A settled, low-recall 5.7L V8 year — the worries are a sunroof that can shatter, a highway shimmy, and the free fuel-pump fix.

The loudest recurring item in the 2020 file: the sunroof shattering with no impact — 'sounded like a loud pop,' glass typically blowing upward and out, sometimes landing on the closed interior shade. Multiple owners report it at highway speed in clear conditions, and a related pattern involves the sunroof cables seizing (tied by one dealer to a technical service bulletin). There is no recall. Comprehensive insurance is the practical backstop. Inspect the glass and ask about any prior glass claim on a moonroof-equipped truck.

Two owner-reported characteristics. A steering-wheel shimmy and front-end vibration at highway speed appears in several 2020 filings; owners chase it through balancing and alignments while dealers call it normal — on a body-on-frame truck it is usually tires and needs a road-force balance, though a few owners escalated. Separately, a handful of owners report the engine failing to start in extreme heat (110°F-plus) and restarting after it cools; dealers struggle to replicate it. Drive at highway speed for the shimmy and, if you are in a hot climate, ask about any hot-start history.

The XK50 mechanical inspection carries over. The cam-tower oil leak (a $1,200–$1,500 reseal, mechanic estimate) weeps onto the exhaust manifold — check for smoke and a burning-oil smell. If the truck came from a salt state, inspect the frame, front calipers, and rear wheel-bearing backing plates from underneath; a rotten frame is a walk-away. This year has no factory transmission cooler, so add a thermostatic one if you tow heavily.

Three more free recalls: 21V-688 (21TB06/21TA06) fixes a headlight circuit that can overheat its connector (fire risk); 20V-410 (20TB12/20TA12) fixes dim front turn signals (FMVSS 108); and 21V-920 (21TB10/21TA10, plus 21E-103 for service parts) covers the power-steering gear that can leak and lose assist. Verify by VIN.