If issues persist, try the more thorough power reset described next.
Power reset: reinitialize the HVAC module by cycling power
When a soft reset doesn’t resolve the issue, a power reset can clear deeper memory or configuration glitches in the HVAC module. This method involves safely disconnecting the battery to reset electrical systems.
- Park the vehicle on a flat surface and engage the parking brake.
- With the engine off and keys out, locate the negative battery terminal.
- Disconnect the negative battery cable and wait 10–15 minutes to allow the system to discharge.
- Reconnect the negative battery cable and snug the connection.
- Start the engine, allow the HVAC system to reinitialize, and run the AC on max cooling for several minutes to recalibrate.
- If your Silverado has an anti-theft radio, you may need to re-enter the radio code after reconnecting the battery.
After a power reset, the climate control should behave normally. If issues persist, the problem may be mechanical or refrigerant-related and will likely require service.
When a reset doesn’t fix the problem: diagnosis and next steps
Resetting is not a substitute for repair. If cooling remains weak or non-existent after resets, consider these checks and next steps:
- Check refrigerant charge and look for leaks; a low refrigerant level will prevent cooling regardless of resets.
- Verify the AC compressor clutch engages when AC is turned on; a failed clutch means no cooling.
- Inspect fuses and wiring related to the HVAC system and control module for damage or loose connections.
- Test blend doors and actuators; stuck doors can result in incorrect temperatures or no cooling at all.
- Consider sensor issues (pressure, temperature, outside air) that can affect system operation.
If you’re not comfortable performing these checks, or if the system shows refrigerant leaks or a faulty compressor, seek professional service from a dealer or a qualified mechanic with GM experience.
Summary
How do you reset the AC system?
To reset an AC unit, turn off the power at the thermostat and circuit breaker, wait for at least one minute, and then restore power, starting with the breaker. If your unit has a physical reset button, locate it on the outdoor unit (often behind a panel) and press and hold it after cutting the power, then turn the power back on.
Resetting using the circuit breaker
This method is best for central air conditioning units and is the standard approach if no other reset button is present.
- Turn off the thermostat: Set your thermostat to the "off" position to stop the cooling cycle.
- Turn off the circuit breaker: Go to your home's breaker box and switch the breaker labeled for your AC unit to the "off" position.
- Wait for the system to reset: Give the unit about 5 minutes to completely power down.
- Restore power: Turn the circuit breaker back on.
- Turn the thermostat back on: Set your thermostat back to the "cool" setting to restart the unit.
Resetting using the reset button
This is an option for units that have a specific reset button, often found on the outdoor unit.
- Turn off the thermostat: Set your thermostat to "off".
- Turn off the circuit breaker: Go to the breaker box and switch the AC's breaker to "off". For safety, unplugging the unit directly from the outlet is another option for window units.
- Locate the reset button: This is often a small, red or black button located near the compressor on the outdoor unit, sometimes behind a removable service panel.
- Press and hold the button: Press and hold the reset button for at least 5 seconds.
- Restore power: Turn the circuit breaker back on or plug the unit back in.
- Turn the thermostat back on: Set the thermostat to "cool" to see if the unit is working properly.
If problems persist
If the reset doesn't resolve the issue, there may be a more serious problem. Check for any obvious issues like a tripped breaker or debris around the outdoor unit, but if the unit still malfunctions, contact a licensed HVAC professional for assistance.
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How to reset Chevy Silverado climate control?
To reset the AC on a Chevy Silverado, you can either remove and reinsert the AC compressor relay under the hood for about 10 seconds, or disconnect and reconnect the vehicle's battery for 10 minutes. For either method, turn the vehicle completely off first and then restart it to see if the system works.
Method 1: Resetting the AC compressor relay
- Turn the engine completely off and open the hood.
- Locate the fuse box, which is usually under the hood, and find the AC compressor relay using the diagram on the fuse box cover or in the owner's manual.
- Carefully pull the relay out of its socket. You can use pliers or your fingers.
- Wait for about 10 seconds.
- Inspect the relay for any signs of damage.
- Firmly push the relay back into its socket.
- Restart your truck and test the AC to see if it is working correctly.
This video demonstrates how to locate and reset the AC compressor relay: 59sMathias Does TechYouTube · Aug 21, 2025
Method 2: Resetting the battery
- Park the vehicle safely and turn the engine completely off.
- Open the hood and use a wrench to disconnect the negative battery terminal, followed by the positive terminal.
- Wait for about 10 minutes to allow any residual power to drain.
- Reconnect the battery, first reconnecting the positive terminal and then the negative terminal.
- Ensure both connections are secure.
- Start the truck and let it idle for a few minutes to let the computer recalibrate.
- Set the climate control to its lowest temperature and highest fan speed to help purge any trapped air.
- Check if the AC is blowing cold air consistently.
You can watch this video for a step-by-step guide on resetting the AC by disconnecting the battery: 57sNexologyYouTube · Aug 8, 2025
If the AC still does not work
- If the AC system does not improve after one of these resets, there may be another issue, such as a blown fuse, a refrigerant leak, or a problem with the control module.
- It is recommended to consult a certified technician for further diagnosis and repair.
How to reset the AC on a 2016 Chevy Silverado?
The quickest fix is to try resetting the AC compressor relay. Locate your fuse box (usually located on the driver's side) and find the AC compressor relay. Remove it with pliers or your fingers, inspect it for damage, count to 10, and then push it firmly back into place.
Why is my 2016 Chevy Silverado not blowing cold air?
Low Refrigerant Levels Are a Common Culprit
Refrigerant is the heart of your Chevy's air conditioning system. It's what turns hot air into the cold air you count on during Portland's summer heat. Without the right amount, your AC won't blow cold air-and you'll feel it fast.
