How to use your
Buick Grand National GNX

Step on the brake, press the engine start button on the console or steering column; wait for the cluster to confirm ready before shifting out of P.

Console-mounted shifter with R-N-D-S notches; paddles behind the wheel for manual gear control.

There are no selectable drive modes. Throttle response, steering effort, brake feel, and damping are mechanical rather than software-configurable.

Analog gauge cluster centered on tachometer and speedometer; warning lights handle the rest. No reconfigurable digital layouts, no head-up display, no thumb-wheel menus.

Factory audio is AM/FM/cassette (CD changer on late-90s flagships). No touchscreen, no nav, no Bluetooth — connectivity features did not exist on the original car.

Electronic driver assistance is either absent or extremely limited by modern standards. Do not expect adaptive cruise, lane keeping, blind-spot monitoring, automatic emergency braking, surround cameras, or stability-control intervention; leave extra space and warm the tires before driving quickly.

Premium unleaded (91 or 93 octane) is required on Buick performance models — the engine timing is set for it and lower octane causes audible knock and reduced power. Fuel-cap release is a button on the driver door panel; the cap is capless (just push the nozzle in).

Cut metal key with immobilizer chip on most post-1993 cars. No remote-app access, no shareable digital keys, no wallet credentials.

A few things every new owner tells us they wish they'd known on day one:

• Download the brand app (myBuick) and pair it with your VIN before your first long trip — remote climate, charging/fuel-level checks, and remote lock-status save you walking back to the garage in winter.