Turn Signal Indicators
What it means
Shown as two green arrows pointing left and right, one flashes when a turn signal is on and both flash together with the hazard lights. They are information lights, not warnings. If one side flashes faster than normal, a bulb on that side is usually out; this behavior is common but not present on every car.
Symptoms4
- Arrow flashes with a clicking sound when signaling.
- Very fast flashing on one side.
- Arrow stays lit without flashing, or does not light at all.
- Signal does not cancel after straightening the steering wheel.
Possible causes6
- Turn signal or hazard lights switched on, which is normal.
- Burned-out front, rear or mirror-mounted signal bulb.
- Corroded connector or poor ground at the lamp unit.
- A bulb of different wattage from the original, such as an incompatible LED bulb.
- Faulty flasher relay or turn signal stalk.
- Body control module fault on newer cars (less common).
How to diagnose5
- Switch on the hazard lights and walk around the car to find the lamp that is not flashing.
- Look for a bulb failure message on the instrument display.
- Inspect the failed bulb and its connector for corrosion.
- Check the signal fuse if neither side works.
- At the workshop: test the flasher relay and stalk, and read body module codes where fitted.
How to fix5
- Replace the burned-out bulb with the same type and wattage.
- Clean the connector and repair the ground.
- Use compatible bulbs or the correct load resistor if LED bulbs were fitted.
- Replace the flasher relay or blown fuse.
- Replace the signal stalk if confirmed faulty, then confirm both sides flash evenly.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
In the Saudi market: SAR 40–700 (≈ USD 11–187)
Our prices come from the Saudi market, converted at a fixed rate (SAR 3.75 per USD). Prices in your country may differ a lot, so we show the cost level.
The repair starts with a cheap bulb, and reaches the upper end for a new signal stalk or a mirror signal unit.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Why does the signal flash fast on one side only?
On most cars fast flashing means a bulb on that side is out or poorly connected, and the system warns you by changing the flash rate.
Should I use hazard lights while driving in rain?
Hazard lights are normally for emergency stops or a sudden hazard, and traffic rules on using them while moving vary, so follow local traffic regulations.
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