GWM Reviews

It’s possible that all these faults happened at the same time from different causes. But you’d have to agree, it’s much more likely that there’s a single cause for all this stuff happening at once. In which case, suspicions are always drawn to the car’s body computer. This controls a huge range of functions including the lights, climate control, dashboard, entertainment, central locking and much more.

Like any computer, they can be faulty from new or sometimes just need a reboot to put them right. I’d start by disconnecting the battery overnight to see if the car comes good after you’ve reconnected it. But even if it does, a trip to the dealer is in order, to log the problem for future warranty claims.

If you jump online and do a search for this very thing, you’ll find a heap of distributors and manufacturers offering just what you’re after. Tonneaus for the Cannon are available in soft and hard formats, made from fibreglass or aluminium, and even versions that offer a roller-top function. If you can’t find what you’re after online, tackle one of the many off-road and ute stores that also stock a range of stuff like this.

If you go down the hard-tonneau route, consider one with central locking that can be paired with the locks on the rest of the vehicle. That way, you’ll have one-button unlocking of the cabin and the tray. It’s a lot less messing around than having a separate set of keys to unlock the cover.

Straight back to the dealer with this one. You either have a problem with the actual stereo unit, the screen that controls it or perhaps even the body computer which has the final say over functions like this one. Either way, it’s a warranty job for sure.

The dealer may be able to reboot the system to return it to normal operation, but whatever happens make sure the dealership logs and records the problem in case it comes back in the future. Sometimes even a problem that returns after the vehicle is out of warranty, if it was first detected when the vehicle was still under that warranty, may mean the problem is what’s called a pre-existing condition and the manufacturer is still obliged to fix it.