B10-021
March 6, 2015
Applies To: 2009–12 RL – ALL
2009–12 RL: Moisture in the Taillight
(Supersedes 10-021, dated August 17, 2010, to revise the information marked by the black bars)
REVISION SUMMARY
- Under Applies To:, 2011–12 model years were added.
- Under CORRECTIVE ACTION, the second paragraph was changed.
SYMPTOM
Moisture, fogging, or small water droplets are visible inside one or both taillights. and it does not dry up even after several days of dry weather.
NOTE: Although the updated taillights are an improvement, they are not sealed units. They are vented to allow a free exchange of air, so some moisture in the taillights under some conditions is normal.
PROBABLE CAUSE
High humidity plus insufficient ventilation causes condensation in the taillight(s).
CORRECTIVE ACTION
Inspect the taillights, and replace them if they are not the updated type. If equipped with updated taillights, replace the taillight vent caps with drain tubes.
Do Not replace updated taillights that have drain tubes installed. There is no further action required for this vehicle. Moisture will dissipate by itself and won’t affect taillight operation.
PARTS INFORMATION
| Drain Tube Kit: P/N | 06335-TM8-305 |
| Left Taillight Assembly: P/N | 33550-SJA-A13 |
| Right Taillight Assembly: P/N | 33500-SJA-A13 |
WARRANTY CLAIM INFORMATION
| OP# | Description | FRT |
| 7141C0 | Replace one taillight. | 0.2 |
| 7141C1 | Replace both taillights. | 0.4 |
| 7140A7 | Install a drain tube kit on one taillight. | 0.2 |
| 7140A8 | Install a drain tube kit on both taillights. | 0.4 |
The normal warranty applies.
| Failed Part: | 33550-SJA-A11 |
| Defect Code: | 09999 |
| Symptom Code: | 01301 |
| Skill Level: | Repair Procedure |
DIAGNOSIS
- Check the taillights to see if they been replaced with updated taillights (with slots).
- If updated taillights are installed, go to REPAIR PROCEDURE, and install drain tube kits.
- If the original style taillights are installed (no slots), go to REPAIR PROCEDURE, and replace the taillight(s).
REPAIR PROCEDURE
- Open the trunk lid, and remove the taillight lid.
- Remove the two bolts from the taillight.
- Remove the maintenance lid in the trunk and the special nut from the taillight.
- Slightly pull out the taillight, turn the bulb sockets 45 degrees counterclockwise to disconnect them, then remove the taillight.
- Carefully remove the two rubber vent caps from the taillight with a flat-tip screwdriver.
- Install drain tubes where the two rubber vent caps were removed. After installing the drain tubes, make sure they face each other at about 45 degrees from vertical as shown.
- Reinstall the bulb sockets, the taillight, the special nut, the two bolts, and the maintenance lid.
- If the other taillight has moisture in it, repeat steps 1 thru 7 on that side.
- Pack of 10 bulbs, Non Canbus LED bulb, Fit bulb size: 194, 168, 174, 175, 2825 etc, multiple usage automotive interior light bulb. Can fit applications like map light, dome light, door light, license plate light, trunk light depending on the model of the car.
- Non Polarity specific which mean you can plug the bulb in either way and it will still work
- Each bulb built with three 3030 high power SMD. Give your car pure white super bright light output.
- Direct replace the original halogen bulb. Plug and play for easy installation.
- each bulb output 200 lumen super bright white color.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- Direct replacement for all T10 Wedge Type W5W, 147, 152, 158, 159, 161, 168, 184, 192, 193, 194 2825. Car Interior Dome Map Door Courtesy License Plate Light
- Input : DC12V, No UV or IR radiation - LED : High Quality Chip SMD5050 x 5P. - Color : White 6000K.
- If they don't light properly after inserting into the socket, please insert oppositely or flip the bulb horizontally to match the + and - polarity.
- Please try to pull the pins on the base outwards a little in case the bulb is slightly loose or no good contact in the socket.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
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