GM High beam headlight relay will increase the intensity and improve the spread pattern by keeping all four lights on when in high beam mode.
Since the 4-headlight system was introduced in 1988 on GM pickups and Suburbans, owners of these vehicles have wondered why their low beams go off when the high beams are turned on? No good reason we can think of.
This product is in the following categories:
Part #: 30802
1988-98 GM fullsize trucks and SUVs
Part #: 30821
1999-2002 GM fullsize trucks and SUVs
Part #: 30822
2003 GM fullsize trucks and SUVs
Part #: 30823
1998 and later Chevy S10 and GMC T15