2007 GMC Canyon automatic lights

2007 GMC CANYON
95,000 MILES • 5 CYL • 4WD
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ALAN ZATIRKA
  • MEMBER
  • 2 POSTS
have light switch set to auto, but only running lights come on now when truck started,no head lights.?
Mar 28, 2014 at 8:33 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check fuses and relays underhood first then have multi function switch checked. i'm assuming bulbs are good.
Mar 28, 2014 at 10:53 PM
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ALAN ZATIRKA
  • MEMBER
  • 2 POSTS
yes they work fine when switched over manually. all lights work..
Mar 28, 2014 at 10:59 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
have a pro scan it it may be the body control module or light sensor
Mar 28, 2014 at 11:33 PM
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