TrailBlazer 2WD L6-4.2L VIN S (2003)
16532714 Buick and Oldsmobile --New P/N 16532715 GMC --New P/N 16532716.
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If the part number printed on a circuit board IS one of the part number listed above, then the circuit board is the new design and does NOT
need to be replaced.
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If the part number printed on a circuit board is NOT one of the part numbers listed above, then the circuit board is the old design and MUST
BE REPLACED. Proceed to the next step if either circuit board needs to be replaced.
5.
Turn on the tail lamps, directional signals, etc. and determine if there are any bulbs that require replacement.
6.
Disconnect the electrical connector from the circuit board being replaced.
7.
Remove the three screws attaching the circuit board to the tail lamp and remove the circuit board.
8.
Install a NEW stop lamp bulb in a NEW circuit board.
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On Chevrolet, Buick, and Oldsmobile vehicles, the stop lamp bulb is located in the UPPER (top) socket in the circuit board.
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On GMC vehicles, the stop lamp bulb is located in the LOWER (bottom) socket in the circuit board.
10.
Important: This recall will cover the cost of replacing the stop lamp bulb(s). All other bulbs that require replacement are to be submitted under
the normal warranty operation, if applicable.
11.
Transfer the remaining bulbs from the old circuit board to the new circuit board. Replace any burned out bulbs.
12.
Connect the electrical connector to the new circuit board(s).
13.
Turn on the tail lamps, directional signals, etc. and verify that all bulbs are functional.
14.
Install the circuit board to the tail lamp and install the three screws.
Tighten
Tighten the screws to 1.9 Nm (17 lb in).
15.
Install both the left and the right tail lamp assemblies to the body and install the screws.
Tighten
Tighten the screws to 1.9 Nm (17 lb in).
16.
Close the liftgate.
