auto locks are not working, shifter stuck in park?
2003 CHEVROLET BLAZER
133,000 MILES • 4.3L • V6 • 4WD • AUTOMATIC
1BRAD1
MEMBER
1 POST
Having issues with dome light not working, auto locks are not working, shifter stuck in park and rear lift glass buttons power can’t hear clicking
Dec 24, 2025 at 9:31 AM
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STRAILER
✓ASE Certified Mechanic
54,832 POSTS
Yep, this happens when one or more fuse is blown, here is a guide to help you do the tests, (key on) please check for power on both sides of the fuses. Her
e is the ones I would check first.
CTSY LP / DOME (10A)
BCM / BODY (10A or 15A)
LOCKS (20A)
STOP (15A) - important for shift interlock
Underhood fuse box
IGN 0 / IGN A
BCM
PWR ACCY
Let me know what happens. Ken
Dec 26, 2025 at 9:37 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.