Check bulbs -double filamented with the larger being for tailights Check socket for corrosion Check socket for power and ground Check light switch Run new wire from switch to sockets Check fuse for parking/tailights Check under vehicle for broken/frayed wiring
Tail light assembly short
Same fuse as the tail light circuit.
how to trouble shoot for gmc back up lights?
Take out the old one and put in the new!!
The light is on because there is a problem with the air bag system. Until the problem is fixed the light will continue to illuminate. Once the problem is fixed the light will reset itself.
The Check Engine light is on because there is a problem with the emissions system. Once you have the problem repaired the light will go off.
There is a problem with the SRS. Seek professional help, as it is hazardous to work on this system.
changed battery engine light stays on
The light is one because there is a problem with the emissions system. Once the problem is corrected the service tech will reset the light.
2008 GMC van tail light bulb replacement: Purchase the correct replacement tail light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the tail light bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
GMC Arcadia tail light bulb lamp replacement: Purchase the correct replacement tail light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the tail light bulb lamp replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
You need to replace the whole assembly. go to amazon.com and look up something like this: 93 gmc Tail Light Circuit Board