Buy Toyota 4Runner Parking, Corner, Side Marker, Signal Light

Overview

Toyota 4Runner turn-signal lights tell other drivers when you intend to turn or change lanes, helping everyone stay safe. Modern 4Runners use easily replaced plug-in bulbs or LED modules up front, in the mirrors, and at the rear. The factory system is straightforward, but choosing the right bulb type, avoiding "hyper-flash," and keeping wiring in good shape are key to reliable operation (Diode Dynamics) (XenonPro).

Fitment & Bulb Types

• Fifth-generation (2010-2025) front and rear signals typically use dual-filament 7443 or single-filament 7440 bulbs .
• Fourth-generation (2003-2009) models also rely on 7440/7443 bulbs, documented in the owner-community bulb guide (Toyota 4Runner Forum).
• Many 2014-2025 4Runners run the front blinker at a low-intensity "parking-light" level until the bright flash kicks in (Diode Dynamics).
• LED upgrade kits match the same base but draw far less power-perfect for a long-life swap (Energy.gov).

Signs of a Bad Light

• Fast "hyper-flash" on the dash or outside lens usually means a burned-out bulb or an LED swap that lacks a load resistor (Toyota 4Runner Forum [4Runners.com]).
• A steady dash arrow with no external flash points to a blown fuse or failed flasher relay (StartMyCar).
• Complete silence (no relay click) plus no hazards often indicates the combo-flasher unit needs replacement (Toyota 4Runner Forum).

Installation Steps

1. Turn the front wheel inward for access, then remove a few push-clips in the wheel-liner to reach the bulb socket (YouTube).
2. Twist the socket a quarter-turn counter-clockwise, pull straight out, and swap the bulb (gloves keep oil off the glass).
3. Rear lamps come out by opening the hatch and removing two screws before releasing the housing.
4. On '03-'09 models, you can lie beneath the bumper and twist the socket without tools (Toyota 4Runner Forum).

Troubleshooting

• Check fuse "TURN-HAZ" (10 A) in the interior junction block if both sides quit at once (YouTube).
• Use a digital multimeter: the red-yellow wire should pulse 12 V when the stalk is engaged (StartMyCar).
• Swapping left and right bulbs isolates socket versus wiring faults.
• Persistent hyper-flash after an LED swap is solved with plug-in LED-safe flashers or 6-ohm resistors at each lamp (Toyota 4Runner Forum).

Upgrade Options

• Sequential Mirror Signals-Plug-and-play LED modules add a sweeping amber animation and smoked lens style (4Runner Lifestyle).
• Projector Headlamps with Built-in Blinkers-Some aftermarket assemblies package triple-LED projectors, DRLs, and flowing turn-signal strips in one OE-grade unit .
• LED Bulb Swaps-Quality LEDs last up to 30 times longer than incandescent bulbs while using up to 90 % less power (Energy.gov).
• Always use an LED-compatible flasher or resistors to keep the blink rate legal (Toyota 4Runner Forum).

Legal & Safety

• U.S. rules (FMVSS 108) require amber or red rear indicators and specify brightness, flash rate (60-120 fpm), and minimum visibility angles (Crash Statistics).
• SAE J578 defines the exact color boundaries for automotive amber, ensuring your replacement lamp is road-legal (ANSI Blog).
• A 2022 4Runner lighting recall shows why correct wiring matters: an accessory harness blocked the high beam and risked crashes (NHTSA).
• Check any vehicle for open recalls at the free NHTSA recall-lookup tool.

Care Tips

• Clean lenses with pH-neutral car-wash soap; harsh chemicals can cloud the polycarbonate.
• Use dielectric grease on bulb pins to fight corrosion.
• Test all signals monthly-quick walk-around or mirror check.
• If you trailer often, upgrade to LED bulbs; vibration shortens incandescent life (Energy.gov).

Frequently Asked Questions

Q: What bulb code fits a 2020 4Runner front blinker?
A: The correct code is 7443 (dual-filament) but a single-filament 7440 also fits if you do not need the parking-light function (XenonPro).

Q: Why does my dash arrow flash twice as fast after installing LED blinkers?
A: LEDs draw so little power that the flasher thinks a bulb is out. Install an LED-compatible relay or 6-ohm resistors to restore normal speed (Toyota 4Runner Forum [4Runners.com]).

Q: Can I run white front turn signals?
A: No. Federal and state rules mandate amber flashes to the front and amber or red at the rear (Crash Statistics).

Q: How bright should the light be?
A: FMVSS 108 sets minimum candela values; any DOT-marked replacement meets them, so choose bulbs labeled "SAE/DOT" for compliance (ANSI Blog).

Q: Where is the turn-signal fuse on a 2015 model?
A: It sits in the interior panel left of the steering column; look for the 10 A "TURN-HAZ" slot shown in the fuse-box diagram (YouTube).

Q: Do sequential mirror turn signals work on all trims?
A: Yes-plug-and-play kits are designed for every 2014-2025 4Runner with mirror signal wiring, including SR5 and TRD trims (4Runner Lifestyle).

Q: Is there a recall for 4Runner turn signals?
A: There is no turn-signal-specific recall, but a 2022 safety campaign covers fog-light wiring that interfered with the driver-side high beam (NHTSA).

Q: How long do LED bulbs last?
A: Quality automotive LEDs can exceed 25,000 hours-up to 30 × the life of incandescent bulbs, cutting future replacements (Energy.gov).

Q: Where can I see the official color rules?
A: Review FMVSS 108 and the SAE J578 color specification for exact limits.

For deeper detail, refer to the Toyota Owner's Manual for your model year, or browse the Department of Energy's LED Lighting Guide for efficiency info.