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-   -   1968 GMC Reverse Lights not Working (https://67-72chevytrucks.com/vboard/showthread.php?t=844966)

68gmcdude 06-03-2023 08:53 PM

1968 GMC Reverse Lights not Working
 
Hi All...
I have a ’68 GMC stepside with a 3-speed on the column. Both reverse lights have stopped working. What is the best sequence of steps to diagnose the issue? Thanks!

Smitty 06-04-2023 12:18 AM

Re: 1968 GMC Reverse Lights not Working
 
Check the switch on the lower end of the steering column inside the cab. If the house and bulbs are good. You can Google it also to find articles on it. Or go to the FAQ section.

68gmcdude 06-04-2023 03:56 AM

Re: 1968 GMC Reverse Lights not Working
 
Quote:

Originally Posted by Smitty (Post 9209279)
Check the switch on the lower end of the steering column inside the cab. If the house and bulbs are good. You can Google it also to find articles on it. Or go to the FAQ section.

Thank you Smitty...

dmjlambert 06-04-2023 09:28 AM

Re: 1968 GMC Reverse Lights not Working
 
Also check the fuse, it is labeled B/U LPS.

68gmcdude 06-04-2023 09:53 AM

Re: 1968 GMC Reverse Lights not Working
 
Quote:

Originally Posted by dmjlambert (Post 9209348)
Also check the fuse, it is labeled B/U LPS.

Will do! Thanks!

72SB 06-04-2023 02:37 PM

Re: 1968 GMC Reverse Lights not Working
 
if the BU light switch is at base of steering column for 3 OTT, what is the switch on the upper, DS, of trans, Saginaw, for? Mine is a 72. I assumed it is the BU light switch

'68OrangeSunshine 06-04-2023 08:01 PM

Re: 1968 GMC Reverse Lights not Working
 
On my 4-speed SM465, the B/U Switch is on the transmission. 3-speeds may be different.

68gmcdude 06-13-2023 08:10 PM

Re: 1968 GMC Reverse Lights not Working
 
Simple fix. Fuse was blown. Contacts were rusty so I cleaned them up with Dremel wire wheel.


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