TSB 19NA273 — Chevrolet, GMC and Pontiac Service bulletin

19NA273 is a service bulletin on file with NHTSA for 8 Chevrolet, GMC and Pontiac models, 1994–1999 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock.

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
8Vehicles named
6Model years

Vehicles and model years 19NA273 names

VehicleModel years
Chevrolet Camaro 1999
Chevrolet Corvette 1999
Chevrolet Malibu 1999
Chevrolet Suburban 1995, 1996, 1997
Chevrolet Tahoe 1995, 1996, 1997
GMC Yukon 1995, 1996, 1997, 1998
Pontiac Grand Am 1996, 1997, 1998, 1999
Pontiac Grand Prix 1994, 1995, 1996, 1997, 1998, 1999

Every document filed under 19NA273

Document IDFiledType
19NA273 December 2, 2019 Service bulletin

What 19NA273 covers

Electrical — the component vocabulary NHTSA files this communication under.

← All Chevrolet Camaro TSB years TSB lookup by model

Questions buyers ask

What is TSB 19NA273?

19NA273 is a service bulletin filed with NHTSA by Chevrolet, GMC and Pontiac, covering 8 Chevrolet, GMC and Pontiac models across the 1994–1999 model years. NHTSA's summary reads: This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock.

Which vehicles does 19NA273 cover?

NHTSA's file names Chevrolet Camaro (1999); Chevrolet Corvette (1999); Chevrolet Malibu (1999); Chevrolet Suburban (1995–1997); Chevrolet Tahoe (1995–1997); GMC Yukon (1995–1998); Pontiac Grand Am (1996–1999); Pontiac Grand Prix (1994–1999). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB 19NA273 a recall, and is the repair free?

No. 19NA273 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of 19NA273?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 19NA273, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 19NA273. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.