You completed the decompression stop.

The decompression stop depth and time flash.

Your partial pressure of oxygen (PO2) value is above the specified warning value.

Your PO2 value flashes yellow.

Your oxygen toxicity units are above the safe limit. During a dive, "%1" is replaced with the number of units accumulated.

The alert appears every two minutes, up to three times.

Your oxygen toxicity units (OTU) are at 250 units, and you are nearing the safe limit of 300 units.

None

You have 5 minutes of no decompression limit (NDL) time remaining.

You have 10 minutes of no decompression limit (NDL) time remaining.

You are within one stop interval (3 m or 9.8 ft.) of the decompression stop depth.

None

Your PO2 value is above the specified critical value.

Your PO2 value flashes red. The alert appears every 30 seconds, up to three times, until you ascend to a safe level.

Less than 20% battery power remains.

The alert appears when the dive computer is below 20% battery power.

You selected Not Now when prompted to switch to a higher-oxygen gas, or you ignored the prompt.

The gas does not change. You will be prompted again in two minutes.

Your central nervous system (CNS) oxygen toxicity is at 80% of the safe limit.

The alert appears during a dive and on the dive pre-check screen for your next dive.

Your CNS oxygen toxicity is too high. During a dive, "%1" is replaced with your current CNS percentage.

The alert appears every two minutes, up to three times.

You completed all decompression stops.

None

Your PO2 value is below 0.18 bar.

If you are within the first two minutes of your dive, your PO2 value flashes yellow. Otherwise, your PO2 value flashes red.

The alert appears every 30 seconds, up to three times, until you descend to a safe level or switch gases.

You are more than 0.6 m (2 ft.) above the decompression ceiling.

The current depth and stop depth flash red. If you remain above the decompression ceiling for more than three minutes, the decompression lockout feature goes into effect.

You are more than 2 m (8 ft.) above the safety stop ceiling.

The current depth and stop depth turn yellow.

In a CCR dive, your diluent's PO2 value is below 0.18 bar.

Your PO2 value flashes yellow.

The dive computer will automatically end and save the dive. During a dive, "%1" is replaced by the number of seconds.

None

The dive computer has invalid or missing depth sensor data before you start a dive activity.

Do not start a dive. Call Garmin^® Product Support.

The dive computer rebooted during the dive.

The dive computer simulates the dive for the time it was rebooting. Since other alerts may not have been triggered, evaluate your current depth and dive conditions.

Diver assistance is still active.

The alert appears every two minutes while diver assistance is still active.

You have exceeded your NDL time.

The dive computer begins providing decompression stop guidance.

The dive torch has been on for 5 minutes.

The alert appears every five minutes while the torch is still on.

Less than 10% battery power remains.

The alert appears when the dive computer is below 10% battery power.

The computer encountered an issue that it could not recover from.

Use a backup dive computer or dive plan and end your dive. Residual tissue loading was cleared. If the issue continues, call Garmin Product Support.

The dive computer has invalid or missing depth sensor data after you have started a dive activity.

Use a backup dive computer or dive plan and end your dive. Call Garmin Product Support.

You completed the safety stop.

None

You ascended above 6 m (20 ft.) without other decompression guidance.

The safety stop countdown timer begins, if configured.

You are ascending faster than 9.1 m/min. (30 ft./min.) for more than 5 seconds.

None

In a multi-gas dive, a gas with a higher oxygen content is now safe to breathe. During a dive, "%1" is replaced with the name of the gas.

You can switch gases now, or wait to switch gases later in the dive. A confirmation message for your choice appears.

The dive computer automatically switched to your specified CCR high setpoint.

None

The dive computer automatically switched to your specified CCR low setpoint.

None

The dive computer is in pool dive mode.

The dive computer will not save the current dive to the dive log.