What does a red dashboard light mean?

Red dashboard lights indicate serious issues that require immediate attention. These include oil pressure, engine temperature, and brake system warnings. Pull over safely and address the issue before continuing to drive.

Can I drive with the check engine light on?

A steady check engine light is usually safe for short drives but should be diagnosed soon. A flashing check engine light indicates a serious problem — reduce speed and have the vehicle checked immediately.

How do I reset dashboard warning lights?

Some lights reset automatically after fixing the issue. Others require an OBD-II scanner to clear the code. Always diagnose and fix the underlying problem before attempting to reset any warning light.

What Does Electric Vehicle Ready Light (Green Car Icon) Mean?

Reviewed by automotive technicians · Last updated July 25, 2026

Quick Answer

Electric Vehicle Ready Light (Green Car Icon) = The EV Ready Light is a normal operational indicator — it means the high-voltage battery is connected, the drive inverter is active, and the vehicle is ready to move. This is the electric vehicle equivalent of an engine running indicator. When this light is ON, the car will respond to the accelerator pedal. When it is OFF, the vehicle is in Park or shut down.
Severity: Info · System: Tesla Model 3/Model Y (2021-2026)

INFO — Normal Operation

The EV Ready Light is a normal operational indicator — it means the high-voltage battery is connected, the drive inverter is active, and the vehicle is ready to move. This is the electric vehicle equivalent of an engine running indicator. When this light is ON, the car will respond to the accelerator pedal. When it is OFF, the vehicle is in Park or shut down.

What you see: A green car icon on the instrument panel or touchscreen, indicating the vehicle is powered on and ready to drive

What to Do Right Now

This is a normal indicator — no action needed. If the ready light does NOT appear when you expect the car to be drive-ready, check that the key fob is detected, the brake pedal is pressed, and the vehicle is in Drive mode. If the ready light fails to illuminate, the 12V battery or high-voltage contactor may have an issue.

Repair Cost Estimate

Option	Est. Cost	Notes
Do It Yourself	$0 (normal indicator)	If you have basic tools and mechanical knowledge
Mechanic / Dealer	$0 (normal indicator); $100-1,500 if the ready light fails to illuminate due to 12V battery or contactor failure	Includes diagnostic labor + parts

About This Data

Dashboard warning light information compiled from Tesla owner's manuals, OEM service documentation, SAE J2402 standards, and NHTSA guidance. This is an independent reference — not affiliated with or endorsed by Tesla. All brand names, model names, and dashboard symbols are trademarks of their respective vehicle manufacturers.

Published: 2026-07-25 · Repair costs are national averages and vary by location. Always get multiple quotes before authorizing repairs.

⚠️ Red dashboard lights demand immediate action — continued driving may cause engine damage or brake failure. When in doubt, pull over and consult a certified mechanic.

Related Warning Lights

Similar warning lights from the same make or related systems:

Honda CR-V: Orange Wrench / Maintenance Minder Green

This is NOT a check engine light. It is Honda's Maintenance Minder — a service reminder that oil cha

Toyota Camry: Flashing Check Engine Light Red

A FLASHING check engine light is an active engine misfire — unburned fuel is entering the catalytic

Honda Civic: Maintenance Minder Light / Wrench Icon Green

This is NOT a check engine light. It is Honda's Maintenance Minder system — a service reminder that

Honda Accord: ECON Mode Indicator Light Green

This is NOT a warning light. The ECON mode indicator shows that the driver has activated the ECON dr

Frequently Asked Questions

Can I drive when the Electric Vehicle Ready Light is on?

Yes — this is a normal operational indicator. The green car icon means the vehicle is ready to drive.

How much does it cost to fix if the EV Ready Light doesn't come on?

If the ready light fails to illuminate: 12V battery replacement ($100-250), high-voltage contactor repair ($500-1,500), or key fob battery ($5-15).

What does it mean if the EV Ready Light is flashing?

A flashing ready light may indicate a reduced power mode or a preconditioning state. Check the touchscreen for specific messages. Some EVs flash the ready light during extreme cold while the battery warms up.