Chevrolet Silverado EV App Not Connecting, Charging Schedule Missing, or Remote Features Not Working: Full Fix Guide

The myChevrolet app is how you control your Silverado EV's charging schedule, check range, lock/unlock remotely, and monitor battery status. When it stops working, it's almost always a pairing, account, or network issue — not a hardware failure. Here are the most-asked questions, answered with specific steps.

Q1: myChevrolet app says "Unable to connect to vehicle" even though my Silverado EV is nearby. How do I fix it?

This error means the app can't reach your vehicle's onboard cellular module (OnStar). It's not a Bluetooth issue — myChevrolet communicates through OnStar's cellular network, not your phone's Bluetooth.

Step 1: Confirm OnStar is active on your account

1. Open the myChevrolet app → tap the menu (three lines) → Account → Connected Services.
2. Confirm your OnStar subscription shows as "Active." If it shows "Expired" or "Inactive," the remote features won't work regardless of app settings.
3. To reactivate: call 1-888-4ONSTAR (1-888-466-7827) or go to onstar.com → Sign In → My Account → Manage Plan.

Step 2: Refresh the vehicle connection

1. In the myChevrolet app: tap your vehicle name → tap the refresh icon (circular arrow) in the top right corner.
2. Wait 60 seconds — OnStar's cellular ping to the vehicle can take up to 90 seconds in areas with weak cellular coverage.
3. If still not connecting: go to your vehicle → start it (or press the power button to wake the 12V system) → wait 2 minutes → try the app again. The vehicle's OnStar module sometimes needs the 12V system active to respond.

Q2: My Silverado EV charging schedule isn't saving or keeps resetting. What's wrong?

Charging schedule issues on the Silverado EV almost always come from one of three causes:

Cause 1: Location-based charging not set up

The Silverado EV uses a home location to determine when to apply your charging schedule. If your home location isn't set, the schedule won't apply.

1. Open myChevrolet → tap your vehicle → Charging → Charging Preferences → Home Charging Location.
2. If no location is set or it shows a wrong address: tap Edit → set your home address → Save.
3. The schedule only applies when the vehicle detects it's at this location based on GPS.

Cause 2: Schedule set in app but not synced to vehicle

1. After setting the schedule in the app: tap Send to Vehicle (some app versions require this explicitly).
2. Confirm the schedule shows a green checkmark or "Synced" status in the app.
3. If no sync confirmation appears: go to the vehicle's infotainment system → Energy → Charging → Charging Schedule and verify the schedule appears there. If it doesn't, the sync failed — repeat from the app with the vehicle powered on.

Cause 3: Utility rate plan override

If you enrolled in a utility off-peak charging program, the utility's rate plan schedule can override your personal charging schedule. Check: myChevrolet → Charging → Energy Assist → Utility Rate Plan — if a utility plan is active, your custom schedule won't apply during plan hours.

Q3: Remote start and lock/unlock stopped working on the myChevrolet app. The features were working before — what changed?

Fix 1: Re-authenticate the app

1. In myChevrolet: tap your profile icon → Sign Out.
2. Force-close the app completely (swipe away from Recent Apps).
3. Reopen and sign back in — this refreshes your OnStar authentication token, which expires after extended inactivity.

Fix 2: Check which connected services plan you have

Remote start and remote lock/unlock require an OnStar Connected Services plan at the "Essentials" tier or higher. The basic "Emergency" plan does not include remote features.

1. Go to onstar.com → My Account → My Plans.
2. Confirm you have "Remote Access," "Essentials," "Premium," or a similar tier that lists remote features.
3. If your plan expired: the features disappear from the app without any error message — they simply stop responding.

Q4: myChevrolet app shows the wrong battery percentage or range estimate. How do I get accurate data?

1. The app's battery display is pulled from the last time the vehicle's OnStar module synced — it's not a live reading. Pull down to refresh on the vehicle status screen to request a current sync.
2. If the range estimate looks too low: the Silverado EV's range display adjusts based on recent driving patterns (highway vs. city, HVAC usage, temperature). After a full charge following mostly highway driving, the range estimate will be lower than the EPA-rated figure. This is normal — it's not a malfunction.
3. To see the most accurate charge level: check the infotainment display inside the vehicle, which updates in real time vs. the app's periodic syncs.

Q5: myChevrolet app crashes or won't open on my phone. How do I fix it without losing my vehicle settings?

iPhone fix:

1. Go to Settings → General → iPhone Storage → myChevrolet → Offload App.
2. Then tap Reinstall App. Offloading keeps your login credentials while reinstalling the app binary — faster than a full delete/reinstall.
3. If Offload doesn't work: delete the app fully → reinstall from the App Store. Your vehicle pairing and account data are stored on GM's servers — you won't lose settings.

Android fix:

1. Go to Settings → Apps → myChevrolet → Storage → Clear Cache.
2. Reopen the app. If it still crashes: tap Clear Data (this logs you out) → reopen → sign back in.
3. Confirm Android hasn't restricted the app's background activity: Settings → Battery → Battery Optimization → myChevrolet → Don't optimize. Background restrictions prevent the app from maintaining its OnStar connection.

Q6: I got a new phone and can't re-pair myChevrolet to my Silverado EV. What's the process?

1. Install myChevrolet on your new phone from the App Store or Google Play.
2. Sign in with your existing GM account email and password — do not create a new account. Your vehicle is linked to your GM account, not to a specific phone.
3. After signing in: tap Add Vehicle → Enter VIN or select from your account's vehicle list.
4. If your VIN isn't appearing: go to my.chevrolet.com on a browser → confirm the vehicle is listed under your account → try the app again after confirming.
5. If you can't remember your GM account password: reset at my.gm.com/app/reset-password — use the email address you registered with when you bought the vehicle.

Bottom Line

Most myChevrolet app problems with the Silverado EV fall into three categories: OnStar subscription lapsed (remote features silently stop working — check onstar.com), home location not set for the charging schedule (schedule doesn't apply without it), or an expired authentication token (sign out and back in). The charging schedule is the most-reported issue — confirm "Send to Vehicle" completed and check the infotainment display inside the vehicle to verify the schedule actually synced. App crashes are almost always fixed by clearing the cache on Android or offloading/reinstalling on iPhone.

Getting a specific error code in the myChevrolet app? Drop your phone model and the exact error in the comments.