2020 Toyota RAV4 Bulb Sizes (Headlight, Tail, Fog)

Quick reference

The 2020 Toyota RAV4 offers a variety of lighting configurations depending on the trim level, with a notable distinction between models equipped with halogen headlights and those with factory LED headlights. It's crucial to identify your specific setup before purchasing replacement bulbs.

For RAV4 models with halogen headlights, the low beams typically use an H11 bulb, providing a standard yellowish light. High beam functions are handled by a 9005 bulb. If your RAV4 came with premium LED headlights from the factory, these systems are integrated LED units, meaning individual bulbs for low and high beams are not replaceable. Instead, the entire headlight assembly is designed as a single, sealed unit, requiring replacement of the whole assembly if a component fails.

Fog lights on most 2020 RAV4 trims utilize an H16 halogen bulb, offering supplementary lighting in adverse weather conditions. The Daytime Running Lights (DRLs) can vary. Some halogen headlight equipped models may use a 7443 halogen bulb for DRLs, while models with factory LED headlights will have integrated LED DRLs. Front and rear turn signals commonly use a 7440A halogen bulb. The "A" in 7440A signifies an amber bulb, which is required for turn signal applications.

Brake lights often share the same 7443 dual-filament bulb as some DRL applications, providing both taillight and brighter brake light functions. However, many 2020 RAV4s utilize integrated LED modules for the tail lights, meaning the LED array itself functions as the tail light and is part of a sealed unit. The reverse lights are typically 921 halogen bulbs, providing white light for backing up. For illuminating your license plate, a 168 halogen bulb is commonly used.

Side marker lights also vary. The front side markers usually take a 194 halogen bulb, while the rear side markers are often integrated LED units within the taillight assembly. Inside the cabin, the dome light often uses a DE3175 festoon-style bulb, and map lights commonly utilize 168 bulbs, similar to the license plate lights.

LED vs Halogen Upgrade Considerations

Upgrading your 2020 Toyota RAV4 from halogen to LED bulbs can significantly enhance visibility and modernize its appearance. However, there are several key considerations:

• CANBUS Errors: Modern vehicles like the RAV4 utilize a CANBUS (Controller Area Network Bus) system to monitor electrical components. Halogen bulbs draw more power than LEDs. When you install an LED bulb, the CANBUS system might detect the lower power draw and interpret it as a "bulb out" error, leading to flickering, partial illumination, or a dashboard warning light. To counteract this, "CANBUS-ready" LED bulbs with built-in resistors or external load resistors are often necessary.
• Adapters and Decoders: Beyond CANBUS, some LED conversion kits may require specific adapters to properly seat the LED bulb in the housing or decoders to resolve flickering or hyper-flashing issues, especially for turn signals. Always ensure the chosen LED kit is specifically designed for your RAV4's year and model to minimize installation headaches.
• Beam Pattern: Aftermarket LED bulbs can sometimes create an undesirable beam pattern in headlight housings designed for halogen bulbs. This can result in scattered light, glare for oncoming drivers, or reduced effective illumination. Look for LED bulbs that mimic the filament placement of their halogen counterparts to ensure a proper beam pattern. For projector-style headlight housings, the beam pattern issues are usually less pronounced than in reflector housings.
• Cooling: High-power LED bulbs generate heat. Reputable LED bulbs incorporate cooling mechanisms like heat sinks and small fans. Ensure there's adequate space in your RAV4's headlight housing for these cooling components.

How to Replace Each Bulb (Short Tips)

• Headlights (Low/High Beam - Halogen): Access is usually from under the hood. Locate the back of the headlight assembly, twist off the dust cap, unplug the electrical connector, unclip the retaining spring, and remove the old bulb. Installation is the reverse.
• Fog Lights: Often accessed from underneath the front bumper or by removing fender liner clips. Turn the wheel fully for better access if needed.
• DRLs (Halogen): Similar access to headlights or sometimes through the wheel well, depending on placement.
• Front Turn Signals: Typically accessed from under the hood, behind the headlight assembly.
• Rear Turn Signals/Brake/Reverse Lights: These are generally accessed by opening the tailgate and removing screws or clips holding the tail light assembly in place. Once the assembly is loose, twist the bulb holders to remove them.
• License Plate Lights: Usually accessed by removing a few screws from the clear lens cover above the license plate.
• Front Side Markers: Often integrated into the headlight assembly or a small separate housing accessible from the wheel well or under the hood.
• Dome/Map Lights: Carefully pry off the clear lens cover using a plastic trim removal tool to avoid scratching the headliner or plastic.

Common Lighting Issues for this Generation

• DRL LED Failure (Later Models/Trims): While the 2020 RAV4 primarily uses integrated LEDs for DRLs on higher trims, some owners of later generations or specific trims have reported premature failure of integrated DRL LEDs, often requiring replacement of the entire headlight assembly.
• Halogen Bulb Burnout: As with all halogen bulbs, they have a finite lifespan. Expect eventual burnouts for your low beam, high beam, turn signal, and reverse bulbs, especially with frequent use. It's advisable to replace them in pairs for consistent light output.
• Flickering After LED Upgrade: If upgrading to aftermarket LEDs without proper CANBUS decoders or load resistors, flickering or hyper-flashing (for turn signals) is a common complaint.
• Condensation in Headlight Assemblies: Although not a bulb issue, some owners have reported minor condensation inside the headlight assemblies, which can sometimes be exacerbated by aftermarket bulb installations if dust caps aren't sealed correctly.

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