Honda Vezel RU3 warning lights: what each one means
19 warning lights from Honda's own owner's manual, grouped by how urgently the manufacturer says to act, with the printed page or original web section for each so you can check the original.
Japan-market Vezel Hybrid RU3 (front-wheel drive) as covered by the September 2018 manual edition. The AWD-system light in the same manual applies to the four-wheel-drive Vezel Hybrid and is omitted here. Lights marked equipment-dependent are fitted only on some grades.
A warning light is the car reporting a condition, not a diagnosis of a specific part. If braking, steering or engine behaviour changes, stop where it is safe. If you are unsure, follow the manual and contact a dealer. This page does not replace a professional inspection.
The manufacturer says to stop somewhere safe straight away, or to stop if specific symptoms occur.
Brake warning lightStop safely now
Manual name: ブレーキ警告灯 · red · printed p.66, 374
When it lights
Lights for a few seconds when the power mode is switched ON, then goes out.
Low brake fluid, or a fault in the brake system (including brake-force distribution).
What the manual says to do
If it lights while driving, press the brake pedal gently to check pedal resistance and check the brake fluid level.
If the pedal has no resistance, stop in a safe place immediately, shifting down if needed.
With the ABS light also on, the car may be unstable under hard braking: avoid high speed and hard braking.
With the orange brake-system light also on, stop in a safe place immediately.
In every case Honda says to have it repaired by a dealer immediately.
Low oil pressure warning lightStop safely now
Manual name: 油圧警告灯 · red · printed p.68, 372
When it lights
On at power ON, out once the power system starts.
Oil pressure lubricating the engine has dropped while the engine runs.
What the manual says to do
Stop immediately in a safe, level place and switch on the hazard lights.
Stop the power system and wait about 3 minutes, then check the engine oil level and top up if needed.
Restart: if the light goes out, continue; if it is not out within 10 seconds, stop the system and have it repaired by a dealer immediately.
Running the engine with low oil pressure can damage it.
High coolant temperature warning lightStop safely now
Manual name: 高水温警告灯 · red (blue when cold) · printed p.73, 370–371
When it lights
Lights briefly at power ON.
Flashes as coolant temperature rises and stays on if it rises further.
Shows blue when the coolant is still cold.
What the manual says to do
Flashing while driving: drive slowly.
On while driving: stop in a safe place immediately, apply the parking brake, switch off accessories and turn on the hazard lights.
If no steam is visible, open the bonnet with the system running; if steam is visible, stop the system and wait until it stops before opening the bonnet. Never remove the radiator cap while hot.
Once the fan has run and the light is out, stop the system, let the engine cool and check coolant level and hoses; if the light stays on after restarting, have it repaired by a dealer.
Transmission warning (shift-position indicator)Stop safely now
Do not use the parking brake (it may not release again) and have the car inspected by a dealer immediately.
If the parking-brake indicator also stays on or keeps flashing, stop in a safe place and contact a dealer; press the parking switch so the car cannot move.
A flashing parking-brake indicator alongside this light can mean the parking brake is not applied.
PGM-FI (check engine) warning lightHave it inspected promptly
Manual name: PGM-FI 警告灯 · printed p.68, 373
When it lights
On at power ON, out once the power system starts (or after several tens of seconds if it is not started).
On: a fault in the engine emission-control system.
Flashing: a cylinder misfire has been detected.
What the manual says to do
On: avoid high-speed driving and have it inspected by a dealer immediately.
Flashing: stop somewhere safe away from combustible material such as dry grass and leave the engine off for at least 10 minutes to cool.
If it flashes again after restarting, drive at 50 km/h or less to the nearest Honda dealer.
12V battery charging warning lightHave it inspected promptly
Manual name: 12V バッテリー充電警告灯 · printed p.68, 372
When it lights
On at power ON, out once the power system starts.
The 12V battery is not being charged.
What the manual says to do
Reduce electrical load by switching off the air conditioning, rear defroster and similar, and have it repaired by a dealer immediately.
Do not switch the power system off for a temporary stop: restarting uses the 12V battery and may not be possible.
Below about −30 °C the light may come on at start-up and go out as the high-voltage battery warms.
Power system warning lightHave it inspected promptly
Manual name: パワーシステム警告灯 · printed p.73
When it lights
Lights for a few seconds at power ON.
A fault in the hybrid power system.
What the manual says to do
If it lights while driving, have the car inspected by a Honda dealer immediately.
Electric power steering (EPS) warning lightHave it inspected promptly
If it stays on while driving, have it inspected by a dealer immediately; Honda states normal braking performance is maintained.
Airbag system warning lightHave it inspected promptly
Manual name: エアバッグシステム警告灯 · printed p.71
When it lights
Lights for a few seconds at power ON.
A fault in the airbag or seat-belt pretensioner system.
What the manual says to do
If it stays on, or never lights at power ON, have it inspected by a dealer immediately.
Honda smart key system warning lightHave it inspected promptly
Manual name: Honda スマートキーシステム警告灯 · printed p.72
When it lights
Lights for a few seconds at power ON.
A fault in the smart key system.
What the manual says to do
Have it inspected by a dealer immediately if it lights while driving, stays on after start-up, or lights for a few seconds with the power mode OFF or when switching it OFF.
Adaptive cruise control (ACC) warning lightHave it inspected promptly
Manual name: ACC（アダプティブクルーズコントロール）警告灯 · orange · printed p.75 · fitted on some grades only
When it lights
Lights for a few seconds at power ON.
Orange: a fault in the ACC system.
What the manual says to do
If it lights while driving, have it inspected by a dealer immediately.
Lane keeping assist (LKAS) warning lightHave it inspected promptly
Manual name: LKAS（車線維持支援システム）警告灯 · orange · printed p.75 · fitted on some grades only
When it lights
Lights for a few seconds at power ON.
Orange: a fault in LKAS.
What the manual says to do
If it stays on, have it inspected by a dealer immediately.
Check and correct
Often caused by something you can check or correct yourself; see the conditions listed.
Seat belt reminderCheck and correct
Manual name: シートベルト非着用警告灯 · printed p.70
When it lights
The driver or front passenger seat belt is not fastened; it flashes with a buzzer at power ON or while driving.
What the manual says to do
Fasten the belt correctly. If it stays on with the belt fastened, a sensor misreading is possible.
Collision mitigation braking (CMBS) warning lightCheck and correct
Manual name: CMBS（衝突軽減ブレーキ）警告灯 · printed p.76 · fitted on some grades only
When it lights
CMBS switched off, or a CMBS fault.
The camera at the top of the windscreen is too hot, or obstructed by dirt, ice or frost (also possible in heavy rain, fog or snow).
A dirty front grille stops the radar sensor detecting vehicles ahead.
What the manual says to do
Cool the cabin with the air conditioning; the system recovers once the camera cools.
Clear the windscreen with the washers and wipers, or stop safely and wipe the area near the camera.
Stop safely and clean the front grille. If it is lit without being switched off and none of these apply, have it checked.
Road departure mitigation warning lightCheck and correct
Manual name: 路外逸脱抑制システム警告灯 · printed p.77 · fitted on some grades only
When it lights
A fault in the road departure mitigation system.
The windscreen camera is too hot or obstructed (also possible in rain, fog or snow).
What the manual says to do
Fault: have it inspected by a dealer immediately.
Hot or obstructed camera: cool the cabin, or clear and wipe the windscreen near the camera; the system recovers.
Source: Honda Motor Co., Ltd., Vezel Hybrid owner's manual (Japan), 30T7B6311, PDF dated September 2018. Open the original manual ↗ (Japanese). English wording on this page is a CarFactBook paraphrase of the manual, checked on 2026-10-27.
