AAATHE Vehicle maintenance, safety and security 1. Vehicle maintenance  Take special care that lights, brakes, steering, exhaust system, seat  belts, demisters, wipers and washers are all working. Also  Laws RVLR 1989 regs 23 & 27 & CUR 1986, regs 30 & 61  Warning displays.   Make sure that you understand the meaning of all warning displays on the vehicle instrument panel. Do not ignore  warning signs, they could indicate a dangerous fault developing.  ● lights, indicators, reflectors, and number plates MUST be  kept clean and clear  ● windscreens and windows MUST be kept clean and free from  obstructions to vision  ● lights MUST be properly adjusted to prevent dazzling other  road users.  ● Extra attention needs to be paid to this if the vehicle is  heavily loaded  ● exhaust emissions MUST NOT exceed prescribed levels  ● ensure your seat, seat belt, head restraint and mirrors are  adjusted correctly before you drive  ● ensure that items of luggage are securely stowed.  ● When you turn the ignition key, warning lights will be  illuminated but will go out when the engine starts (except  the handbrake warning light). If they do not, or if they come  on while you are driving, stop and investigate the problem,  highwaycodeuk.co.uk 179 