This post contains affiliate links.
A light came on in your Honda’s dash. Before you worry, learn the simple color code Honda uses. Once you know it, you already understand most of the story:
| Color | What It Means | What To Do |
|---|---|---|
| Red | Serious — safety or damage | Pull over and stop |
| Amber / Yellow | Needs attention soon | Drive with care, get it checked |
| Green / Blue | A system is simply on | Nothing is wrong |
Easy rule: Red means stop. Amber means check it soon. Green and blue mean all is well.
Red Lights — Stop Driving
Oil Pressure Light (an oil can shape)
The single most urgent light on any Honda. It means the oil is not flowing with enough pressure — not just that the oil is low. Without pressure, the engine can wreck itself in under a minute.
What to do: Pull over and turn the engine off right away. Check the dipstick. Add oil if it is low and restart. If the light stays on with enough oil, do not restart — get a tow. A $60 tow is far cheaper than a $5,000 engine.
Charging / Battery Light (a battery shape)
The alternator has stopped charging. You are now running on the battery alone and have limited time before the car dies.
What to do: Turn off the AC, stereo, and heated seats. Head straight to a shop. Do not turn the engine off until you arrive — it probably will not restart.
Temperature Light (a thermometer shape)
The engine is overheating. Keep going and you risk warped metal and a blown gasket.
What to do: Pull over, shut it off, and let it cool at least 30 minutes. Do not open the radiator cap while hot — the steam can scald you. Then check the coolant level.
Brake Light (the word BRAKE)
This means the parking brake is on, the brake fluid is low, or there is a brake failure. First make sure the parking brake is fully released. If it is, check the fluid. If the pedal feels soft or sinks, do not drive.
Airbag (SRS) Light
The airbag system has a fault, and your airbags may not go off in a crash. On Hondas this is often a bad seat sensor, a rusty connector under a seat, or a part in the steering column. It needs a special airbag scan tool.
Power Steering (EPS) Light
On a Honda this looks like a steering wheel with a “!” mark. The power steering help has failed. You can still steer, but the wheel will feel very heavy, especially when parking. Sometimes disconnecting the battery for a moment resets it. If it stays on, get it checked.
Amber Lights — Check It Soon
Check Engine Light
- Steady: A code is stored. Not urgent, but do not ignore it. Get it scanned.
- Blinking: The engine is misfiring and hurting the catalytic converter right now. Pull over.
Most common Civic and Accord causes: a bad EVAP purge valve (codes P0455/P0442), oxygen sensor codes, and ignition coil failures that cause misfires (P0300–P0304).
Honda 1.5T tip: These small turbo engines can mix a little gas into the oil in cold weather. If your check engine light comes on and the oil on the dipstick looks high or smells like gas, mention that to your mechanic.
VSA Light (a triangle with squiggly lines)
This is Honda’s stability control (it keeps you from sliding), and it is the light people misread most.
- Flashing while driving: VSA is working right now because the road is slick. This is normal — it is doing its job.
- Solid, with the “VSA” text light: The system is off or has a fault. Check that you did not bump the VSA OFF button near the steering wheel.
- Solid, next to a check engine light: Usually one shared cause. Fix the engine code and the VSA light often clears too.
ABS Light
Your anti-lock brakes are off. Your normal brakes still work fully — you just lose the anti-lock help in a hard stop. Usually it is a wheel speed sensor, and it often turns on the VSA light at the same time.
Tire Pressure Light (TPMS)
Check all four tires with a gauge and fill to the number on the sticker inside the driver’s door (not the big number on the tire itself — that is the tire’s maximum, not your target).
Honda-only tip: Many newer Civics and Accords do not have pressure sensors in the wheels — they guess pressure from how fast the wheels spin. So after you add air or rotate your tires, you must reset the system in the touchscreen menu. If you skip this, the light keeps coming back even with perfect tires. This trips up a lot of owners.
The Maintenance Minder — Honda’s Code System
Honda does not just say “service due.” It gives you a letter and a number, and each one means something. Most owners never learn this — but it is easy.
Main Letters
| Code | Meaning |
|---|---|
| A | Change the engine oil |
| B | Change oil and filter, check the brakes and fluids |
Number Add-Ons
| Code | Meaning |
|---|---|
| 1 | Rotate the tires |
| 2 | Change the air filter and cabin filter; check the belt |
| 3 | Change the transmission fluid |
| 4 | Change the spark plugs (and timing belt if it has one) |
| 5 | Change the engine coolant |
| 6 | Change the rear differential fluid (AWD) |
| 7 | Change the brake fluid |
So “B1” means: oil and filter change, brake check, plus a tire rotation. “A12” means: oil change, tire rotation, and both air filters.
The screen also shows an oil life percent. At 15% a wrench icon appears as a heads-up. At 5% it turns amber. Aim to get service done between 15% and 5% — no need to rush the second you see the wrench. Reset it after service, or the codes will be wrong next time. You reset it in the settings menu on newer cars, or by holding the stalk button on older ones.
Honda Sensing Messages
If your Civic or Accord has Honda Sensing (the driver-help cameras and radar), you may see messages that are not real faults:
- “CMBS Cannot Operate” / “Collision Braking Problem” — usually a dirty radar sensor behind the front badge, or a camera at the top of the windshield blocked by dirt, ice, or a dashcam. Clean the badge and the windshield first.
- “Lane Keeping Assist Problem” — usually the same windshield camera. Heavy rain, snow, or bright low sun can turn it off for a while, which is normal.
- Blind Spot warnings — sensors in the rear bumper. Ice or a bumper repair can block them.
Before paying for a diagnosis on a Honda Sensing message, clean the sensors. It fixes a surprising number of them.
Green and Blue — Just Information
- Green ECON: Eco mode is on
- Green cruise indicators: Cruise control is set
- Blue high beam: Bright lights are on
- Green LKAS: Lane Keeping Assist is on and following the lines
Bottom Line
Red means stop. Amber means scan it. And on a Honda, remember two things that save the most needless worry: a VSA light next to a check engine light is usually one problem, not two, and your tire pressure system almost always needs a manual reset after you add air. A cheap OBD2 scanner in the glovebox turns “what’s wrong?” into a clear answer in about a minute — the best twenty dollars a Civic or Accord owner can spend.