2018 Holden Colorado Pricing and Specs

If neither the key nor the central locking will lock the hard-tonneau, it’s likely the latch is not engaging properly. Which in turn means you most likely have an alignment problem between the tonneau and the rest of the tray.

I’m not sure if you have the factory tonneau (probably) or an aftermarket one, but these are big, fibreglass panels that can sometimes shift a little on their hinges and fixing points, leading to the misalignment that won’t allow the latches to line up and engage.

The factory HSV tonneau for this car has a quick-release hinging system allowing it to be removed easily for carrying higher loads. Perhaps removing and refitting the tonneau via this feature will return everything to its correct alignment.

Not every Colorado suffers this problem, but there are certainly a percentage that do. It’s a relatively common thing with this model and the first sign is a stain that develops on the roof lining in the rear seat just above the rear window. It’s caused by water entering the cabin through the high-mount brake light assembly.

The problem is caused by the light’s seals that fail over time, and the fix is to remove the light, clean the area around it and then seal it with panel sealer (or something similar) from the outside. If you’re fussy, you can replace the whole light assembly, but that won’t fix the failed seal, so you’ll still need to reseal the area where the light mounts.

It all depends on what parts of the suspension the workshop is telling you is worn out. If the strut tops or suspension-arm bushes are worn out, or there’s a problem with the ball-joints or tie-rod ends being too worn, then there’s certainly the chance that there’s insufficient adjustment within the system to return your wheel alignment settings to their correct spec. Even a worn out wheel bearing can cause all sorts of wheel-alignment issues.

Just because you haven’t felt the problem, doesn’t mean it isn’t there. These issues develop gradually and we don’t always notice the small changes week to week until they become a bigger problem.

If, however, you genuinely think the tyre shop is trying to rip you off, you can have the car independently inspected to see if you’re being told the truth. Your state motoring club should be able to help here. Sadly, some of the bigger car-repair retailers have been caught loading up a customer’s repair quote in the past, and consumers need to be on the lookout for these bogus `faults’ that will be added to the bill. We’re definitely not tarring all big chain retailers with the same brush, but it’s something to be aware of.