LOCATE SLOT FOR REPLACEING BRAKE LIGHT FUSE BULBS

Check fuse Q. Check the contacts in the bulbs. check the operation of the bulbs with a couple of lengths of wire and the battery, or test continuity with a meter. Check the contacts in the connector. Check the earths on the back panel. Check for broken or damages wires.

Fuse Box Diagram Suzuki Grand Vitara (JT; 2005-2015)

https://fuse-box.info > suzuki > suzuki-grand-vitara-jt-2...
It is located under the instrument panel (on the driver's side). The location of the fuses in the passenger compartment: Suzuki Grand Vitara (2005-.

More here

https://www.google.com/search?q=2005+suzuki+grand+vitara+tail+lights+not+working

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The most common culprit is a blown fuse.

Your manual should be able to direct you to the location of the fuse box and applicable fuse. Replace fuses only with those of the same rating called for in the manual.

have you checked the relays.there is one relay in the fuse box up under the dash on the drivers side and the is other relay in the fuse box in the kick panel on the passengers side next to the blower motor. I drive a 1997 leep grand cherokee myself for work

Yes...relatively simple job. 15-20 min. job...and did you check all of your fuses. The fuse or bulb might just be out.

I am a liecenced mechanic. Start addressing your problem by checking the brake light fuse in the main fuse panel. See the owners manual for location. Main one is under the hood. Secondary panel is on the passenger side kick panel area or in glove box. Replace the fuse if blown. If fuse is o/k check brake pedle brake light switch adjustment. If switch is adjusted properly, check rear brake light bulbs next. If they are o/k check for power at the bulb socket with a 12 volt test light with brake pedle depressed. Light should light. If it does not replace brake light switch and check operation. If problem is not repaired buy a repair manual or bring to a technition for diagnosis.

it is a sealed unit and has to be replaced

could be the brake switch went out of it

Check fuse panel, under dash, as well as under hood. Owners manual should also give you map of fuses. May say"park" lights, "running lights", or something similar.

checked all fuses even under hood? may have bad signal switch or bad brake light switch yes even if 3rd brake works.also check wiring under rear fender by bumper thats were wire harness is hope this helps.

This may sound too simple, but it's the same with low beam headlights, until they both burn out you didn't know you had any problems. The cops are usually good for helping us keep track of this. Try two new bulbs.All three bulbs are on the same fused circuit so that eliminates that problem. Let me know how this turns out, Dana